sales and service

Best is a proud sponsor of our United States Veterans and Boy Scouts of America, Be sure to see our float in the Veterans Day Parade in Brunswick Maryland and the 4th of July in Purcellville, Middleburg & Leesburg, Virginia

 ​                                          Thompson BEST Heating and Air Conditioning - We work hard for you. 

                                                       24 Hour Emergency Service​                         1-866-987-HVAC (4822) 

      Main office:                                                                                                      301-662-0600 - Frederick County, Maryland
                     4640 Wedgewood Blvd, Suite 107                                                                 301-739-0998 - Washington County, Maryland 

                     Frederick, Maryland 21703​                                                                                            703-443-2378 -  Leesburg, Virginia                                                                                                                                                                                            304-557-3018 West Virginia

                     Virginia office:  

                     57 E. Colonial Hwy. Hamilton, Virginia 20158​                                                                 Licensed in MD HVAC 01-2, VA 2710059808, WV 9A-001 and PA

We offer the BEST in residential Heating & Air Conditioning installation in Maryland, Northern Virginia and surrounding areas, such as HVAC repair or installation in Frederick, Maryland and HVAC repair and installation in Leesburg, Virginia to name a few.  

 At Thompson 
BEST, we are proficient at installations in existing homes or brand new homes. There are many hvac companies that will not  install systems in older homes, but at Thompson BEST, we consider ourselves the BEST at installing systems. Whether you  have an old historical home or a newer modern home, we can do the job that others said, could not be done.

Best has installed systems in many predominate historical homes in Frederick County, Maryland, Leesburg- Loudoun County, Virginia, and Washington, D.C. 

We take pride in the ability to install systems in these homes along with the working relationships that we have developed with our clients.


Become a PRIORITY MEMBER today.  

Thompson BEST Heating and Air Conditioning can meet all your commercial installation needs from your church, business office, or the shopping center down the street.  Look for the Thompson BEST logo on the unit.

BEST has a complete sheet metal shop to custom fabricate any fittings needed to install the system whether it is a new installation or a replacement. At Thompson BEST the installation of replacement systems is very quick and trouble free. We coordinate with the crane company to remove the old worn out unit and replace it with a "trouble free" York, Lenox or Luxaire system.  If roofing must be done, Thompson BEST will work with a roofer to get you back up and running as soon as possible.

At Thompson BEST, we want you to run your business, not worry about the heating and cooling system. Leave the worries to us!

Active Military Discount for replacement of HVAC - $300.00

Senior Discount, over 65 - for replacement of HVAC $200.00

Best Heating and Air Conditioning is proud to announce that they have acquired "ABOUT HEATING AND AIR CONDITIONING" of Walkersville, Maryland. We welcome all the clients of About Heating and Air Conditioning, and look forward to working with them

1-866-987-HVAC (4822)

Copyright 2013. Charlie Smith. All rights reserved.


Sales and Service in the Maryland, Northern Virginia, West Virginia and Pennsylvania area. 

WE NOW OFFER0 % PERCENTFINANCING ON NEW UNITS...give Michelle a call today to set up an appt.

For all your gas fireplace, and gas logs - needs be sure to visit our new Fireplace Design Center

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sales and service


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