I have called them on two separate occasions and both times they were here quickly to address my AC issue. I find everyone at Alltech to be very professional and what I liked most was that they were willing to try simple fixes before suggesting costly replacements. The last time that they were here my unit was leaking inside and instead of suggesting to replace the coil, they cleaned it out along with a drainage clog. I have worked with other companies in the past where they suggested replacement before trying to repair what I had. I am very satisfied with the service I received!

Communication, expertise, prompt service, low pricing.I have used Alltech HVAC for many years. Always consistent. I would highly recommend

Alltech is the best! They do great work for a great price. John, Emily and the team are all super responsive, knowledgable, professional and personable. They saved us when our homes boiler died in zero degree weather and when our HVAC needed replacing at our rental. I will never go anywhere else for our HVAC needs!

Alltech HVAC replaced my furnace and central air with in a day of my accepting their estimate, I was given this prioritized service due to my AC not working and the outside temperature was in the mid 80’s. I had gotten two other estimates from other contractors and was given a window of 7 to 14 days for installation.This was my first time using Alltech and they treated me like family, could not be more pleased.Highly recommend

Installed new a/c and air handler. Was pleased with everything. I live in a condominium complex with the air conditioner on the roof they even walked around the roof when they were done and picked up screws and bolts left by other air conditioner companies

We had Alltech HVAC out to replace a 23 year old furnace and a broken AC unit.The AC unit needed a new compressor and was not worth replacing due to the age so we had Alltech HVAC come out.They were prompt responses on the phone and through email for scheduling.They gave us a reasonable quote for Amana units with excellent warranties and reviews.We decided to get the units installed.With the current lock down state they came out with masks and gloves and used all precautions necessary.They removed the old furnace and AC without any damage to the home and installed the new units the same day.They worked with the city inspector at Rolling Meadows the same day as well. I should have mentioned that they pulled the permits and worked with the city through the whole process.The AC unit needed to be charged since it was not above 70 degrees. Once temperatures were at that level they came back out, charged the unit and worked with the city for the final inspection.Excellent job and I would highly recommend them for any heating and cooling work you need.Honestly, Im glad I finally found a reliable and responsible company to work with.

These guys are the best! Get it done right the first time. I wouldnt call anyone else for my HVAC needs. Highly recommended.

Fantastic experience with this company. Responsive, honest, polite and professional. They assisted with removal of a furnace and water heater for a flood mitigation system to be installed and the process was flawless. Dump the big name companies and support local 👍🏻👍🏻

Great & super-prompt service. Awesome product & fair prices! Reliable professionals with good knowledge of product. Highly responsive and Nicest indivudual to work with! Highly recommend them!

The two technicians I worked with were awesome, friendly, and efficient. Scheduling an appointment was quick and easy, too. Great value for the cost. Thanks!

John’s service is outstanding. I had 3 different companies look at my 40 year boiler. He gave me 2 different options to fit different budgets. I decided to replace to replace the boiler him and glad I did.

Joe from Alltech came out this morning to troubleshoot and repair a leaking system on our new home. He was truly professional and found the issue almost immediately. We could not be happier with the service recieved and would reccomend Alltech to anyone in the Chicago Area!

Alltech is the best HVAC company on the Northwest Side of Chicago, I used two companies before finding Alltech and I will never use a different company. Prompt service, extremely fair prices and no fee to show up to your house. When someone from Alltech comes to your house for a job not only do they do the job they came in for but also check on all the work they did for you in the past. Great people and a great company.

Alltech HVAC was unbelievably responsive and nice to boot. We needed someone competent fast, at 11PM at night no less. They responded and had our problem fixed first thing the next morning. Wonderful service -- could not have asked for better service.

I have been dealing with this company a few years and they have always treated me right and are very responsible.

Great and fast service. The tech was very polite and knowledgeable. I will use this company in future for sure!

GREAT quick service...Fair reasonable rates...Pleasant & polite to deal with!All that AND a senior discount!

Our A/C went out and they were able to fit us in last minute! My service technician was knowledgeable and professional. Everyone I spoke to at the company was super friendly. I would definitely recommend them!

The Alltech team has been taking care of my family and I for a couple of years and I have only received the best service and competitive prices. I am happy to have a reliable HVAC company I can trust.

Joe and his team are top notch. I messaged joe at 645 am on a Monday and I had a rep out to check my ac unit out by 730am the same day. Got me all fixed up and I couldnt be happier about it. I operate a gym and it needs to be chilled. Joe and his team at alltech are very professional and patient. Wouldnt go any place else . Thanks guys .

Prompt, knowledgeable and reliable professionals. Highly recommend them. Nicest people you’ll ever meet!

Great work and great service! Very reliable and will highly recommend them.

Great company with very responsive and knowledgeable employees! Would highly recommend to any one looking for HVAC Service, Repair or Replacement.

Professional and knowledgable. We’re happy with our new water heater!