Just a little note with a big thank you to your great customer service company.

- Mary M, Ballwin

After using several different heating and cooling companies without satisfaction our neighbor referred us to you. We have been very satisfied ever since.

- Andrew, Pacific

We’ve used Fresh Air for over 20 years!! Each year we purchase the service plan and it gives us a feeling of security to know they will be here.

- antique46

Steve has been our service technician and extremely pleased with his work ethic and his ability to correct all issues with our geothermal system.

- Ron and Jo Ann W, St. Louis

HVAC and Indoor Air Quality Services in Chesterfield, MO

Fresh Air Heating & Cooling is a family owned and operated HVAC and indoor air quality service contractor, and has been since its founding in 1987. We are open 7am–7pm, 7 days a week. We hold an A rating on BBB, and have won the Angie’s List Super Service Award 10 years in a row. All of our technicians and installers are:

NCI certified
NATE certified
Licensed
OSHA trained

Our team works hard to ensure that our customers are taken care of, from the first phone call to the completion of the service. We offer a 1-year warranty on all repairs, and a 5-year labor warranty on new Carrier equipment installed. Like our founders (and current owners’ parents) always said, happy customers lead to a successful business.

Bring Fresh Air into Your Home Today.

How can we help?

The Fresh-Air Technicians and Installers

Learn More About Us

We provide competitive rates while providing excellent service
Our staff undergo rigorous training & continuing education
We always answer the phone in person, 24/7
Our Technicians hold the latest certifications in excellence & safety
We always arrive on time and respect your schedule
We ensure satisfaction through follow-ups
Our Technicians are payed on an hourly rate, not commission. Their recommendations are in your best interest!
We guarantee 100% satisfaction

Clean

Courteous

Qualified

Certified

Serving St. Louis County and St. Charles County

Do we serve your neighborhood?

View All Towns We Serve

3 Warning Signs of a Furnace Emergency

Make sure that you watch out for these signs of a furnace emergency in your home. If you notice any of these problems, it's time for you to schedule an appointment with our professionals.

Need Heating Repairs? Wasting Time Can Cost You Big Time!

When you need heating repairs in O'Fallon, MO, you need to act fast. Delaying in scheduling your heating repairs is only going to cost you more in the long run.

Enjoy These Discounts