Air Conditioning Maintenance, HVAC Service, Air Conditioner Repair, AC Installation & Boiler Service in Evanston, IL

More often than not, the weather in Evanston, IL presents a challenge. One thing is always certain. Guardian Heating & Cooling Service takes the very best care of your comfort. Specializing in every aspect of temperature control and air quality, we champion energy efficiency, cost savings, reliability, and sustainability. Give us a call at 312-818-2840, explain your needs, and we’ll handle the rest to your total satisfaction.

Top Quality Heating & Cooling Services

Are you looking for residential or commercial HVAC system installation? Guardian Heating & Cooling Service specializes in quality and innovation. We are a Carrier Factory Authorized Dealer. Our techs are NATE-certified, strenuously trained, and current in cutting-edge heating, cooling, and IAQ technology. We cater to every demand with exceptional results and ensure affordability through convenient financing.

For all your HVAC repairs & installations in Chicago, IL and surrounding areas, call the Guardian Heating & Cooling Service team!

If you’re considering the many, many, many benefits of preventative upkeep, we highly recommend our Shield of Protection Maintenance Plan (SPP) for best care of all makes and models of equipment. Enjoy priority service, 30% discount on equipment repairs, and no signup or cancellation fees. For concerns, don’t wait to schedule repairs with us and restore peak performance. Guardian Heating & Cooling Service is known for our prompt, professional, and effective service across Lincoln Park, Skokie, Chicago, Niles, Evanston, Wilmette, Park Ridge, and Morton Grove, IL.

AC Repair in Evanston, IL | Boiler Repair

AC Service
AC Repair
AC Installation
AC Replacement
AC Maintenance
Heating Installation
Furnace Repair
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Boiler Repair ∴ AC Installation ∴ HVAC Service ∴ Air Conditioner Repair ∴ Boiler Service ∴ Evanston, 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.