Mount Airy Heating & Cooling Experts
Don't Let "Small" Problems Turn
Into Big Ones. One Hour Can Help.
Some of Our Specialties
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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“WOW, what savings. I will recommend your services and equipment for everyone.”
- Diane D. -
“I thought that it was going to be a mess (getting ducts cleaned) but they were very neat and professional and they had taken their time to do it right. Well done and I only wish I did it sooner.”
- Ira G. -
“He was very polite and knowledgable and did a great job fixing the drain pipe. He also changed my furnace filter while here. I would use this company again! The price was reasonable.”
- Irene T. -
“The service contracts are great and I have recommended One Hour and Benjamin Franklin to my neighbors.”
- Tom M. -
“I will stick with them and would recommend them to others because they are very good at keeping to their schedule and being responsive. Their workers are professional, clean, and, they respect your house and you.”
- Marty V. -
“Called and let me know when he would arrive, did a very thorough job of checking everything.”
- David D.
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.
