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Welcome to Koesterer Heating & Cooling Inc!

When you want professional heating, HVAC and cooling services, you can rely on the expertise of Koesterer Heating & Cooling Inc. We offer our services to our customers in Granite City and St. Louis Metro East Area, IL (Metro). Our wide range of services includes installation, repair, maintenance and more. Along with HVAC services, Koesterer Heating & Cooling Inc also offers you superior products at unbeatable prices.

We serve our residential as well as commercial customers with our heating and cooling services.

Heating systems maintenance

Koesterer Heating & Cooling Inc Specializes In:

  • Air Conditioning Installation, Repair and Maintenance
  • Energy-Saving Systems
  • Heating Systems Installation, Repair and Maintenance
  • Sheet Metal
  • Ventilation Service

We are authorized dealers for TRANE. So you can expect the best HVAC equipment for your home or office at our shop. We are a licensed business that makes us all the more credible. Koesterer Heating & Cooling Inc also provides you financing options. Please come to us for all your HVAC services.

As most of the people do not follow regular maintenance of their heating and cooling systems, we are here for assistance. Call us today for free estimates on installation of heating or cooling equipment.


Heating & Cooling Inc.
3371 State Rt. 162
Granite City, IL 62040

Phone: (618) 451-7500

Koesterer Heating And Cooling Inc.Koesterer Heating And Cooling Inc. provides complete heating and cooling services along with Trane products in Granite City, IL.