Residential HVAC

The HVAC company for St. Louis, Missouri.

From sweat one day, to shivers the next, Harster knows just how tough your HVAC has to be to tackle this town’s brutal, ever-changing conditions. We have the systems and services you need to keep up with the climate.

We offer a wide range of quality HVAC systems from the top manufacturers and companies. We work with outstanding contractors and our service team is one of the best you’ll ever work with for installation of a new system or maintaining your current system.

Harster Heating and Air Conditioning is a top-rated residential and commercial company whose been family-owned and operated for over 60 years. We’re proud to work with top manufacturers, offer great prices and provide exceptional installation, repair, replacement and maintenance for all your HVAC needs.

To learn more, call us today at 314-631-5300 or email us here. We will reply within 24 hours, Monday-Friday.