Contact our Maryland and Virginia Locations

We Welcome Your Calls!

Did you know you can schedule an appointment online?

Thompson BEST makes things as easy as possible for our customers!

Why Choose Thompson Best?

  • Locally owned and operated
  • Phone calls answered by a live human
  • Written estimates
  • Prompt project completion, including all installations inspected by a supervisor
  • Factory-trained service technicians and installation teams
  • Licensed Maryland Propane & Natural Gas Fitters
  • Refrigerant licensed by the Federal Government
  • Trane factory authorized dealer
  • The only Luxaire® Certified Comfort Expert in Maryland


For our Maryland customers in Frederick, and Montgomery Counties, please call us – 301-662-0600 For our customers in Washington County, please call us – 301-739-0998 or Email us for additional services.

When you see one of our trucks, ask your neighbors about our excellent service and they will tell you why you should call us.


For our many customers in Virginia please call us on our Virginia line – 703-443-BEST (2378) or Email us or additional services.

Our service trucks are in your area every day and we want to be your air conditioning and heating company.

For our West Virgina and Pennsylvania customers please call 1-866-987-4822

4640 Wedgewood Blvd., Suite 107
Frederick MD 21703
Offering 24 hour/7 day service.

57 E Colonial Hwy.
Hamilton, VA 20158
Offering 24 hour/7 day service.

Providing customers in Maryland and Northern Virginia with heating and air conditioning repair, service, and installation.