Contact Us

If you are trying to find a HVAC company, look no further than Allied Service Company! We provide customers with comprehensive HVAC services that include:
  
When you contact Allied Service Company, you can take advantage of our FREE, NO-OBLIGATION estimates and diagnoses. You have nothing to lose but so much to gain! Besides our free service calls, customers can benefit from our 24/7 emergency services that will ensure you are taken care of when you need us. HVAC and plumbing emergencies can happen at any time, no can predict when their furnace will breakdown or when their pipes will burst – it's inconvenient to say the least! Allied Service Company understands that emergencies like these happen, which is why we are more than happy to help you around the clock!
 
Allied Service Company provides HVAC and plumbing work in the Washington, DC and Maryland areas, which include the following cities:

Bethesda
Rockville
Gaithersburg
Silver Spring
Kensington
Potomac
Olney
Burtonsville
Clarksburg
Damascus
Clarksville
Columbia
Ellicott City
Elkridge
Laurel
Beltsville
College Park
Hyattsville
Glenwood
Mt. Rainier
Landover
Upper Marlboro
Bowie
Lanham
Capitol Heights
Ft.Washington
Oxon Hill
Mitchellville
Ocean City
Lisbon
Mt. Airy
Value

We have two centralized locations that provide our customers with quick and reliable HVAC service!
 
Washington, DC Office                                                                 Maryland Office
600 Gallatin Street                                                                          3900 38th Street
NW Washington, DC, 20011                                                         Brentwood, MD 20722
(202)291-1000                                                                                    (301)779-7753
 
Stop trying to find a HVAC company and choose Allied Service Company! Call us today or fill out our online appointment form for service.