A Tradition of Excellence for over 71 years in Chicago and surrounding areas!

Call today to schedule a service call or to request a free estimate on new equipment. Open Monday-Friday.

Save Over $10,000 $99 Preventative Maintenance Special Financing Available

4.9

Based on 653 reviews

Heating

Air Conditioning

Financing

Maintenance

HVAC Contractor Lincoln Park, IL | Air Conditioner Repair Skokie, IL | AC Company Chicago, IL

Family owned and operated, Guardian Heating & Cooling Service specializes in residential and commercial HVAC services in Chicago, IL and surrounding areas, providing customized solutions to everyday challenges. We are large enough to handle your needs, and small enough to care. Contact us at 312-818-2840, speak with a knowledgeable and friendly representative of our staff, and let us help you improve the comfort, health, and control over your indoor environment. Through industry-leading equipment and skilled workmanship, we deliver results you can trust.

We have now opened a new office in Northbrook so we can better serve our Northshore customers.

Expert Heating & Cooling Services & Repairs

Guardian Heating & Cooling Service offers a wide range of opportunities to enhance energy efficiency and maximize heating/cooling system reliability. Whether you’re considering new installation, retrofit, maintenance, or repair of anything from radiant floor heating to a furnace, boiler, heat pump, central cooling, snowmelt system, and much, much more, our factory trained and certified technicians are up to the task.

AC Service, HVAC Installation, Air Conditioning Installation, Air Conditioner Repair & AC RepairLincoln Park, IL, Skokie, IL, Chicago, IL, Niles, IL, Evanston, IL & Wilmette, IL

Trust in our team for all your HVAC repairs, maintenance & installations in Chicago, IL and surrounding areas!

We show up right on time, take pride in a job well done, and have developed the best maintenance plan on the market. For exceptional residential and commercial HVAC services, Guardian Heating & Cooling Service is the right choice for unmatched value throughout Lincoln Park, Skokie, Chicago, Niles, Evanston, Wilmette, Park Ridge, and Morton Grove, IL. Contact us today for your local HVAC experts today!

HVAC Contractor ∴ AC Company ∴ HVAC Company ∴ AC Contractor ∴ Niles, IL ∴ Evanston, IL ∴ Lincoln Park, IL

Marcy Dotson

Guardian heating and cooling is a great company. They have serviced us for over a year and we continue to get good service every time. keep up the good work.

Josephine Osowski

Martin & Brian did an excellent job installing my new furnace & water heater. They arrived on schedule & kept me informed during the process. The entire area was cleaned and all trash removed before they left.

James Spillane

Great and expert service as always from Guardian. David was wonderful. Brian and Martin who did the installation were amazing, did a great job, did it with care and courtesy, and ensured everything worked before they left. Outstanding!

Robert H

Great place and Sergio Morales solved the issue. Plus is professional and helpful. New issue Sergio Morales was is extremely helpful sharp and proficient.

Elizabeth Pollock

I have used Guardian Heating and Cooling for regular maintenance and any major and minor heating and cooling issues at my home. The company representatives are consistently professional, responsive, and efficient.

John Mueller

I had to replace my old forced air gas furnace. Guardian's project manager Dave was great, he listened to my concerns and helped pick a new furnace with heat exchanger and air conditioning system. Miguel and Brian did a great job of installing the new system, hard working and conscientious. I can't say enough, thanks to everyone who helped!

Daniel Kim

This review is almost 2 years late! But I figure better late than never, and I have 2 years of data to back my review. We have radiant floor heating and were warned when we bought our house that it could be challenging to find people who know how to work with it. They were right, as we discovered when our obsolete hybrid boiler/tank needed replacing. One company ghosted me. When I called Guardian, Alen and Peter came and looked at our heating system. They identified what they thought needed to be done, but admitted that our system was a bit unique & complicated. So they called in the boss Jasper, who took a look, knew exactly what he was seeing, confident in what needed to be done (confirming what Alen and Peter had told us). I was impressed! It took Josh/Chris? and him team 3 long days to do the work, and the result was complicated work of art. After installation, there was a part-compatibility issue that needed addressed, which was taken care of. And over a year later, we realized that one of our eight heating zones wasn't working properly. Taso visited a few times to fix that. The project and boiler were not cheap. Honestly, we were in shock when given the estimate. But it was at the peak of the supply-chain issue; and the work was, as noted, very complicated; and the boiler is very modern and super-efficient. It was all worth it. Guardian was always very accessible and responsive, and never hid or made excuses when a few fixes were needed. And having confidence that Guardian knows what they're doing, do great work, and stand behind their work, means everything. 3/1/2024: Update: I have Guardian’s maintenance plan, which covers an annual checkup. Sergio and Burt were super friendly and professional, did an inspection, replaced a broken gasket, and cleaned the system. Much appreciated!

Jenna Nommensen

Luis was very thorough and did a great job. Thank you!

Bill Murphy

Great people to work with.

HVAC Contractor Lincoln Park, IL | Air Conditioner Repair Skokie, IL | AC Company Chicago, IL

Expert Heating & Cooling Services & Repairs

AC Service, HVAC Installation, Air Conditioning Installation, Air Conditioner Repair & AC RepairLincoln Park, IL, Skokie, IL, Chicago, IL, Niles, IL, Evanston, IL & Wilmette, IL

Trust in our team for all your HVAC repairs, maintenance & installations in Chicago, IL and surrounding areas!

HVAC Contractor ∴ AC Company ∴ HVAC Company ∴ AC Contractor ∴ Niles, IL ∴ Evanston, IL ∴ Lincoln Park, IL

HVAC Contractor

HVAC Company

AC Contractor

AC Company

Lincolnwood, IL

Franklin Park, IL

Melrose Park, IL

Harwood Heights, IL

Oak Park, IL

River Forest, IL

Schiller Park, IL

Elmwood Park, IL

River Grove, IL