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Featured Jobs

Boiler Replacement

This was a small commercial job for a nursing home in Chicago. We removed 2 boilers that were over 50 years old, inefficient and obsolete. We replaced them with 2 modulating condensing high efficiency IBC boilers. Their ROI should pay for the job in 2 to 3 years.

Serving Chicago, IL and surrounding areas

Serving Northbrook, IL and surrounding areas

Shield of Protection Maintenance Plan

30% Off Equipment Repairs
Priority Service

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Financing Options

Finance your service, repair or installation costs, subject to approved credit.

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We offer convenient financing with an easy application process in a multitude of options! Get special financing for 12 months, 36 months, 60 months...even 132 months available with approved credit. Call us NOW for details.

HVAC Repair ∴ Air Conditioning Service ∴ AC Installation ∴ AC Repair ∴ Heating Service ∴ Chicago, IL ∴ Northbrook, IL ∴ Morton Grove, IL

Guardian Heating & Cooling Service, Inc. BBB Business Review

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
  • $2,500 Off

    Ductless split system.

    Restrictions Apply. Cannot be combined with any other offers. Not valid with any other offers. With this coupon. Not valid on prior purchases. Coupon Must be present coupon at time of service.

    Expires: 04/30/2025

  • $50.00 Off

    Service call with repair.

    May not apply to equipment located in the crawl spaces or attics difficult to access. Offers cannot be combined with any other offers or previous purchases. See representative for all details that apply. Must present coupon for discount.

    Expires: 04/30/2025

  • No Service Fee

    On a paid repair.

    May not apply to equipment located in crawl spaces or attics difficult to access. Not valid on prior purchases. See dealer for details.

    Expires: 04/30/2025

  • Up To $1,625 Off

    *Restrictions apply. Cannot be combined with any other offers. Must present coupon at time of service. Not valid on prior purchase. See dealer for details. Expires 4-30-25

    Expires: 04/30/2025

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