When the Weather’s at its Worst. We’re at our Best.

Chicago Heating and Air Conditioning

Chicagoland’s HVAC Experts

Thornton Heating Service, Inc. provides heating and air conditioning solutions to Chicago businesses and homeowners. From new system installation to routine maintenance and repairs, our experts are trained to service every major HVAC brand on the market. To alleviate the burdens of unexpected HVAC expenses, we offer Chicagoland a variety of financial solutions. These solutions include specials and financing options.

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Heating Services

Our heating experts are well-versed in Chicago winters. Prepare for the winter season with energy-saving maintenance or repairs on your furnace or heating system. Or get ahead of the next winter storm by replacing your energy-draining heating system with a new, more reliable one.

We install:

Cooling Services

Chicago summers are hot, and we know how important it is to keep cool and comfortable during periods of extreme heat. Our experts help your air conditioning system running optimally and efficiently with trusted maintenance or repairs. We’ll also replace your outdated air conditioner with a newer, more efficient model to help you save on utility costs.

24-Hour HVAC Services

We’re Chicago’s go-to provider for 24-hour emergency HVAC services. We know HVAC issues can happen unexpectedly and at any time.

Our technicians:

HVAC Accessories

We sell and install products that help you protect, extend the lifespan of, and improve the performance of your HVAC and air purification systems.
HVAC accessories include:

Other HVAC Solutions

We provide more than just heating and cooling services. We ensure your home is running at peak efficiency with water heaters and generators.

Schedule Your Appointment

From heating to cooling and beyond, get reliable HVAC services from Thornton Heating. Book your appointment today!