Commercial HVAC Repair, Commercial Heating Maintenance & Commercial Boiler ServiceWilmette, IL, Niles, IL, Park Ridge, IL, Skokie, IL, Evanston, IL & Morton Grove, IL

Commercial Boiler Service in Chicago, IL | Commercial HVAC Service Evanston, IL | Commercial Heating Maintenance Park Ridge, 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 312-818-2840 to schedule commercial HVAC services anywhere across Lincoln Park, Skokie, Chicago, Niles, Evanston, Wilmette, Park Ridge, and Morton Grove, IL.

Commercial HVAC Service ∴ Commercial Boiler Service ∴ Skokie, IL ∴ Wilmette, IL ∴ Skokie, IL ∴ Chicago, IL

Serving Chicago, IL and surrounding areas

Commercial HVAC RepairCommercial Heating MaintenanceCommercial HVAC ServiceCommercial Boiler Service ∴ Evanston, IL ∴ Lincoln Park, IL ∴ Park Ridge, 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
  • Mini-Split(Ductless) Installation

    $250.00 Off*

    773-763-9224


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

    Expires: 12/31/2022

  • Free 2nd Opinion

    773-763-9224


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

  • $99 Preventative Maintenance

    773-763-9224


    *Scheduling restrictions may apply. Limited spaces available. Ground-level residential equipment. Cannot be combined with any other offers. Must present coupon at time of service.

  • Respicare Oxy-4 Air Purifier

    $100.00 Off*

    773-763-9224


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

    Expires: 12/31/2022

What our clients are saying

Maggie HaysMaggie Hays
21:05 09 Mar 22
I called Guardian Heating & Cooling because my Nest had lost power and my furnace wouldn't turn on. Sergio arrived within 1hr and quickly diagnosed & addressed the issue. He was very communicative and helpful throughout the whole process; I will definitely be working with Guardian again.
Paul APaul A
21:18 24 Feb 22
When our heat went out during a particularly cold winter night, Guardian was very responsive in getting our furnace repaired same day. We were able to credit our repair expenses towards a new furnace to replace our aging system - great!Rory and Akeem did a great job installing our new furnace. They had great attention to detail and took the time to do the job right. We am very satisfied with the install.Everyone we interacted with from Guardian was polite and courteous. We would recommend them and plan to use them in the future!
james meissjames meiss
22:31 22 Feb 22
Very courteous and professional technicians. Took them me to make sure everything was in good working order before leaving. Also gave good tip for furnace filter product. I highly recommend Guardian!
Beth SkonyBeth Skony
00:27 16 Dec 21
I just had a great service call on my boiler with Tyler from Guardian Heating. He was extremely thorough and professional, and he took extra time to answer my questions about my system and the possible addition of a smart thermostat. I’m happy to be with such a responsive and caring company after having some unpleasant experiences with a previous heating maintenance company. I contacted Guardian a year ago for a second opinion (based on a referral from another satisfied customer), and ultimately I needed a whole new boiler system and rerouting of some of the piping. They had the new equipment installed within a couple days of the diagnosis, and the installation techs and Jasper, my sales advisor, were wonderful every step of the way. I look forward to working with Guardian for many years to come!
Becca RichardsBecca Richards
22:57 09 Dec 21
Guardian is very reliable and provides wonderful customer service. Sergio was recently at our home to manage a humidifier and heating issue. He was prompt and respectful. He was in a mask and immediately put booties on. He was careful in our home. He assessed the issue and communicated clearly is plan for fixing it. He was efficient and very clean. I would happily have him back anytime. Thank you so much!

Installing the best and servicing the rest!