Air Conditioner Service, Air Conditioner Maintenance & Air Conditioning ServiceEvanston, IL, Wilmette, IL, Niles, IL, Skokie, IL, Morton Grove, IL, Chicago, IL, Park Ridge, IL, Lincoln Park, IL

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.

Top Quality A/C System Service

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!

Call Guardian Heating & Cooling Service at (708) 628-5443 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 Lincoln Park, Skokie, Chicago, Niles, Evanston, Wilmette, Park Ridge, and Morton Grove, IL.

Serving Chicago, IL and surrounding areas

A/C ServiceAir Conditioner MaintenanceAir Conditioner Service

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

$89.00 Preventative Maintenance Cleaning on a Residential Furnace, A/C, or Boiler

Regularly $109.00

(708) 628-5443


No ladder setup. Cannot be combined with any other offers or discounts.

Expires: 09/30/2019

$100 Off a Carrier Furnace, A/C, or Boiler

(708) 628-5443


Cannot be combined with any other offers or discounts.

Expires: 09/30/2019

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.

We service all makes and models