Faszold Service Co Logo

At Faszold, Your Comfort is Our #1 Priority

Comfort with your air. Your technician. Your budget. We want you to be comfortable every step of the way.

Do We service your area?

Find Out Now

We are Hiring!

Service Technicians and Install Technicians

We've Moved!

Come Visit Us at Our New Location

1613 East Terra Ln

O'fallon, mo 63366

Which Service can we help you with?

why choose us?

We are a Family Run Heating and Air Conditioning Company Serving St. Charles County and St. Louis County Since 1980

We Have Grown Throughout the Years Because of Our Customer Referrals


Our Customer's Comfort is Always Our First Priority and We Aim to Provide Them with Upfront Pricing, Exceptional Value, Quality Service, and Quality Products


upfront pricing



quality you can trust

We are certified as Trane Comfort Specialists and are committed to being the best in every aspect of our business.

Trane Comfort Specialist St. Louis

    Faszold Heating and Cooling is proud to be a Top Trane Dealer in the Midwest.    


what our customers say

"We just had our furnace and AC replaced with a new Trane system. Steve and Paul arrived on time and did a fantastic job with the installation. They were quick and efficient attending to every detail. I would recommend Faszold to anyone."


We're a family-run heating and air conditioning company serving the area since 1980

Areas Served: