Furnace Repair, Heating Service, Air Conditioner Service, Furnace Service & Air Conditioning Installation in Chicago, IL

Since our establishment in 1953, Guardian Heating & Cooling Service has been proudly serving the Chicago, IL community, setting the standard for exceptional HVAC services. As a family-owned and operated company, we are committed to providing top-quality care and personalized service that truly sets us apart from our competitors. Our highly skilled technicians are NATE certified, ensuring that we deliver superior craftsmanship and professionalism in every job we take on.

Expert HVAC Services In Chicago, IL

We offer a comprehensive range of services, including AC and heating repair, installation, maintenance, and replacement. We understand that HVAC emergencies can happen at any time, which is why we also offer 24/7 emergency services. Day or night, you can rely on our prompt response and efficient solutions to restore your comfort and peace of mind. When it comes to your AC installation needs, we partner with leading brands such as Carrier, Aprilaire, Honeywell, and Unico. We believe in providing our customers with the most reliable and energy-efficient cooling systems available, ensuring optimal performance and long-lasting comfort.

Contact Us Today For Service You Can Trust

At Guardian Heating & Cooling Service, we pride ourselves on our commitment to personalized service that exceeds expectations. Our slogan, “We are large enough to handle your needs and small enough to care,” truly encompasses our approach. Your satisfaction is our top priority, and we work tirelessly to customize our solutions to meet your unique requirements. Choose us as your trusted HVAC experts in Chicago, IL. Contact us today to schedule an appointment or learn more about how we can help you.

Services We Provide

Heating Service
Heating Repair
Heating Installation
AC Service
AC Installation
AC Repair
AC Replacement
AC Maintenance
Oil To Gas

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Furnace Repair ∴ Heater Installation ∴ Air Conditioner Service ∴ AC Service ∴ Furnace Service ∴ Chicago, 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.