Chose ODonnell to update/replace my furnace and A/C after getting quotes from multiple companies. They arrived as scheduled and did a fantastic job - including moving the outside A/C unit to a new location. All went well and 6 months later Im still a very satisfied customer. Highly recommend!

I LOVE ODonnell Heating & Cooling! Have been using them since 2004 when I purchased my home in Tonawanda, NY! The young woman who was lead on installing my new furnace really knows her stuff, & was also very knowledgeable on another issue I asked her about. She was professional & very personable! Also appreciate their input during maintenance visits!

Tim and Nick arrived at my home and started working on removing my old Furnace and AC unit. These two units were very old and out dated.When my old furnace was removed, I wanted to vacuum the area all around, to make sure it was clean before the new unit was installed. Nick insisted he would vacuum for me and made sure it was clean before he started.They tested both systems on completion and explained their operation. I also had a course on how to program my new thermostat accordingly.I would highly recommend this company for their professionalism and knowledge and would refer them to my family and friends. They worked very well together and were very knowledgeable and professional.

Nothing but good things to say about ODonnell. They repaired both the furnace and AC until it was more cost beneficial to replace. The price for replacing both was excellent compared to other quotes. Service has been excellent. Staff over the phone has been excellent as well. Great company to use, highly recommend.

The two Technicians arrived on time and went right to work. I needed both a new furnace and AC; and each took on his/her removal of the old unit and installation of the new one. They even took their shoes off when installing the new thermostat! Dawn had the paperwork and manuals all together at the end.Super pleased with the professional workmanship and interaction of the technicians. I would recommend O’Donnell to anyone who demands expert and reliable units and installation!

Had both new furnace and A/C unit installed in October 2020. Wanted to wait to review until both units ran. Both work perfectly. Very pleased with the service ODonnell provided us. The owner was very pleasant as well as his employees. Everything went as expected. I highly recommend them.

O’Donnell has helped me out in a pinch - twice - and both times they did quality work, installing quality products. The owner takes a hands-on role in communicating things clearly and in English. He understands my needs and provides an appropriate and affordable solution.

O’Donnell Heating and cooling are very reliable and professional company to work with. They are very reasonable priced compared to other quotes that I received. I highly recommend this company and will use them in the future.

Jim gave me the best price on a new ac installation. He had 2 workers working to get the job completed on time and efficently. I was very pleased with the work and service provided. Wonderful! Would recommend them highly.

Very good customer service. Derick and Alyson were very friendly . they answered all questions i had to ask . they didnt make me feel like i was bothering them when i asked. I will tell everyone what excellent service i had with ODonnells heating and cooling . Thank you

Jim came quickly when asked to provide an estimate. The price was good and a date set for installation of A/C and furnace in 6 weeks. Dawn was consistently available for questions. Installers Jacque and Allison were professional and efficient. Despite a technicality raised by the Town of Amherst in issuing a permit, everyone kept focused and completed the job as promised.

Priced right. Timely installation. Friendly staff. Professional attitude with a caring attitude to make sure you get what you need without pushing the extras you dont need

Enjoy had O’Donnell ‘s in to replace our current furnace and AC unit. They did a great job installing both. They also installed a tankless water heater. The two gentlemen that they sent were professional and keep the work area clean. They answered all questions concerning the installing and service after wards. I would definitely used this company again.

We had ODonnell replace our furnace and air conditioning in Sept 2020 and couldnt be happier. I obtained estimates from six vendors - ODonnell was 2nd or 3rd lowest but with all things considered, they were the best value - from equipment brand and model, installation, warranty and overall pre-sale service. I highly recommend them.

16 year old ac unit died out, due to freon changes in 2020 was forced to replace my ac and furnace, something I was NOT prepared for. Came home from work after spending $8200 for two new units, install technicians didnt relight my hot water tank (disappointing cold shower after a long day at work), and the $8200 didnt even include a .99c air filter... was left with no filter in my new unit. Spoke with office manager prior to this review to afford them the opportunity to make it right and was told to buy my own filter and they would let the techs know they didnt take care of the hot water tank... wow.

Quick and efficient installation of a new furnace. Installers were very professional, courteous and did a great job. Would use this company again.

Great service! They installed our new furnace and do the maintenance! Very reliable!

ODonnell Heating & Air Conditioning installed a new AC and heating system in May, 2020. What a big difference in the efficiency and how quiet the new system performed. Last summer, the A/C worked wonderfully. Im looking forward to the same this summer! I highly recommend them for their professionalism, excellent service and knowledge in heating and cooling.

The owner Jim was available to answer all of my questions regarding this process. I had two furnaces installed at my rental property and he provided great insight and his price was unmatched by any other company I had provide a quote. On the day of installation, I had 4 technicians install both furnaces and everything was started, finished, and cleaned up within 6 hours. Everyone I have spoken to within this company was extremely friendly, professional, and knowledgeable. ODonnell is the first and only company I would recommend to anyone needing work done. I will be using them in the summer to install the Air conditioners on my systems as well.

The crew were very complete and did a good cleanup would recomend them 100%

Technicians extremely knowledgeable . Installed a complete central air conditioning system and one ductless unit. They were very accommodating to us, explained the entire system and answered all of our questions . I highly recommend ODonnell Heating and Cooling.Beverly Brown

Excellent service from the initial call by Jim ODonnell to the installers David and John. Nice and cool now. Thank you.

What an awesome professional job I had a new a/c installed and I switched a hot water tank to a tankless water heater. Tim and Nick were very polite very knowledgeable and worked together very well no issues and in a timely fashion very impressed and happy with their job

We have recently had a very positive experience with ODonnell Heating & Air Conditioning. Our 1960s boiler had been declining for some time, and we called ODonnell for an estimate for replacement. Jim ODonnell came and the estimate was very reasonable, in the ballpark of another we had received, and as he had installed a furnace in our previous home (with which we had absolutely no issues or concerns after installation) several years ago, we felt inclined to trust him again. Additionally, he was his same jovial self, offered much information on the potential new product, and answered all of our questions right there...and then a few more that popped up later on the phone. However, life got in the way and other priorities came up, leaving this on the back burner.A few weeks later, the old boiler began making grinding noises that started late at night, just as we were heading to bed. We became a bit concerned, wondering if the sounds indicated the boiler was operating in such a way that might be unsafe. I called ODonnell Heating and Jim ODonnell, himself, answered the phone. He was friendly, personable, not at all bothered by the call, even at that hour, and was extremely helpful. We brought the phone downstairs so that he could hear the sound and he identified it immediately and remembered well the condition of the boiler from the estimate he did weeks earlier. He let us know that the part would be very pricey on a model of that age, and had referred us to ponder the estimate that he had done a few weeks earlier. We decided to replace the boiler and he had an appointment open just two days away...so we took it.The installation went smoothly and the techs were friendly and efficient. They explained what would happen each step of the way as they shut off the gas, electric or whatever else was necessary to make the installation possible. I was present for the installation and it went as smoothly as could be.Since that time, we have heard not a sound from our new boiler and we feel very secure in the job that has been done. We are extremely pleased with this service and are happy to recommend ODonnell Heating & Air Conditioning to others. Thank you, Jim, for another job well done!

I am doing this for a friend, he will not write in a comment...My friend called, scheduled an appt, owner showed up. My friend liked him and was impressed and though he was grounded...... Not so fast!! After he go several proposals all similar. He selected ODonnell. A date for installation was given about 8 weeks later. J received a call /message on Monday June 7th, to confirmed the installation on Wednesday June 9. J calls Tuesday June 8th to say yes to the installation, and called back later on to clarify the financing. When J gets home on Tuesday afternoon a finds a message from the owner recorded around 3:30 pm. Letting him know the outside unit was not available (was to be delivered that day and nothing) to call him back. An hour later J calls. he gave him some other alternatives of units J did not want from the beginning. J asked for the substitute upgrade. the owner/Jim agreed in a fair way, gave him the information so J can look it up (after J put hours in researching what he was about to purchase and agreed to). He calls the owner an hour later, and was IGNORED, J proceeded to leave a message asking to call him back all this around 5:40 om. Never got a call back. The next day (installation day) J called the office first thing in the morning, the owner Jim answers and said that he was trying to call earlier (before 8am) and could get a hold of him (J), not true. I was visiting from Monday and we were up at 5am. All these events caused stress J lost all trust and confidence and decided to canceled all of it. people have to be upfront and honest. I believe J was treated with indifference in a total did not care mode. To the business losing a customer do not mean a thing, it seems like. All the good the business owner could had done to please and satisfy a customer was not a priority. Is it because J is Latino, has a slight accent? It was felt that J had no value, no one can tell but J. I wished Mr ODonnell would had made the right thing for such an extraordinary human being as J. I hope I can change the story with a better outcome.. maybe !

Called about replacing our hot water tank. Once they discovered that it was because our tank was broken, they went out of their way to come as soon as they could and help us get the tank replaced. Our installers did their work fast and efficiently, explained anything that needed explaining, and then we were all set. Price was right in line with other quotes received, and quite reasonable. Highly recommended!

We had ODonnell Heating and Cooling replace our air conditioner and furnace last July. We were extremely pleased with the company from start to finish. We had four companies give us quotes and ODonnells was the best overall and the owner explained in detail what we could expect during installation. We were in the middle of the covid pandemic and ODonnells whole team took all the extra precautions for everyones safety. They showed up on time, were courteous, installed both units efficiently and even fixed an issue with our tankless hot water heater that we had been unaware of. After their clean-up you wouldnt have known they had even been there - except for our new units, which we have had no problems with. I would definitely recommend them to anyone looking to replace their heating/cooling units.

ODonnell Heating & Clg Inc. recently installed a Lennox furnace in my home. The technicians arrived on time and they put down tarps to protect my floor in the foyer and the carpeted stairwell to the basement. They gave me an overview of my new furnace and both were friendly and courteous. Everything was done in a reasonable period of time and they even scheduled a truck to stop by later to take away the old furnace. Cleanup was excellent. I would highly recommend this company!

Great service from receptionist, sale person and installers. Very professional. I shopped around and they offered the best solutions and ideas and the price was very competitive that is why they have been so successful and been in business for years. Nothing like a piece of mind know they will still be around for years to come. Thank you everyone at ODonnell keep up the amazing job. Joe K

O’Donnell is a wonderful business, the people there are so nice especially the people that come to your house. I recommend O’Donnell to anyone who is looking for such a nice, small place for your heating and cooling. They are a locally owned business and they are very receptive to their customers by returning calls right away, to getting you scheduled in with in a week. Highly recommend them

Im actually writing about an experience that I had with this company over a year ago. The reason Im writing it now is because of the bill board advertisement for this company that I saw that was the exact opposite of my experience. The bill board basically states that we fix the other guys repairs. Well in my case, I had an incident where carbon monoxide had gotten in the house from the boiler vent that was next to my side door, setting off the carbon monoxide detector. I called the fire department, The fire department discovered a high CO level in my house and a high level of unburned gas coming out of my outside vent because of my son leaving the side door open, the unburned gas was getting back into the house. I called ODonnell HVAC and very quickly Mr. ODonnell arrived at my house. I explained to Mr. ODonnell what the fire department had told me to which Mr. ODonnell told me that the problem was that the burn chamber had been damaged and the boiler should be replaced. I told Mr. ODonnell that my furnace was only 2 and half years old. Mr. ODonnell replied that the high efficiency boilers are not very reliable and a less efficient furnace would be very reliable. I pressed Mr. ODonnell on fixing the burn chamber instead of replacing to which I was told that he could take it apart and clean it with no guarantees and the cost would be 1/3 of a new furnace. Keep in mind Mr. ODonnell hadnt examined anything, he was only going off what I had told him. Reluctantly, I signed up for a new furnace which was to be installed in 10 days (April time period). I had time to think about this and also get a second opinion. I also checked reviews on ODonnell Heating and Air Conditioning and found one negative review that was similar to my experience (no look recommendation for a new furnace). I called SunBeam HVAC, the service technician came out, evaluated the vent output and confirmed that I had an extremely high CO output. He stated that when my system had been put in that they had not adjusted the fuel to air mixture. The technician made the adjustment and reanalyzed the vent output. The CO output had gone from 14,000 parts per million down to under 100. Problem fixed for 300 instead of 4,000. I meant to write a review at that time but let it go until I saw this bill board advertisement stating that ODonnell fixes the other guys repairs (something to that effect) which was certainly the opposite in my case. Mr. ODonnell did not charge me for his recommendation maybe by design. Needless to say I called and cancelled the furnace replacement because of the real problem being fixed. I never got a call back form Mr. ODonnell.

Had a hot water and furnice replaced 3 years ago hot water tank started to leak called them to replace it gave them all information by email aweek has past and i did not hear from them yet bad co to deal with

Jim and his team are all wonderful. I had them install my AC in 2008 and just had them install my new furnace in 2020. Every one of the employees that I dealt with are professional and helpful in explaining the process and answering questions. I highly recommend this company for your HVAC needs.

The installers were very professional and courteous. Explained the installation and function of. the new furnace. I would highly recommend them to others.

I had a furnace and air conditioner installed and the workers were super. They were professional in their work and did a great job cleaning up.

From the moment I spoke with the scheduler in the office to my contact with the service men, the experience with ODonnell was easy and pleasant. I am a new customer, yet was given same-day service. I originally called for service to my furnace/AC because water was leaking from the hoses. Id also lost hot water so needed the tank inspected. When Justin arrived, he immediately determined that the hose leak was simply caused by a switch in the fuse box that was off. Next he discovered melted wires, which he showed me, in the hot water tank,. They replaced the tank the next day. As they were getting ready to leave I noticed water gushing in the sump area. Justin attempted to make an adjustment, but when that failed he turned off the back-up pump that was malfunctioning and arranged for a plumber to call me. That evening the plumber, Kevin, stopped by and explained in detail the cause of the problem with the back-up pump. As soon as he is able to get a new part he will be back to do the repair. The patience, courtesy, workmanship, attention to detail, and integrity of the ODonnell staff and crew is outstanding. I will be calling them soon to do a maintenance check on my furnace.

I was referred by a friend who had a great experience..me not so much! Called the night before was told someone would come between 8-9am next day 9:40 noONE called in was told someone was told to show by 9am..I took a 1/2 day off of work! Showed up at 10:20 looked at thermostat I put in said it probably was motor but unit was old would take a bit to find he said dont quote me $500-600. I said Id get back to him 5 min later it stopped working he showed me what to spin to make it go..nothing! I called back to say I was disappointed after 2 hours late and 20 min of his time I had it work for 5 min!? The hard part to find was $60 on Amazon felt a little taken advantage of that to me is a BIG difference I paid $94 and still tipped because I actually thought it was fixed!! I understand paying a service call but when I called back the lady at desk pretty much thought I should buy a new one it was too old....I was calling for help and heat!!

Jim, you have a great business with informative, cooperative, friendly office staff to installers. Fantastic professional service. Been with you many years and never had a bad experience. Always a pleasure knowing my service calls will be fulfilled completely.Thanks,

We recently purchased a new AC unit and an air purifier from ODonnell Heating and Cooling. We had wonderful service from the moment we got our quote. The install was great and the workers doing the install were very professional and polite. I dusted my home soon after everything was installed and thanks to the air purifier the dust in my home has greatly decreased. We are HIGHLY satisfied with our products and service from ODonnell Heating and cooling and will be forever customers!

From start to finish ODonnell Heating & Air Conditioning Inc did a great job installing and cleaning up the old units in under 7 hours, thanks for the great service.

We purchased a new Lennox furnace A/C and water tank and are extremely happy with the service and installation. Technicians seemed very knowledgeable and efficient. Great company friendly staffDefinitely will recommend. 12/18/20

We called ODonnell heating as we have since 2009. They came out to the house and told us we needed a pump for our boiler system. It would be about 600.00, we said ok. My mother called the office a couple days later to see when they thought they could be out. She was told by a Tammy that she was looking for a pump but said it was going to be a while if they could even find one and she should just put a whole new system in. My mother said she was just listening to the service person and her son. Tammy said well thats your problem your listening to your son. Obviously not the correct thing to say to an 86 year old mother. I am in business and had any of my staff ever spoke to a customer in such a demeaning manner I would let them go. We will never contact ODonnell heating again for any reason and let this be a lesson to the staff. We dont need you, you need customers and ODonnell just lost a long time customer.

Everyone with this company is professional, friendly, and knowledgeable. The owner came out to provide an estimate for a replacement unit. He was friendly and offered me a deal. I know I can trust this company and have used them several times since I bought my house in 2014.

Do yourself a favor & call O’Donnell for all your heating & AC needs! My 21 year old system was on its “last legs”. After getting 2 estimates a friend recommended O’Donnell. Jim was fantastic. He is professional, honest & reliable. His price is fair for top quality products. He won’t pressure or “up sell” you. He clearly is seeking long term customers. His crew was polite, professional & neat. Lennox products & install were top notch. Dawn in the office is friendly, funny & a master at exceptional customer service. Jim will stand behind his products & workmanship & will always make it right; no BS! I hope I don’t need them for a long while; but I would call O’Donnell first for any future needs!

The service is excellent....I highly recommend them....

Owner personally came out to my house to help refill the A/C system. He offered to continue to top-off the leaking system until they could schedule the new system install, which he did. The two workers who came to do the A/C and furnace install were quick, clean, and friendly. Everything is working great. I highly recommend giving ODonnell a call for comparison to any other HVAC company.

Our furnace blower motor went on our older furnace. Jim answered my call after business hours and came by the very next morning. He gave us a quote to repair and a quote to replace the furnace. I wanted to update the furnace and AC at anyway. He recommended an appropriate system for our needs / house size. The price was also reasonable after incentives.A few days later, they came on time and did a quality job. They were tidy and very professional. The crew was also very helpful with answering any questions I had. I wanted them to relocate the line set in the basement that was in the way and they did an awesome job on that.Lastly, they were prepared with the paperwork I needed to get rebates from National Fuel so I did not have to figure that out on my own. Would definitely recommend - the system is working great!

I wanted to get my air conditioner fixed he didnt want to hear about just tried to sell me a new one

Cannot say enough positive things about ODonnell Heating & Cooling; from the first person you speak with on the phone to the tradesman who comes to your home - responsive, professional, and knowledgeable. High value! We had a minor repair done today to get ready for the heating season. HVAC system running great. thank you !

I was very impressed with the installers work. This was a tough job. In very tight quarters they removed a 55 to 60 year old furnace and replaced it. Including the humidifier and duct work. The Installers were professional, knowledgeable, and patient. GREAT WORK.!!!!

I would highly recommend ODonnell Heating and Cooling. They installed a new furnace for us Dec. 2019. Everything about them was professional from the initial visit thru the installation. And we love our new Lennox furnace how well it heats the entire house, not just the rooms closest to the thermostat. Love how quiet it is too. Hard to tell it is even running.

Replaced old furnace and A/C unit.Great job, pricing was in line with all other quotes that I had received.Crew installed both items in an afternoon. They were very polite and professional, they removed the old equipment. There was no clean up needed afterwards!They even loaned us a portable A/C unit to use in the bedroom while we waited for the install appointment.

Cannot say enough good things about my experience. My call for service was answered immediately by Jim, the owner of the company. He immediately came and recommended a replacement for my 21 year old furnace with a very fair price. I also get a $500 rebate for my purchase through National Fuel. When asking if I needed my duct work cleaned he said, dont waste your money and I appreciated his honesty and non-pressure sales approach. I would definitely recommend ODonnell Heating and Cooling to my family and friends. Thank you!

When our air conditioning decided not to work just the first hot spell of the season hit, we had to act fast. After calling a few different companies, ODonnell was able to come out to our house the earliest. Plus they had a lower service call charge. Jim. the owner came out and tried a few things to get it working but it ended up being a bad compressor in a 15 yr old condenser unit. Not only that, but our furnace, still working ok, was 21 yrs old. So we decided to go with a complete Furnace-A/C package and Jim gave us a very fair price. When it came time for installation, the crew was on time, very professional and did a clean, neat install. Throughout the whole process we were impressed with everyone at ODonnell. From the office staff, to the owner, to the install crew. Very pleased we chose ODonnell and would highly recommend them.

This company was impressive from the first phone call, to the day of installation! Every employee was professional, and courteous. The work was done as promised and on time!! I will recommend this company to everyone!

Every aspect of my experience with ODonnell Heating and Cooling was excellent. Dawn (office) was exceptional. Jim (owner) very professional, knowledgeable and extremely easy to work with. Installers(Tim and Nick) extremely able and competent. Installation of new furnace and A/C went without a hitch.

I called ODonnell over Memorial Day Weekend 2020 as our A/C unit stopped working. My plan was to replace the unit earlier that Spring (it was 15 years old and showing and sounding its age) with our regular HVAC company, before we experienced the very scenario of it going out on us (I didnt think it had another summer season left in it), but we got sidetracked.When Jim arrived to give us a quote I already made the decision we would be replacing the unit. Jim told me he would likely be able to get the unit running (that thought never crossed my mind). He opened the unit and had it running in a short amount of time. We now had the option of being invoiced for the repair or we could put that money towards a new unit. It worked out well for us. They were scheduling about 3-4 weeks out for new installation appointments, so we were able to continue to use out existing unit while waiting for the new installation.We usually use a hyper-local HVAC company who we know and trust right in our town, but given the circumstances and the length of the heat wave when our A/C went out, we had no choice but to go with someone else as we couldnt get a service appt with our current company for over two weeks (which was understandable).ODonnell was responsive, prompt, honest, fair and reasonably priced. A company could have taken advantage of us given the situation (a long stretch of hot and humid days). Youd pay almost anything to get your A/C running under those circumstances. They didnt do that. I would call them again.

Have been using them since I bought my house in Tonawanda 6 years ago. Called them out because my AC stopped working and they diagnosed it as a bad capacitor and repaired unit for super cheap. Didnt try to sell me on a new unit. Also recently I had them come in and install a new Boiler. They had one of the best prices from the quotes I had. They came in and had the job done in only 6 hours! Their install crew was very professional. Highly recommend if you need ac/heat work done.

My old furnace (RIP) fired its last flame on Christmas day. After scrambling to find a replacement, I spoke to a good friend who referred me to ODonnell. So I gave them a call. Long story short, they replaced it two days later. I was extremely happy with how smooth the install and removal of my heating and cooling system was. I couldnt find anyone that could respond that quick!Thank you,E&S

I will give this company 5 stars easily!!Starting with my experience with Dawn, in the office, who was friendly and helpful getting an appointment set up with Jim ODonnell to come and see me about installing a new furnace and humidifier. He quoted me a decent price and we set up an install date asap. The service techs who came to install the furnace arrived timely and were professional. The installation went well, with the final step being installing the thermostat. The service tech also reviewed the operation of the new thermostat with me. Another company, thru ODonnell, came and removed my old furnace. In the end, the installation was done before you knew it. The work area was left clean.I had a good experience with this company and would highly recommend them!Additionally, I called Dawn a few months after my installation asking if they knew a Lennox authorized dealer in York, Pa. for a relative of mine. Dawn looked this information up for me and provided me with a name and phone number of an authorized dealer in that area. Who would do that! This shows they care!

On the hottest day of the summer my air conditioner quit. I called ODonnell before business hours and left a message. A short time later, Jim called me and within couple of hours was at my house fixing the issue. Since my furnace and air conditioner were at least18 yrs old, and my furnace was giving me some trouble last winter, I got a quote to replace both. I was very happy with the price I decided to get them replaced. The installers that came to do the job were very friendly courteous, professional and neat. I am extremely happy with the unit and equally happy with the whole experience. I would highly recommend ODonnell Donnell Heating and Air Conditioning for your next heating or cooling need!

They were wonderful to work with fast and efficient very polite

Needed to have our Furnace replaced so we decided to get AC done as well. The owner came out for the estimate and was very easy to deal with. He didnt try to up-sell us on an overpriced system we didnt need and took the time to explain what the units in our price range offered by comparison to each other. ODonnell offered a great price and threw in some extras that competitors were charging extra for, such as moving the new AC unit away from our deck and patio. Also, the Lennox furnace is very quiet which were thrilled about, we dont even realize its running. Our previous unit was noticeably louder. Very happy.

ODonnell Heating & AC has been awesome to work with. When we bought our house last year we knew we were going to need plenty of HVAC work, which made us nervous. We called around a bit and got a few quotes, then we contacted ODonnell and from that point on the process was great.From the first appointment with Jim, when we got a fair and honest quote, to the installation of our new furnace in the winter, and the installation of our new AC in the spring, they have a been a pleasure to deal with; even the office assistant was helpful in helping us with our rebates. Great communication, great workers, great work and high quality equipment. Cant ask for anything more!

Definitely recommend....great people from the top to bottom!!!

Excellent service! We are very happy with our furnace and air conditioning system. The employees were all professional and answered all our questions. We would highly recommend their services!

ODonnell heating and cooling has done several installations at my home over the last 10 years. The owner, office staff and installation crews are very knowledgeable, courteous, and professional. I would highly recommend ODonnell to any one requiring service on or installation of heating or air-conditioning equipment.

We had issues with our central air. Owner came out the day after we called and fixed the problem. But we needed to get a new AC unit as ours was 18 years old. Scheduled a date for that and the price was reasonable. The two workers arrived earlier than was scheduled (which was great). Very professional and friendly.

So glad I chose ODonnell Heating & Cooling to replace my 25 year old furnace and A/C unit. From the estimate (where I wasnt pitched on anything) with the owner Jim to the end of the installation everything was as I was told it would be. The installers were on time, efficient, cleaned up everything.I would highly recommend them to all of my friends and family.

O’donnell heating and air conditioning is great! Jim the owner himself does the estimates and he is a good honest guy and very easy to deal with, and the three guys that installed my furnace were fun, entertaining and did a really great job with the installation. HIGHLY recommend!

We have been using ODonnell Heating since 1999 and have received excellent service by Jim and his field technicians. I have also spoken with Dawn in the business office who was very helpful and supportive to my busy schedule. They are a top notch company who believes in providing the highest level of customer service. We have told many friends and family about ODonnell as well and all have been satisfied with their service. Kudos to the entire ODonnell Heating family and we offer them our highest recommendation.

I am SO glad I went with them. I had a few estimates and they were so reasonable compared to a few other places that gave me quotes. They were on time, so polite and knowledgable, and got the job done well. I am just so pleased with them- will for sure use them in the future and recommend to friends/family/anyone to get their AC/furnace through them!

I woke up today with no hot water. My previous HVAC company had gone out of business and i needed help!! I called ODONNELL at 8am. I explained my problem and told them I needed a new water heater. I spoke to Dawn who assured me they could help me and told me a new water heater would run quite a bit, around 12 or 1300 depending on the size. That certainly wasnt good news. She arranged to have a serviceman, Justin, come to my house today between 11 and 2. He showed up at 1230. He was so professional and not only inspected my water heater but also checked my furnace which I thoroughly appreciated. He could easily have told me I needed to replace both. Instead, he worked on the water heater, cleaned the filter and got it running again. When he checked my furnace he was kind enough to replace my filter. He told me both were fine and to call if I needed anything again. I couldnt believe it! He handed me a minimal bill and then gave me paperwork and helped me fill it out to send to National Fuel for a rebate. I told him how impressed I was with the company and that I would definitely become a loyal customer for the future. I recommend ODonnell highly. Its very hard these days to find an honest and competent company and today I found both.

We checked around quite a bit and ODonnell had the best price for both a new heater and air conditioner. They were professional and nice, wore the proper PPE, and got the job done well and on time. We also appreciate that they offer a veterans discount.

Last spring, while the temps were still cool enough to require my furnace to run, and while I was working from home due to COVID, I started noticing a bit of a smell while my furnace was running. It wasnt very strong, but enough that it was disturbing to my nose. My forced air furnace at the time was 42 years old, so figuring I probably had a small crack in the heat exchanger allowing some gas to escape, I decided it was time to replace it. Ive never had central air, only two window ACs that I had to bring up from my basement and take back down again every season. Im not getting any younger, and it was starting to get harder to carry those two units up and down the stairs, so I decided to get central AC as well.I brought in 4 different HVAC companies for estimates. I heard about ODonnell from a co-worker and decided that they would be one to bring in. Jim, the owner, was the first one I brought in. The first thing he said to me was that his company would be the least expensive one. I thought that was sort of cocky of him, but after listening to the other three companies, sure enough, ODonnell was the least expensive for the value of the products. I also found out that a friend of mine uses ODonnell for their annual maintenance, and they loved him, so I decided to go with Jim and his company.Jims three man crew came in, removed my old furnace, installed the new furnace, and installed the new AC, all in about 5 hours. Not too shabby. While it was pretty late in the season for using the AC, Ive had a few warm days, and the AC has been great. Ive also now had to use the heat a number of times, and that has been working well too. Im very pleased with my purchase, and will use ODonnell again for my maintenance.

My furnace stopped working recently which affected my central AC. I called O’Donnell and they sent someone out that day. I was given the option of fixing the specific problem or installing a new furnace. I have already had several repairs done over the last few years and knowing my furnace is at least 25 years old I elected to get the new furnace. The installers came a week later and were very polite, friendly and cleaned up well after the job was done.

My furnace gave up the ghost about 15 hours ago. Called and spoke to Jim at ODonnell, he guided me through the options and offered a great price for a replacement unit. The guys who did the work did so quickly and without leaving an unsightly mess. Time and quality of service without an emergency repair fee helped soften the blow of a surprise repair like this. Highly recommend these guys to anyone who require this kind of service.As an addendum, my second HVAC repair was just completed. My furnace went on the coldest day and to maintain the pattern my central air quit on the hottest. Same results: quick, efficient and pleasant to interact with. Thankfully it was just a repair and not a full replacement, but regardless I will use them again. Just hopefully not any time soon. Thanks again ODonnell.

We beat the WNY heat with our new AC and furnace, thanks to the great work of the O’Donnell team. They day of change over went smoothly and the crew was professional and ensured we knew how to operate our new system. Thank you

ODonnell has been our go to HVAC contractor ever since they diagnosed our furnace problem several years ago. When our furnace stopped working this past winter, we decided to replace it. We called ODonnell that morning and they replaced it the same day! Wow, what great service. The crew arrived and maintained all COVID-19 precautions as my elderly father was living in the house. The new furnace and humidifier were up and running that afternoon. The price was quoted from a previous repair call, and was honored by ODonnell when we needed the replacement. We are extremely satisfied with ODonnells quality craftsmanship and excellent service. We plan on using them for our future HVAC maintenance needs and would highly recommend them.

Tim and Nick installed my furnace and ac unit last fall my house was 80 degrees when they left and said it might take all night to get down to 73 degrees. My house was at 72 degrees in 3 hours. I couldn’t be happier with the installation and probably were the best service guys I’ve had at my house. I don’t even think they stopped for lunch. I have no problem recommending O’Donnell to anyone which I already have to a good friend who is also happy with there work.

Excellent company to work with. Very prompt in answering/calling back. Able to schedule reasonable install dates with a week. Installers on time and very polite and respectful.

I recently had ODonnell Heating and Cooling to my home for an estimate and the owner himself came to give the estimate. He was very professional, polite, and on time. After I made my decision to go with ODonnell a date was scheduled for installation. The crew that was sent to the house was very professional and explained things throughly on what they were doing. After they finished one of the installers brought me downstairs and outside to show me what work was done. He then went over how to use my smart thermostat and how to connect it to my homes wifi. I purchased a new Lenox furnace, Lenox AC, and an iComfort thermostat.

In September my husband and I replaced our 47 year old boiler with forced air including AC. We hired ODonnell Heating. I was dreading this process, I am not a project gal! But we knew this was a must have in our new home. Jim was very reassuring everything would go smoothly and recommended a great system. Jim immediately made a favorable impression on us with his ideas during our initial estimate. He was smart and down to Earth and he didnt pressure us. Also the price we were quoted was very competitive. He even came back another time to show me a sample of the floor registers they use to reassure me again. When installation started Tim and Nick immediately put me at ease with their friendliness, knowledge and expert skill level. They went above and beyond.They worked non stop every day, cleaning up thoroughly. They were patient and helpful with any questions we had. They came back and showed us how to set the thermostat. I swear they are miracle workers. The new units are beautiful, and they function wonderfully. I feel grateful to have something this nice in my home. Dawn in the office was also very helpful on the phone during the whole process, it was nice to get a person and not a machine! It was a blessing that we chose ODonnell Heating. 5 STARS

They were super friendly, had a great price and very professional. We got a new furnace, AC, and Humidifier. Great company!

Were very happy with everything that ODonnell has done for us. Everyone is very friendly and professional. The work was high-quality. There is never much of a wait for service. Dawn is always very helpful. We definitely recommend ODonnell!

ODonnell Installed a brand new Lennox Air Conditioner in, as the old one was very old, and on its last leg. The owner came to our home right away on a Saturday to give us an estimate, and was very willing to answer any questions we had, as well as be sure to give us what we wanted and were looking for. The installers who came in to install it were fast, friendly, and efficient. I would definitely recommend ODonnell Heating and Cooling to anyone who is looking for top of the line equipment, and service of course. Very happy with our decision.

Called Jim on Sunday, because I had alternate heating it wasnt urgent. He came on Monday, got furnace working but suggested new furnace, since mine was almost 25 years old. We got both the furnace and AC. The furnace was installed that Thursday, The techs were prompt, and did a great job. The AC wont be done until the spring. We are trully satisfied with the job they did.Thanks

The guys did a great job

They came to our home today to access a problem that we were having with our air conditioning unit. We were told that our unit most likely needed a Freon charge. They technician diagnosed the problem and had our unit up and running in no time. He is one of the best technicians that the O’Donnell Heating & Air Conditioning has ever sent out. Friendly, honest, and extremely knowledgeable.

Jim (the owner) is a great guy and we worked out a great price. I was scheduled for 9/29 but they had a cancellation and completed the work 2 weeks early.

TheBEST. Ill start with Dawn at the front. She knows her stuff. Right on with all my ? Got me a estament in a hour. What can I say Im nice and toasty now& will be cool in summer thanks to a outstanding company. Honest friendly, reliable. They are so not like the others out there that try to Jack up prices. I would give them 10 stars. They installed on a Saturday. Friendly on time, respectable. Jim & Brian Great help. Thank you All for your wonderful service. I will see you in spring for A.C hook up. So happy I found you guys.

Excellent service. Always clean up after themselves. Lennox is a very reliable brand.

I found the place I trust. I know when I call for service they come out ASAP. Had a service call on Saturday morning, my 20+ year air conditioner will cool no more. The owner came out a hour later and gave us a quote for a new unit. He gave us options and the info to make up our mind. The install team with Tim came out today, 3 1/2 hours later its done. Basement was cleaner than I left it. Outside unit in, no mess left around. Tim went over a few points and I signed and I got a cooler house. Thank you.! You can call them in and trust what they tell you. Got my furnace from them 2 years ago, in the cold of winter, I didnt stay cold, they got the unit in, and my family was safe. They have some financial service to help arrange payments if needed. And yes thats him on the billboards.

The owner came right away for an estimate. He was great to work with. The guys replaced my furnace and AC unit together. They were very polite and did a great job. I would highly recommend O’Donnell, great service, great price and great people. Thank you!!!

Awesome service! The owner Jim was out within an hour of me calling. He gave me a no nonsense quote and answered all questions I had. When it came to installation day, the guys showed up on time and completed the install in a few hours. There was absolutely no mess left behind. Another crew came and got the old unit within a day. Would definitely recommend ODonnell to friends and family! Thank you!

Highly recommend ODonnell, knowledgeable technicians that swapped out my furnace in an afternoon for a new Lennox. Reasonable pricing as well with excellent finance plan. I now have a worry free furnace that will last for years!

First off Id like to thank ODonnell Heating & Air Conditioning for the service that was provided. My old furnace was on its last leg and they were very quick with my install. The serviceman came to my house very quick and was knowledgeable and friendly. They also installed my furnace right before we hit a very cold week here. The main reason Im so grateful for this company is because I had another company come over prior to ODonnell that was trying to charge me over double what I ended up paying through this company. They saved me thousands and I didnt feel like they were B.S salesman trying to sell me the highest priced furnace. Install was very quick and my house has been warm ever since. Thank you again and Im highly recommend you to anyone looking for a furnace! - James M -

They came out quick on a Sunday and at a great price, others quoted us 3x’s the price to come out on Sunday. They were able to install a new furnace by Monday at noon. This was the week of the polar vortex in Buffalo! Great full for the fast fair service. They even removed old furnace. Happy to write this review in my warm house today.

Professional, very easy to deal with. Pleasant office staff.

We have a small wall heater in our sunroom that hasn’t been used in over 20 years. ODonnell Heating & Air Conditioning Inc was of great help. They had the unit disconnected at the wall and at the breaker box in no time. They took a look at the breaker boxes and let me know all was well. I highly recommend them.