Licensed, Bonded & Insured for your Peace of Mind!
Emergency? 24/7 service - Click Here! 2227 W Fullerton Ave Chicago, IL 60647

The first step in optimizing the performance of your light commercial HVAC system in Chicagoland is calling (312) 313-8411. You’ll never get an automated voice. At Chicago HVAC Repair Doctor, we always answer and never fail to provide a successful and sustainable solution. Passionate about supporting our community and local business owners, our priority is completing the best job possible, every time.

Expert Light Commercial HVAC Services

No matter the challenge, Chicago HVAC Repair Doctor is ready to roll up our sleeves and work hard. We truly get to know our clients to better achieve immediate and long-term goals. Our techs adhere to our mission of transparency, honestly answering questions, filling you in on all options, and helping you determine the right course of action. We bring something extra to every job. We truly care about your satisfaction with all aspects of our performance.

Chicago HVAC Repair Doctor maintains qualification as a Rheem Pro Partner and offers free quotes on new equipment. From boilers and commercial packaged units to sheet metal fabrication requirements, all installation projects are carried out quickly, in an organized fashion, and to proper protocols. We even send out an email when you’re due for maintenance to ensure the fulfillment of warranty obligations. We go above and beyond.

Commercial Heating & Cooling System Installations & Repairs

As a family-owned operation, Chicago HVAC Repair Doctor recognizes the need for an HVAC supplier you can totally trust. We’re here to exemplify the role. We’ve designed our maintenance plan to maximize system reliability, efficiency, and longevity and include lots of perks to make it easier for you. For repairs, know that we won’t ever leave you without a resolution. Chicago HVAC Repair Doctor also simplifies things with appointment confirmation the day before and text/email alerts when we’re en route. Chicago HVAC Repair Doctor is available to you 24/7, 365 days a year, handling light commercial HVAC emergencies across Chicago, Hillside, Oak Brook, Elmhurst, Westchester, Oakbrook Terrace, and Melrose Park, IL.

Customer Reviews

Our customers speak for us

Joshua and Paul were very professional and showed up on time. Josh walked me through my entire inspection and answered all the questions I had for him. Customer service has also been excellent, which is a huge plus! Prices are fair, and I highly suggest using this company for any heating or HVAC needs.


Amazing customer service. We had an emergency and they came out very quickly. I think we were right outside of their perimeter but because it was cold and our heating went out they sent someone to fix the issue. Alan was our technician. He is very knowledgeable, efficient, and very straight forward with the issue. I really recommend this company and look forward to working with them in the future.


Highly recommend Chicago HVAC Repair Doctor, Inc. I recently moved into a condo, and had AC maintenance done. The Chicago HVAC Doctor team was incredibly responsive from the first scheduling call. They provided text updates the morning of the scheduled maintenance, and took the time to walk me through every step of their process. I will be calling them again in the fall for furnace maintenance!

Just some of our accolades:

Commercial HVAC

Commercial Heating and Cooling

Melrose Park, IL

Oak Brook, IL

Elmhurst, IL

Hillside, IL

Oakbrook Terrace, IL

Chicago, IL

Westchester, IL