Mount Airy Heating & Cooling Service Experts
Don't Let "Small" Problems Turn
Into Big Ones. The One Hour Guys Can Help.
Some of Our Specialties
Special Offers Backed by Our
100% Satisfaction Guarantee
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Free Replacement Estimates Upgrade Today and Save on Your Energy Bills! One Hour Air Conditioning & Heating® of Mount Airy Coupon must be presented at time of purchase. Cannot be combined with any other offers or discounts. Management reserves the right to modify offers at any given time. Some restrictions may apply. Expires Dec 31, 2021
Mount Airy HVAC Company
Heating & AC Experts Serving Frederick County, Montgomery County & Beyond
One Hour Air Conditioning & Heating® of Mount Airy has a long history serving the residents of Mount Airy, Frederick, Gaithersburg, and throughout the Washington DC area. We’ve been in business since 1949 and turned our focus to HVAC service in 1993. Our team has the same goal that we started with: making customers happy and comfortable through excellent heating and AC service. Every member of our team undergoes extensive training and is well equipped to solve any HVAC problem. Our vehicles are so well-stocked with parts that we can finish most jobs in one visit!
Why Maryland Customers Love Our HVAC Services
Even though we operate under the name of a nationally-recognized HVAC company, we’re a proud local business based in Mount Airy. Our team back all their jobs with amazing guarantees that make sure we’re always on time, and we always do the job right the first time. To be as transparent as possible, we also have a StraightForward® pricing guide so you’ll know the costs of all our heating and AC services before we perform them.
For local HVAC repair, installation, and maintenance need in Mount Airy, Frederick, or beyond, call the experienced team from One Hour Air Conditioning & Heating® of Mount Airy right now!
Always On Time...
Or You Don't
Pay A Dime
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‘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. -
We Love What We Do
Our trained Comfort Specialists are friendly,
knowledgeable, and genuinely love helping people.
We Have A Reputation For Being Punctual, Friendly, and Knowledgeable
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“Our tech Larson was amazing!! I am so glad we went with this company!! Originally we had Michael and Sons come to our house because they had the first available appointment that worked for family. Big ...”
- Laylani K -
“One Hour of Mt. Airy really knows how to take care of their customers! I recently had to transition my maintenance plan from a different One Hour franchise to Mt. Airy One Hour and had an HVAC ...”
- Dan Madey -
“Jonathan P. is the consummate professional. He wore his mask, completely explained the work being performed, and answered questions. I was very pleased with the service he provided.”
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“Air conditioning was out. Called and they came out a few hours later. Quick diagnosis and solution.”
- Christopher A. -
“I appreciated the care Brian took to diagnose problems with two different systems - we found multiple issues and he objectively gave me options without trying to sell me anything. I had a lot of ...”
- Lisa H. -
“My technician, Larson, is just great! Always on time, professional and personable! The office staff are equally as helpful and responsive. All around a great business to work with!!”
- Rita G.
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Areas We Serve
- Boring
- Damascus
- Freeland
- Glyndon
- Hampstead
- Lineboro
- Manchester
- Mount Airy
- New Market
- Parkton
- Towson
- Upperco
- Westminster
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Zip Codes We Serve
- 20872,
- 21020,
- 21053,
- 21071,
- 21074,
- 21088,
- 21102,
- 21120,
- 21155,
- 21157,
- 21158,
- 21252,
- 21285,
- 21771,
- 21774
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.
