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Comfort Zone Comfort Zone
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Business Details
38 Years
experience
Emergency
services
Trusted HVAC Services in Chicago Since 1988
Comfort Zone Service has been redefining excellence in HVAC care since 1988, serving Chicago and its southwest suburbs with unwavering commitment to customer satisfaction. As a family-owned and -operated business, we pride ourselves on employing NATE-certified, background-checked technicians who deliver prompt, reliable, and mess-free service. Our A+ rating from the Better Business Bureau reflects our dedication to ethical practices and superior craftsmanship. We specialize in residential and commercial HVAC solutions, including AC repair, furnace installation, water heater services, and indoor air quality improvements. Our one-trip guarantee ensures efficiency, while our price quote and fixed-right guarantees provide transparency and peace of mind.

With a focus on innovation and customer-centric values, we stock a full inventory of parts to minimize service delays and offer flexible scheduling to accommodate your needs. Our Comfort Club Membership provides additional savings and priority service, reinforcing our mission to deliver affordable, high-quality HVAC solutions. From emergency repairs to routine maintenance, we stand by our 100% satisfaction guarantee, ensuring your home remains comfortable year-round. With decades of experience and a deep understanding of local climate demands, we are Chicagos trusted partner for all heating, cooling, and air quality needs.
Services
AC Repair Heating Installation Water Heater Services Indoor Air Quality Commercial HVAC Furnace Repair Boiler Maintenance Ductless Mini-Splits Thermostat Services Comfort Club Membership
Details
  • Year established: 1988
Highlights and features
  • We offer 24/7 emergency HVAC services with prompt response times
  • Our NATE-certified technicians ensure expert installation and repairs
  • We guarantee 100% satisfaction with our A+ BBB-rated service
  • Family-owned since 1988, we prioritize customer needs above all
  • Our one-trip guarantee ensures efficient service without multiple visits
Associations and certifications
  • Better Business Bureau
What people say
Prompt courteous service Great work at fair price Courteous on time Quick response time Highly recommend
Website
Services
AC Repair
Our NATE-certified technicians provide comprehensive AC repair services for residential and commercial properties. We diagnose and fix cooling system issues efficiently, ensuring optimal performance during peak summer months. With same-day service availability and a one-trip guarantee, we minimize downtime while maintaining energy efficiency and comfort standards.
Heating Installation
We specialize in professional heating system installations including furnaces, boilers, and heat pumps. Our experts help select the right equipment for your space, ensuring proper sizing and energy efficiency. All installations come with a fixed-right guarantee and manufacturer warranty protection for long-term reliability and comfort.
Water Heater Repair
Our licensed technicians handle all water heater types including traditional tank models and tankless systems. We offer emergency repairs, routine maintenance, and replacement services with same-day availability. Our service includes pressure testing, leak detection, and efficiency optimization to prevent unexpected failures.
Indoor Air Quality
We improve indoor air quality through advanced filtration systems, UV purifiers, and humidity control solutions. Our services address allergens, mold, and pollutants, creating healthier living environments. We install and maintain systems that integrate with existing HVAC equipment for whole-home air purification.
Commercial HVAC
Our commercial HVAC services include system design, installation, and maintenance for businesses of all sizes. We offer customized solutions for offices, retail spaces, and industrial facilities with 24/7 emergency support. Our energy-efficient systems help reduce operating costs while maintaining comfort standards.
Questions
Do you offer emergency HVAC services?
Yes, we provide 24/7 emergency HVAC services with technicians available for immediate response to critical heating and cooling issues.
What areas do you service?
We serve Chicago and its southwest suburbs including Orland Park, Tinley Park, Mokena, Frankfort, Palos Heights, and surrounding communities.
Are your technicians certified?
All our technicians are NATE-certified, background-checked, and drug-tested to ensure the highest standards of professional HVAC service.
Do you offer financing options?
Yes, we provide financing options for new HVAC system installations and major repairs to help customers manage comfort system investments.
What is the Comfort Club Membership?
Our Comfort Club offers priority scheduling, 10% repair discounts, equipment warranties, and annual maintenance services to ensure optimal HVAC system performance.
How can I schedule service?
Schedule service by calling (708) 403-3434, using our online request form, or texting for immediate assistance with emergency HVAC needs.
Reviews (25)
Patrick OReilly
Jun 01, 2022 Report
I have used Comfort Zone for over 10 years. Every employee from the scheduler Jessica to the HVAC technicians are polite, professional, punctual and competent. Brendan was here today and he has done work for me on other occasions so I knew work would be done correctly. I also deal with lots of contractors in my professional life and Comfort Zone employees are really excellent.
Emil Punter
May 29, 2022 Report
Brenden and Marco installed a new high efficiency Carrier furnace, Aprilaire Humidifier and a Respicaire Air Sanitizer. The dual stage furnace, Aprilaire with its own blower and the Air Sanitizer work perfectly. A beautiful installation. Top quality professionals. Comfort Zone has been our HVAC EXPERTS for several years. Emil and Jill thank you!
Matt Hermann
Apr 16, 2022 Report
Very prompt response. Thoroughly tested the furnace parts to identify failed part. Secured correct part and performed repair. Serviceman Was very knowledgable and competent. Whole process took just 2 hours. Emails and texts sent to keep me informed of progress. Highly recommend! Service: HVAC system repair
Bob Gleffe
Nov 14, 2021 Report
If you're looking for a trustworthy, prompt, good valued company to service your Furnace and HVAC systems, here you go! They have very reasonable service programs, air purification units, as well as whole house humidifiers, have been using them multiple times for different issues For a furnace was installed by another Heating & Air conditioning service, That charged us an arm & A leg for our unit then Made us wait over two weeks to have maintenance on our furnace.
Lisa Zurita
Jul 21, 2021 Report
I had a very good experience with Comfort Zone as did my mother-in-law and one of her friends who recommended the company. Brendan did an excellent job on my installation. He was friendly, very knowledgeable and very good about explaining things to me. The same is true of Jamie in the office who was always friendly and helpful. Also, Chad, who was very nice about answering all of my questions as I was researching AC companies. I would definitely recommend them for your HVAC needs.
Melissa Huhtelin
Jun 28, 2021 Report
Comfort Zone continually keeps you updated as to when the appointment is and when the technician is on the way! Chad was professional and attentive to the issues we were having. Fixed our heating issues that had been going on 2 years! So glad to have his help in the low temps we are experiencing currently and finally have our heat working appropriately! Chad went above and beyond!
Michelle Fadeley
Jun 03, 2021 Report
My husband and I have used Comfort Zone at least three times now. They have serviced our heating, repaired sagging ductwork in our garage, and serviced our AC unit. They are always very responsive, and extremely professional. They are very patient and understanding, great with explaining things without talking down to you. It's also very evident that they don't try to upcharge you or sell you on things you don't need. This company (especially Glen!) knows how to do business right - treat your customers well, and they will become lifelong repeat customers!
Joseph Salerno
Feb 25, 2021 Report
Comfort Zone has been great to deal with. They have been my go to HVAC company since 2017. I regularly have them service my HVAC units every year and just recently had them install AC for my second floor. Very happy with their service would recommend them to anyone. Service: Install AC
Dave L.
Feb 17, 2021 Report
I have used them multiple times in the last two years for general maintenance and replacement of an AC unit. They have always been kind, responsive, professional, and trustworthy. They truly set the standard for exceptional customer service. Chad and Glen have both been to our homes to do various maintenance. Each time, they were courteous in giving us notifications for their arrival, and were very punctual.

I never felt like they were in a rush to leave and they took their time making sure everything was done right, and that I was 100% satisfied with the job with all of my questions answered. I can't imagine using another company for my HVAC and heating needs. You guys are awesome!
Carole Borrmann
Dec 21, 2020 Report
Cannot say enough about the ComfortZone Service. Their techs, Brendan & Chad, arrived promptly. They not only repaired my furnace issues, cleaned the furnace, & discovered a problem that I was unaware of that was causing problems. After repairing the issues; they did not try to sell me anything or upgrade anything - that was a bonus, as other repairmen I've had in the past, always tried pitching for more money. They were excellent & I would recommend ComfortZone to everyone I know. Great Company!
Tom E.
Sep 24, 2020 Report
Great job as always! On time, in and out. Best part is proactive, no breakdowns when you need heat or AC.
Was F.
Jul 20, 2020 Report
The owner of this company is a total idiot. He refuses to wear a mask. I wouldn't trust any of his services if he can't understand that a mask can protect people around him.
Jessica F.
Jun 21, 2020 Report
Our AC went out the night before we had to show our house. I am pregnant and we have a 2 year old. I was freaking out because I didn't think comfort zone would be able to help us in time. I was able to reach them via messenger at 10:30p at night and fill them in on the situation. They said they would get someone to us at 10am the next morning. In the morning I reached out to see if anyone could get to us earlier as our first showing was at 10am. Glen showed up at 9:15a and by 10:15a our AC was fixed! We were so grateful! Would absolutely recommend! We have had Chad work at our house in the past as well and he is very helpful as well.
Patrick OReilly
Dec 23, 2019 Report
Ive been using Comfort Zone for years. They do great work at a fair price and have been extremely responsive for both routine maintenance and emergency service. I highly recommend them
Aimee Z.
Aug 31, 2018 Report
Just had Comfort Zone install a new air conditioner and coil. Matt was very helpful with our estimate and took very good care of us. The guys came out today and installed everything in a little over two hours. Very efficient, professional and reasonably priced. I would recommend and hire them for any of our hvac needs in the future. Thank you!
Ryan Gold
Oct 20, 2017 Report
Excellent and professional customer services. Highly recommended for those who need their services done promptly and efficiently.
Jenn B.
Aug 31, 2017 Report
Our air conditioner went out and I called Comfort Zone. They were able to arrive quickly, diagnosed and then fixed the problem within a half hour. Recommended.
Ama M.
Jul 06, 2017 Report
Our A/C went down on this very hot day. I found Comfort Zone on yelp and the reviews were great. Gave them a call and they came right out. The repair cost was reasonable and he had it fixed in minutes! He was very nice and a pleasure to do business with. My kids even said, "Thank you, Chad" in unison as he left, lol. They were melting into the couch. They just might live to see another day, thanks to Chad.
Barb R.
May 12, 2017 Report
I called Comfort Zone because my furnace is under warranty through the manufacturer. From the list of people I could call through the manufacturer Comfort Zone was the closest to me. I was very happy with the service they provided. They were on time, very courteous and professional. We will definitely be using them from now on... I highly recommend them and will be referring them to anyone who needs a good heating and air-conditioning repair service!!!
Jim W.
Feb 07, 2017 Report
I called Comfort Zone based on the reviews here.and am disappointed. Let me first say that the service, courtesy and professionalism deserves high marks. However, the cost to me seemed exorbitant. This was a non-emergency call to service my clogged Aprilaire humidifier. The fix was a minor hose part. The bill was $218.00 Yikes!
Marie M.
Jun 14, 2016 Report
Great Company! We had some issues with our ac units and Glen came out and he did a thorough inspection. Glen was great he walks you through everything that he's doing and gives you great detailed recommendations for maintenance. Very professional, respectful, courteous, and honest. I would highly recommend them to family and friends.
Kellee L.
Apr 18, 2016 Report
Five stars for Comfort Zone! They're extremely knowledgable, friendly and easy to work with. Highly recommend.
Kim Meyer
Report
Furnace went out. Tried several different companies some said it would take days to come, by the way it was freezing outside/inside. Called Comfort Zone and technician called me back in 5 minutes and showed up at my door in 15 minutes. Problem diagnosed and fixed very quickly, luckily it was just the ignitor! Glen the technician was great. Would definitely use again.
Marcie Fredricks
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Absolutely fantastic.They are very nice very fair priced and very helpful.Professional prompt courteous service. I am more than satisfied with everything.Would like to recommended
Kenneth Fregeau
Report
I was amazed at the prompt response and immediate service that comfort zone provided!There were no selling tactics or technician drama just an honest repair and details of what they did and what to expect of our 15 year old furnace.Glenn and his son were very courteous ,and informative .A extremely pleasant contractor experience! Wish all businesses were this good!