Commercial HVAC Repair, Commercial HVAC Service & Commercial Heating MaintenanceWilmette, IL, Lincoln Park, IL, Skokie, IL, Park Ridge, IL, Evanston, IL, Morton Grove, IL, Chicago, IL, Niles, IL

Family owned and operated, Guardian Heating & Cooling Service provides expert commercial HVAC services throughout Chicago, IL and surrounding areas. We are large enough to handle all of your commercial needs, but small enough to care. While we have the manpower and resources to deliver prompt response and resolve any challenge, we personalize our approach to best serve your goals. We respond to the exact requirements of your facility, developing a strategy and promoting quality equipment to maintain perfect comfort while optimizing safety, energy efficiency, air quality, and the management of day-to-day operations.

Professional Commercial Heating & Cooling Services

Our NATE-certified team is factory trained and highly experienced in all aspects of commercial HVAC, including new design/installation, equipment upgrades, seasonal maintenance, and skilled repair of all makes, models, and styles of commercial HVAC systems. Our in-house sheet metal fabrication shop sets us apart, allowing us to manufacture our own custom ductwork. We are fully licensed, bonded, and insured, and protect our commercial clients with the best maintenance plan on the market. Call us at (708) 628-5443 to schedule commercial HVAC services anywhere across Lincoln Park, Skokie, Chicago, Niles, Evanston, Wilmette, Park Ridge, and Morton Grove, IL.

Serving Chicago, IL and surrounding areas

Commercial Heating MaintenanceCommercial HVAC RepairCommercial HVAC 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