Air Conditioner Service, Air Conditioner Maintenance, Air Conditioning Service & A/C ServiceChicago, IL, Northbrook, IL, Lincoln Park, IL, Skokie, IL, Glenview, IL & Highland Park, IL

Installing the best and servicing the rest!

Shopping for the best maintenance plan on the market? Look no further. Family owned and operated, Guardian Heating & Cooling Service has developed a convenient, cost-effective service package to simplify the process and ensure results. We accommodate your busy lifestyle, cause no disruption to your home, and there’s no sign-up or cancellation fee.

AC Repair Services in Chicago, IL | Air Conditioner Maintenance Northbrook, IL


Take advantage of priority scheduling, and let our NATE-certified, factory trained professionals improve the efficiency and capacity of any make or model of cooling system by up to 25%. We handle all the essential tasks to maximize equipment reliability, lengthen service life, and reduce operational costs. Plus, you’ll enjoy enhanced comfort, healthier air quality, and lower sound levels.

Keep cool with regular air conditioner maintenance needs in Chicago, IL and surrounding areas!

Call Guardian Heating & Cooling Service at 312-818-2840 to learn more about this tremendous opportunity. Offering service across Chicago, IL and surrounding areas, we are large enough to handle your needs and small enough to care. Our team is fully licensed, bonded, and insured. Taking advantage of industry-leading technology, we effectively troubleshoot the cooling system to catch and resolve any issues before they graduate into more costly repair. We optimize the performance of your air conditioner to ensure your satisfaction and complete comfort, no matter what the weather brings. Guardian Heating & Cooling Service delivers exceptional service, value, and rewards throughout Chicago, Northbrook, Lincoln Park, Skokie, Glenview, Highland Park, Wilmette, Niles, Morton Grove, Glencoe, and Winnetka, IL.

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Serving Chicago, IL and surrounding areas

AC Repair ServicesAir Conditioner Service ∴ Highland Park, IL ∴ Glenview, IL ∴ Winnetka, IL

Save today with our special offers

You love getting good deals, so here are some coupons to show our appreciation for considering us for your next heating or cooling installation or repair.

Special Offers
  • Financing Special 0% financing for up to 60 months

    With Approved Credit. On Qualifying Systems only. Call Amber for details. Expires 12-31-24.

  • $1,500 off New System Installations

    Valid with Qualifying Purchase. Subject to change. See dealer for details. 6-30-24.

  • $500 off New Air Conditioner Installation

    Valid with Qualifying Purchase. Subject to change. See dealer for details. 6-30-24.

  • $50 off Service Repair

    Not valid with any other offers or on prior purchases. Not valid on Diagnostic without repair. Present coupon at time of service. See dealer for details. Expires 6-30-23.

What our clients are saying

Marcy Dotson
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
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
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
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
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
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
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
Jenna Nommensen
Luis was very thorough and did a great job. Thank you!
Bill Murphy
Bill Murphy
Great people to work with.

Installing the best and servicing the rest!