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Mount Airy, MD

HVAC Service you can count on

4.7

(801 reviews)

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Heating & Air Conditioning

Services By One Hour

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HVAC Service Near Me 
—Available 24 Hours

One Hour Heating & Air Conditioning understands that heating and air conditioning issues create uncomfortable living situations — especially when temperatures outside are extreme. Luckily, our customer specialists are on standby 24/7 to fix your urgent issues. Whether you need HVAC installation, repair, or maintenance, our HVAC service experts are ready to help.

Emergency HVAC Services

We offer 24-hour emergency HVAC services – even on weekends and holidays – to ensure you have professional support when you need it most. Arriving with service trucks stocked full of specialty parts and tools, we have the equipment needed to fix many HVAC problems on the spot. In the case that additional parts are needed, rest assured – we will do everything in our power to handle your HVAC emergency quickly and efficiently.

Air Conditioning

Whether you need an emergency replacement, regular maintenance, or installation services, our qualified technicians have the experience and technological resources to get any HVAC job done correctly. We utilize the latest tools, products, and techniques to stay up to date with cutting-edge changes in the industry.

AC Repair

At One Hour Heating & Air Conditioning, our HVAC technicians service all major AC brands and models. Our AC repair team can fix:

  • Poorly insulated ductwork
  • Power supply breakdowns
  • Defective fans or thermostats
  • Refrigerant leaks
  • Frozen condenser coils
  • Blocked condensation drainage
  • AC short-cycling (turning on and off too quickly)

After inspection, we will provide a detailed estimate.

AC Installation & Replacement

There are many telltale signs that an HVAC unit might need to be replaced. If an HVAC unit is over 10-years old, smells terrible, blows warm air, or produces subpar results as energy bills keep rising, give us a call!

AC Maintenance

For optimal performance, AC units require many parts to work seamlessly together. A single problem can cause a ripple effect of issues. This is why spotting minor malfunctions is critical. With regular maintenance visits, we can ensure your HVAC system is operating smoothly and efficiently. Consider joining our Club Membership for additional customer benefits.

 

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Our Happy Customers

Reviews of Mount Airy

4.7

(801 reviews)

Patricia Moore

03-26-2025

“I hope I got the right person. He looks like the one that was here. He did a great job. He went through everything with me. He was very knowledgeable, very professional.”

Marusia Zearfoss

03-25-2025

“Installed new heat pump & hot water tank. Excellent work. Very professional crew who obviously care about the quality of their work.”

Brian Childs

03-17-2025

“Our appointment with Shawn was professional knowledgeable and beyond friendly. I highly recommend this company.thank”

JLB aka Bellus

03-07-2025

“Great job...Thanks!”

Bruce Zinck

03-04-2025

“Larson was awesome. So knowledgable extremely friendly. He has been here before and same results. Outstanding”

Kenneth Grimm

01-28-2025

“Larsen Kimble kept us informed with all of the issues encountered during the 36 day ordeal that we had to go through. Larsen constantly had to deal with the tech people to figure out each issue that arose. The fact that the manufacturer initially provided a unit that was the wrong one, then provided a unit that was not programmed with a heat inverter, caused many problems and LONG delays. Larsen was always on top of things and was very cordial with us. In fact, he was as upset and frustrated as we were. And he spent many hours at our home trying to make things right. In the end, it was Larsen, not the tech people, who figured out the solution, which showed how knowledgeable he is. Many thanks to Larsen and the rest of his team.”

Julie Chandler

01-24-2025

“Wonderful service call. Cleaned all the dust and dirt out of my system. Very honest and polite! Very happy. Definitely recommend their service!!”

Lloyd Apirian

01-04-2025

“Matt was excellent. Patient and competent. Methodically worked through out furnace and identified our problem and potential fixes along with a recommendation.”

Tim Huether

12-24-2024

“Matt was great! We had a minor gas leak in our boiler for our radiator. He was thorough, clear, honest, and answered all of our questions! We will definitely go with one hour / Ben Franklin for all of our boiler issues in the future!”