Connect With Us
Please leave your information below and we will be in contact soon.
West County, MO
West County, MO
Bringing Comfort Home
West County HVAC Services
One Hour Heating & Air Conditioning® of West County
5.0
Heating, AC & Furnace Repairs in West County, MO
When homeowners want a reliable heating or air conditioning system that they don’t have to think about, they call One Hour Heating & Air Conditioning. We are the premier HVAC service provider in the United States for a simple reason: we actually care about your comfort.
At One Hour, we respect you, we respect your time, and, most importantly, we respect the trust that you put in us to keep your home comfortable. It’s why we back all of our work with a 100% customer satisfaction guarantee for two years, and it’s why we’re always on time—guaranteed.
We Have a Reputation
For Being Punctual, Friendly and Knowledgeable
5.0
Mike Farmer
10-16-2025
“All good”
Patricia Chuffo
10-16-2025
“Always punctual, thorough, professional and helpful, THANK YOU!”
Alice Miller
10-15-2025
“We've been customers of Dunn One Hour Heating & Air for almost 6 years. Nothing but excellent service. All of the personnel are wonderful to work with.”
Cherial Rekart
10-08-2025
“My technician, Farrell, was very knowledgeable and explained everything. My furnace is pretty old and may need replacing. He gave me some options for replacing now or waiting awhile. I have two furnaces and I felt confident I am in good hands. Thanks again, Farrell!”
Lawrence Nordmann
10-07-2025
“Farrell was mostly one time and shared a lot of very detailed information about erv’s. looking forward to working with his company if their proposal meets my expectations.”
Stefanie London
10-07-2025
“The Dunn technician was on time, thorough and professional. He reviewed his work and answered all of my questions. I am very happy with Dunn heating and cooling”
Ron Walker
09-30-2025
“Excellent...”
Mark Reinert
09-23-2025
“Ferrel fulfilled all of the important needs of any client. He was: ( On time after pre-estimate of arrival, considerate of clendliness, efficient in time usage, and very transparent of what was to be done.”
Debra Ackerson
09-22-2025
“Farrell was thorough and did a great job. He answered all of my questions, and did the work in a timely fashion. I would highly recommend him, and Dunn Heating and Cooling.”
Michelle Dovin
09-18-2025
“Tech was very thorough, took care of our systems efficiently and explained everything well. Also recommended future needs of our heating systems without being pushy which is really appreciated. Booked yeary maintenance with them.”
Our customers love what we do because we treat them like the neighbors they are to us. While we carry the One Hour name, we're an independently owned and operated business with a personal investment in the local community. We back our work with a 100% satisfaction guarantee, provide StraightForward® pricing guides for your benefit, and will pay you back for being even one minute late to an appointment.
Here For You
When You Need Us Most!
'Round the Clock Availability
No matter the hour, you can trust One Hour to be there to help you when you get hit with the unexpected.
100% Satisfaction Guarantee
We guarantee our materials, labor, and craftsmanship for up to two years from the date of your service.
StraightForward Pricing® Guide
Before we start any work, we discuss your available options so you know exactly what you are getting and how much it will cost. No hidden fees!
Always On Time…Or You Don’t Pay A Dime!®
We understand your time is valuable, so we promise to arrive at your home within the predetermined time window that you select, or your service call is free.
Hours of Operation
We are available 24/7 to take your call for emergencies. For all other services, our appointment hours are:
Monday
9:00 AM - 5:00 PM
Tuesday
9:00 AM - 5:00 PM
Wednesday
9:00 AM - 5:00 PM
Thursday
9:00 AM - 5:00 PM
Friday
9:00 AM - 5:00 PM
Saturday
Closed
Sunday
Closed
Authority Brands is the leading provider of in-home services, building brands that support the success of franchisees as well as better the lives of the homeowners we serve and the people we employ.
