Heating & Cooling Services for Northern Virginia & Surrounding Areas
100% Satisfaction guarantee!
As the leading HVAC service provider in VA and throughout the United States, we proudly serve communities from coast to coast—bringing expert service and peace of mind to homes throughout your area. One Hour Heating & Air Conditioning® of Northern Virginia is based in Ashburn and provides expert heating and cooling services to residents in Northern Virginia and the surrounding areas.
Check out our complete service area map below. If you’re still unsure whether we service your address, give us a call at (571) 380-7548.
HVAC Near Me In...
One Hour Heating & Air Conditioning® of Northern Virginia services the following communities:
Paeonian Springs
Ashburn
Sterling
Leesburg
Lovettsville
Waterford
Marshall
Middleburg
Orlean
Paris
Philomont
Purcellville
Bluemont
Rectortown
Round Hill
Delaplane
Hamilton
Lincoln
Upperville
Warrenton
Winchester
Berryville
Boyce
Front Royal
Millwood
Stephens City
Stephenson
White Post
Aldie
Manassas
Centreville
Bristow
Broad Run
Catharpin
Ashburn
Chantilly
Gainesville
Haymarket
Warrenton
The Plains
Manassas
Catlett
Nokesville
Dumfries
Quantico
Triangle
Woodbridge
Ruby
Stafford
Fairfax Station
Lorton
Occoquan
Woodbridge
Manassas
Centreville
Clifton
Burke
Fairfax
Washington
Dulles
Chantilly
Sterling
Herndon
Reston
Fairfax
Oakton
Vienna
Herndon
Reston
Great Falls
Greenway
Mc Lean
West Mclean
Vienna
Annandale
Dunn Loring
Fairfax
Falls Church
Merrifield
Springfield
Arlington
Alexandria
Fort Belvoir
Mount Vernon
Springfield
Alexandria
Washington
Falls Church
Arlington
Fort Myer
Alexandria
Google Schema
We Have a Reputation
For Being Punctual, Friendly and Knowledgeable
4.6
(538 reviews)
Josette Hodges
07-13-2025
“Today I received service from Craig Moss of Modern Mechanical and he was AMAZING!!! Craig was professional, punctual, AND trustworthy. I say he’s trustworthy because as a first time homebuyer, I got three different quotes and Craig was the only person to teach me about my AC system, the home maintenance plan, and how to smartly save and invest in a newer system a year from now. AND he SAVED me a ton of money!💰…Thank you Craig!🙂🤗 One Hour is the only HVAC service that I will be using from now on!😎”
Michael Magrath
06-22-2025
“Just prior to listing our home for sale, our heat pump died. We contacted One Hour Heating and Air Conditioning, and they sent a technician that day. He was professional and knowledgeable. We could repair it or replace it. Given its age, we replaced it, and the installation was done in a few days. Tremendous service! Fast forward to our new home. We opted to replace both 21-year-old HVAC systems (upstairs and downstairs) and there was no doubt which company to call, One Hour Heating and Air Conditioning. The contracting process was simple and easy, and the price was very reasonable. The team of technicians, led by Ludwig, were on-time, professional, and did a great job and they thoroughly cleaned up when they finished, which was nice. After two transactions in 6 months, with both installations having gone smoothly, I can’t say enough and highly recommend them.”
David Long
01-30-2025
“Great chatting with Michael!”
Mimi B
01-21-2025
“Our service was completed by Michael. Our thermostat failed on 1/16, days before our scheduled service date of 1/20 so, we decided to wait rather than request additional service. Michael arrived on time, professional, courteous and his knowledge, observable. We asked that he address the non functioning thermostat prior to beginning the regular maintenance, given the expected drop in temperature. Michael quickly diagnosed and addressed the issue. We have received services from this company for over 10 years BUT, this experience with Michael was definitely the best. Thank you.”
John Andrews
01-18-2025
“Routine maintenance was performed by Michael Terry. He came in the advertised time frame, He was respectful to put covers on his shoes to prevent tracking dirt into the house; he was extremely friendly and informative. He executed his job quickly but efficiently, and gave valuable advice for future care. I commend him for his performance and for his abilities.”
Beverly Ballinger
11-18-2024
“Scott did an excellent job on my HVAC today he solved lots of air issues I was extremely pleased with his professional expertise. Highly recommend Modern Mechanics”
Joel Itskowitz
10-29-2024
“Love having one provider for HVAC, Electrical & Plumbing”
Gayle Blair
10-29-2024
“Carlos did and excellent job of checking and maintaining our ac system. He is an excellent technician”
BF
10-13-2024
“Great company. We have been using them for several years. They are honest, respectful, punctual, & clean. All their techs are knowledgeable & respectful. Our guy is Carlos great guy. Efficient to the point and easy to talk too. If you have any HVAC you should definitely call One Hour!”
Charles Senor
10-11-2024
“Always easy to schedule, Jaime keeps it straight and to the point, won't use anyone else.”
