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Your complete satisfaction with our heating and air conditioning services and technicians is 100% guaranteed. The on-time guarantee is one of the best in the country, and backed by heating and air technicians that are trained, skilled and experienced to exceed your expectations and needs. You’ll never be kept waiting -"Always on time.. or you don't pay a dime."
Total Comfort Guarantee
How do you know a company cares about the quality of their work? They stand behind it - that's how. At One Hour Heating & Air Conditioning®, the warranties and guarantees are industry leading because of our experienced technicians and the high quality parts we use. Our technicians are friendly, clean, polite, drug-free and experienced—and our techniques are state-of-the-art, guaranteed!

VA: Alexandria, Arlington, Springfield, Fairfax, Falls Church, Vienna, McLean,  Burke, Oakton.

 

MD: Temple Hills, Oxon Hill, Clinton, Upper Marlboro, Capitol Heights, Landover, Cheverly, Laurel, Suitland, Bowie, Brandywine, Accokeek, Fort Washington

 

Montgomery County- Bethesda, Hyattsville, Rockville, Kensington, Silver Spring

 

DC
 
On Time
If your One Hour Heating & Air Conditioning® serviceman is even one minute late the service is on us. Plus, we have convenient appointment times that fit your schedule, 7 days a week.
 
 
Drug & Alcohol Free
Our employees go through an extensive battery of background checks before being hired, and random drug tests, where permitted by law, throughout their tenures.
 
Property Protection &
Client Respect Guarantee
Our technicians are the best in skill and workmanship. While they are in your home, your property will be protected from any damage.
 
 
100% Guarantee
All repairs to your HVAC system are backed by our 100% guarantee. If a repair fails during the current heating/cooling season, we'l repair it again at no cost.
 
Straightforward Pricing™
We give you options for solving your heating and air conditioning problems, tell you the cost of your repairs upfront, and wait for your approval before doing any work.
 
 
The 97% Difference
Our employees are the very best in the business. Only 1 out of 33 of those who apply actually qualifies to enter your home wearing the One Hour Heating & Air Conditioning® uniform.
 
Total Comfort Guarantee
Your comfort is our priority, that's why there is a guarantee that the system we install in your home will heat or cool your home to specification for a full five (5) years.
 
 
"No Lemon" Guarantee
We guarantee our air conditioners for 5 years and furnaces for 10 years. If a system fails during that time we will replace it at no charge and provide a new "No Lemon" Guarantee for the replacement.

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