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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
Katherine Berkhousen
10-16-2025
“The technician Tyler was very professional, kind, and explained all steps.”
Rashawnda
10-16-2025
“Damon was super informative, patient, and personable! He made the whole process easy to understand and refreshing . I really appreciated his thoroughness and positive attitude.”
Wendy Kanter
10-15-2025
“I really appreciate Michael speaking to my husband while I wasn’t home and providing all the tools we need to replace our system”
Mouhamed Dioum
10-15-2025
“Mr. Tyler Henson did a great job. He answered all my questions and provided valuable information”
Tiffinie lurz
10-15-2025
“Michael was great explaining to me about my flame sensor and what it does and I’m glad that he was good with my golden retrievers”
Jeanette
10-15-2025
“Michael was professional and restored my heat for me after a cold weekend thank you”
George Neureither
10-15-2025
“Michael provided a great service and is very knowledgeable I’d recommend them to anyone”
James Valdes
10-15-2025
“Michael was great providing me with exceptional service and making sure that I am taken care of”
Mike Abel
10-15-2025
“I want to thank Michael for going above and beyond to make sure that I understand how my systems operate”
Teresa Bassma
10-14-2025
“Damon thoroughly explained the diagnosis and recommended solutions.”
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
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