Air Conditioner Maintenance, Air Conditioning Service & Air Conditioner ServiceWilmette, IL, Morton Grove, IL, Park Ridge, IL, Skokie, IL, Evanston, IL & Lincoln Park, IL

Installing the best and servicing the rest!

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.

Air Conditioner Service in Skokie, IL | A/C Service Wilmette, IL | Air Conditioning Service Lincoln Park, IL


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 in Chicago, IL and surrounding areas!

Call Guardian Heating & Cooling Service at 312-818-2840 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

Air Conditioner ServiceAir Conditioner MaintenanceA/C ServiceAir Conditioning Service ∴ 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
  • $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.

  • Free 2nd Opinion

    773-763-9224


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

  • 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: 10/31/2022

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

    $500.00 Off*

    773-763-9224


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

    Expires: 10/31/2022

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!
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Installing the best and servicing the rest!