To Our Customers: We are staying open as we are classified as essential services. Contactless service calls available. We will be here when you need us!

Air Conditioner Repair, A/C Repair & Air Conditioning RepairWilmette, IL, Evanston, IL, Park Ridge, IL, Niles, IL, Chicago, IL & Skokie, IL

Whatever your complaint with your air conditioner, Guardian Heating & Cooling Service is here to help. We specialize in prompt, affordable, and expert repair of all makes and models of cooling systems across Chicago, IL and surrounding areas. As a family owned and operated HVAC business since 1953, we know how to do the job right. We remain committed to your satisfaction and earn your long-term business through convenient scheduling, on-time arrival, tidy job sites, quick turnaround, and lasting solutions. Guardian Heating & Cooling Service is large enough to handle your needs and small enough to care.

Reliable Air Conditioner Repairs

Our factory trained and NATE-certified technicians are outfitted with smart technology to accurately diagnose the cooling system. We tell it to you straight and offer cost-effective recommendations. Recognizing the importance and value of the equipment, we target sustainable solutions and strive to restore efficient, reliable, and peak performance.

Rely on our team for your air conditioning repair services!

Whether you’re faced with minor maintenance issues or complete system failure, Guardian Heating & Cooling Service prepares for the job and is here to serve your best interests. Give our team of fully licensed, bonded, and insured professionals a call at (773) 231-9175. We restore comfort across Lincoln Park, Skokie, Chicago, Niles, Evanston, Wilmette, Park Ridge, and Morton Grove, IL.

Serving Chicago, IL and surrounding areas

Air Conditioner RepairA/C RepairAir Conditioning Repair ∴ Evanston, IL ∴ Chicago, IL ∴ Morton Grove, 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
  • Respicare Oxy-4

    $100.00 Off*


    *Cannot be combined with any other offers. Must present coupon at time of service.

    Expires: 05/31/2021

  • 30% Off Any Service Call and Repair

    For 1st-time customers*


    *Cannot be combined with any other offers. Must present coupon at time of service.

    Expires: 05/31/2021

  • Carrier Cool Cash is back!

    Carrier Cool Cash

    Up to $1,650 in rebates on qualifying equipment

    Please contact Guardian Heating & Cooling Service at 773-763-9224 for more information. Cannot be combined with any other offer. Offer valid 4/12/2021 through 6/30/2021.

    Expires: 06/30/2021

  • Preventative Maintenance Clean & Check

    Regular: $129.00 | Special: $89.95*


    *Ground level units only. Coupon must be mentioned at the time of scheduling and cannot be combined with any other offers. Residential equipment only.

    Expires: 05/31/2021

What our clients are saying

Mo W.

Guardian is a top notch company and John is one of the most outstanding technicians I’ve ever worked with. He’s a trustworthy contractor who explains potential issues as he finds them, and breaks down the process of replacement so that anyone can understand it. I own 12 HVAC systems and I’ve seen more than my share of maintenance. I’ve used Guardian for years and these guys are simply the best.

Keith B.

Have used Guardian for years. Recently had a new furnace and central air installed and I couldn’t be happier. I really trust them because the workers are always extremely knowledgeable, good problem solvers, and they explain everything in terms I can understand. The guys are always very nice, and respectful, also. Highly recommend Guardian Heating & Cooling.

Laurie E.

Just had another great maintenance visit to prepare my old A/C units (2) for the summer. John was thorough and informative. Great job.

I have used Guardian Heating for over 15 years. And my original Rheem furnaces(zoned heat) are still running! I use their maintenance contracts to get reminders, advance scheduling and discounts on annual furnace and A/C checkups/cleaning. They are always quick to respond to a service request. I highly recommend them.

Installing the best and servicing the rest!