Heating Service, AC Service & HVAC Service in Harwood Heights, IL

Guardian Heating & Cooling Service has elevated standards of HVAC services since 1953. We’ve built long-term relationships with home and business owners in Harwood Heights by providing straightforward, sustainable, and successful solutions to every type of heating and cooling challenge. Family-owned and operated, we take pride in the extra steps, attention to detail, and superior value we bring to every job.

Trusted HVAC Services in Harwood Heights, IL

Our extensive expertise and experience cover residential and light commercial HVAC installation and replacement, sheet metal fabrication, duct cleaning, and the best maintenance plan on the market. Our proactive heating and air conditioning upkeep extends the lifespan of equipment and optimizes reliability, capacity, and efficiency levels. Schedule a tune-up from Guardian Heating & Cooling Service and protect your investment.

Contact Us Today At 312-818-2840

A call to Guardian Heating & Cooling Service is answered by NATE-certified, factory-trained, licensed, bonded, and insured professionals. We handle AC repair, boiler repair, furnace repair, and all types of problem-solving with any make or model. Combining our background with the leading technology, tools of the trade, and huge inventory of essential parts, we focus on quick turnaround and lasting satisfaction.

Service We Offer In Harwood Heights, IL

Heating Service
Heating Repair
Heating Installation
AC Service
AC Repair
AC Installation
AC Maintenance

Serving Chicago, IL and surrounding areas

Serving Northbrook, IL and surrounding areas

AC ServiceHeating ServiceHVAC Service ∴ Harwood Heights, 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
  • Limited Time Air Conditioner System Savings – Up to $1,700 off complete system

    *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 and complete system requirements.

    Expires: 06/27/2025

  • 30% Off Any Repair with the Purchase of a Maintenance Agreement

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

    Expires: 06/15/2025

  • $500 OFF Air Conditioner

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

    Expires: 06/15/2025

  • No-Interest Financing

    For up to 72 months with Approved Credit.
    With Approved Credit. On Qualifying Systems only. Call Amber for details.

    Expires: 12/31/2025

What our clients are saying

Installing the best and servicing the rest!