Air Conditioning Maintenance, AC Service & Air Conditioner RepairEvanston, IL, Chicago, IL, Park Ridge, IL, Morton Grove, IL, Evanston, IL & Lincoln Park, IL

More often than not, the weather in Evanston, IL presents a challenge. One thing is always certain. Guardian Heating & Cooling Service takes the very best care of your comfort. Specializing in every aspect of temperature control and air quality, we champion energy efficiency, cost savings, reliability, and sustainability. Give us a call at (773) 231-9175, explain your needs, and we’ll handle the rest to your total satisfaction.

Top Quality Heating & Cooling Services

Are you looking for residential or commercial HVAC system installation? Guardian Heating & Cooling Service specializes in quality and innovation. We are a Carrier Factory Authorized Dealer. Our techs are NATE-certified, strenuously trained, and current in cutting-edge heating, cooling, and IAQ technology. We cater to every demand with exceptional results and ensure affordability through convenient financing.

For all your HVAC repairs & installations in Chicago, IL and surrounding areas, call the Guardian Heating & Cooling Service team!

If you’re considering the many, many, many benefits of preventative upkeep, we highly recommend our Shield of Protection Maintenance Plan (SPP) for best care of all makes and models of equipment. Enjoy priority service, 30% discount on equipment repairs, and no signup or cancellation fees. For concerns, don’t wait to schedule repairs with us and restore peak performance. Guardian Heating & Cooling Service is known for our prompt, professional, and effective service across Lincoln Park, Skokie, Chicago, Niles, Evanston, Wilmette, Park Ridge, and Morton Grove, IL.

Boiler Repair in Chicago, IL | Boiler Service Wilmette, IL | AC Service Evanston, IL

Serving Chicago, IL and surrounding areas

AC InstallationAir Conditioning MaintenanceHVAC ServiceAC ServiceBoiler Service ∴ Niles, IL ∴ Evanston, 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
  • 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 9/6/2021 through 11/19/2021.

    Expires: 11/19/2021

  • $89 Clean and Check


    *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.

  • Matching Infinity System (Furnace, A/C, Stat)

    $500.00 Off*


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

    Expires: 09/30/2021

  • Mini-Split(Ductless) Installation

    $250.00 Off*


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

    Expires: 09/30/2021

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!