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St. Louis Air Conditioning & Heating Services

Trusted HVAC repairs in St. Louis area

Throughout the years, our St. Louis heating and AC professionals have developed strong relationships with customers because we care about your comfort. At One Hour Heating & Air Conditioning® of St. Louis, we’re always ready to help you with your heating and cooling issues, no matter how big or small. Whether you need help repairing your air conditioner, improving the air quality in your home, installing a new heater, there’s nothing our team can’t handle.

We don’t simply make promises—we back up our work with a 100% satisfaction guarantee. Our UWIN Guarantee means we stand behind our parts, labor, and craftsmanship for two years past your service date! Our promise ensures all our solutions are designed to be long-term.

Heating & Cooling Repair, Replacement & Installations in St. Louis

Our HVAC technicians are highly skilled, experienced, and knowledgeable in all things related to air conditioning and heating. They are background checked and drug-tested for your peace of mind. With our team on your side, you can rest assured that we are reliable technicians that will deliver excellent quality services. Our priority is to ensure that you regain the comfort in your home. Reach out to our St. Louis HVAC repair team today so that we can inspect your air conditioning and heating problems!

Always On Time... Or You Don't
Pay A Dime

We Have A Reputation For Being Punctual, Friendly, and Knowledgeable

    “James was very knowledgeable and professional. I always appreciate the quality service offered by your company!”

    - Diane Pfister

    “One Hour Heating and Air Conditioning are the company to call for all of your heating and air conditioning needs.”

    - Patricia Dawn Wolfe

    “Truly outstanding!”

    - Susan Ogborn

    “Kind, considerate and responsive Service”

    - Anthony Montalbano

    “Dave Eder is wonderful! Very pleasant and thorough.”

    - Matthew Croke

    “Love One Hour A/C”

    - Kathy Ball
  • Areas We Serve
    • Ballwin
    • Chesterfield
    • Cottleville
    • Eureka
    • Fenton
    • Glencoe
    • Grover
    • High Ridge
    • Lake Saint Louis
    • O Fallon
    • Saint Charles
    • Saint Louis
    • Saint Peters
    • Valley Park
  • Zip Codes We Serve
We may service additional communities. Please contact us for more information.
  • North American Technician Excellence
  • U-Win Satisfaction Guaranteed

Here for You Around the Clock

Our Comfort Specialists are available to help, no matter the time of day. If you're in need of emergency services, we've got you covered 24/7.

Part of the Authority Brands Family