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Mount Airy, MD
Mount Airy, MD
Bringing Comfort Home
Mount Airy HVAC Services
One Hour Air Conditioning & Heating® of Mount Airy
4.8
Heating, AC & Furnace Repairs in Mount Airy, MD
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
4.8
The One
10-23-2025
“Tyler is a great technician !!!!!!!!!!!”
diggy 100
10-21-2025
“Tyler was great! He came out to help me and was very informative and efficient. If I have any other issue I will be calling him directly!”
tavonya blow
10-21-2025
“I couldn’t be happier with my experience with Tyler! From the first phone call to the final inspection, everything was handled with professionalism and care. Tyler showed up on time, explained everything clearly, and went above and beyond to make sure my system was running perfectly. The work was done quickly and the quality was top-notch. It’s rare to find a company that’s this honest, knowledgeable, and dependable. If you’re looking for trustworthy HVAC service, look no further — Highly recommend!”
Anthony Franklin
10-21-2025
“Tyler came through and fixed my air condition in less than an hour Told me what was the problem And how to maintain the ac so it won’t break again.”
Kevin Stafford
10-21-2025
“Tyler was great! He came out to service my system and did an excellent job from start to finish. He quickly diagnosed the issue, explained what was going on in a way that was easy to understand, and got everything back up and running perfectly. He was on time, polite, and clearly knows his stuff. You can tell he takes pride in his work. I’d definitely recommend Tyler to anyone needing HVAC service!”
Genesha Williams
10-21-2025
“Tyler came out to take a look at my HVAC system, and he was extremely helpful and professional the entire time. He took the time to explain what was going on and what needed to be done, without trying to upsell anything. You could tell he really knew his stuff and cared about making sure the job was done right. Everything’s been running perfectly since the repair. Highly recommend asking for Tyler if you need any work done!”
CityCollege Classof14
10-21-2025
““Tyler was great—professional, knowledgeable, and efficient. He quickly diagnosed and fixed the issue. Highly recommend!””
Cheryl Woods
10-20-2025
“Tyler did a great job with my furnace inspection”
Jeff Isaac
10-18-2025
“Damon was a pleasure to work with. Very knowledgeable about his trade and easy to talk with. I was very happy with his service.”
Jesse hackbarth
10-17-2025
“Michael was great in explaining how outdated my system is very knowledgeable”
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.
Financing Available!
Prioritize your comfort without fronting the entire bill on day 1 – contact us today to learn more about financing options.
Hours of Operation
We are available 24/7 to take your call for emergencies. For all other services, our appointment hours are:
Monday
24 hours
Tuesday
24 hours
Wednesday
24 hours
Thursday
24 hours
Friday
24 hours
Saturday
24 hours
Sunday
24 hours
Expert Tips
Learn From Our HVAC Experts
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.
