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West County, MO
West County, MO
Bringing Comfort Home
With Expert AC 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 Knowledgable
5.0
michele Davis
04-09-2025
“Well the office staff was very patient with me making several calls to them to find out what time Ferrell would be here because I had a doctors appointment so a big shout out to them and Ferrell who comes out and checks my heating and air unit, Every six months is awesome. Great guy! He really helped me out today so that I could get on my way to my doctors appointment so thank you Farrell.”
Patrick Tipton
04-09-2025
“On time, excellent service, and reasonably priced. Don't make the mistake of trying to DIY your HVAC, call the professionals and let them give you that peace of mind. I will be using Dunn for my HVAC needs in the future, thank you!”
Dave C
03-27-2025
“I have been using Dunn for many years and have been happy with their service. They were on time and got things done in a timely manner.”
Rob Lutfiyya
03-14-2025
“What an amazing company! We couldn’t be happier with the quick and professional service we get from Dunn One Hour. TOP NOTCH!”
David and Margaret Gloyd
03-10-2025
“Fast, professional and excellent service. They were here quickly after we called with an issue with our upstairs furnace. They had the problem resolved quickly and affordably.”
Robert Gibson
07-10-2023
“Very professional , on time , came out next day definitely would recommend!”
Sharman Ray
07-09-2023
“When your air conditioner suddenly quits in the heat of the summer this is the company to call. Nathan and Logan were on time, efficient and very professional.”
Micah Vaninger
06-28-2023
“New system install done quickly and correctly! Friendly and professional crew.”
darla Ray
06-28-2023
“Friendly, professional, efficient”
konner kloster
06-27-2023
“Great company to work with. Professional and thoroughly knowledgeable tradesmen.”
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.