Commercial HVAC Service, Commercial HVAC Installation, Commercial HVAC Maintenance, Commercial HVAC Replacement & Commercial HVAC Repair in Northbrook, IL

Northbrook, IL Reliable Commercial HVAC Services

Guardian Heating & Cooling Service provides for a complete selection of commercial HVAC services in Northbrook, Illinois. Schedule with us online or by calling 312-818-2840 and appreciate flexible appointment times, prompt arrival and expedited turnaround. As a family owned and operated HVAC company, we recognize the impact of properly working heating, cooling and ventilation systems and prioritize a swift, hassle-free and satisfying completion of all jobs. We look forward to treating you right.

Commercial HVAC ReplacementCommercial HVAC InstallationCommercial HVAC ServiceCommercial HVAC MaintenanceCommercial HVAC Repair ∴ Northbrook, IL


To qualify as a Carrier Factory Authorized Dealer, Guardian Heating & Cooling Service consistently meets exacting requirements for technician training and expertise as well as business practices, service protocols and customer approval ratings. By exceeding expectations, we are a proud winner of the Carrier President’s Award. When it’s time for a new heating, air conditioning or indoor air quality system, let us make an improvement that minimizes running costs, responsibilities and carbon footprint while elevating the efficiency, health, cleanliness, productivity and comfort of the work space.

Keep Your Business Warm with Guardian Heating & Cooling Service Commercial HVAC Services

Along with a versatile line up of commercial HVAC systems, Guardian Heating & Cooling Service handles snow melt systems, oil to gas conversion, skilled repairs of all makes/models and essential tune-ups. We offer helpful financing, beneficial maintenance plans and the assurance of 24/7 emergency response. With seven decades of resolving all types of challenges, we are large enough to handle your needs, and small enough to care. Trust our NATE-certified, fully licensed, bonded and insured technicians to champion your best interests.

Serving Chicago, IL and surrounding areas

Serving Northbrook, IL and surrounding areas

Commercial HVAC MaintenanceCommercial HVAC ServiceCommercial HVAC ReplacementCommercial HVAC InstallationCommercial HVAC Repair ∴ Northbrook, 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
  • Financing Special 0% financing for up to 60 months

    With Approved Credit. On Qualifying Systems only. Call Amber for details. Expires 12-31-24.

  • 30% off

    30% Off any repair with the purchase of a maintenance agreement.*

    773-763-9224


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

    Expires: 12/31/2024

  • Free 2nd Opinion

    773-763-9224


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

  • Save Thousands w/ Local & Federal Rebates

    Learn More


    *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.

What our clients are saying

Installing the best and servicing the rest!