Potomac Street Grill

Andys Pizza, Lovettsville, Va.

​Gladhill Tractor, Frederick Maryland





                  24 Hour Emergency Service​ 
                          Main office:
                 4959 New Design Road, Suite #118   

                 Frederick, Maryland 21703​                  


THOMPSON BESTS COMMERCIAL department has provided installation of mechanical equipment and systems for many local businesses in the area. We are dedicated to keeping your employess and customers comfortable.. Here are a few of the local businesses that we have installed and maintained the HVAC units.

Potomac Station Shopping Center, Maryland

E & A Fine Furniture, Frederick Maryland

Frederick Equipment, Maryland

BEST Heating and AC provides commercial maintenance of your HVAC equipment which helps extend the life of your system, offers improved capacity to older units, lowers utility bills and leads to fewer repairs. Preventative maintenance plays a key role in keeping your HVAC equipment at it’s optimal performance level. Our commercial maintenance service always includes the following precision tune-up procedures :

Clean and adjust burner/pilot assembly

Clean ignition assembly

Perform safety inspection of heat exchanger

Monitor flue draft

Adjust operating pressures

Monitor starting capabilities

Test safety controls

Test for proper airflow

Clean or replace air filters specific to contract

Clean and adjust blower components

Oil motors where applicable

Tighten electrical connections

Monitor voltage/amperage

Monitor fan and safety limit controls

Adjust thermostat calibration

Clean evaporator coils once a year

Clean condenser coils once a year

Clean condensate drains

Measure temperature rise

Inspection and replacement of drive belts

 We can perform an on-site inspection in order to give you an accurate proposal for service. THOMPSON BEST WILL KEEP YOUR EMPLOYEES AND CUSTOMERS COMFORTABLE. 

akastle in Hamilton, VA on Houzz


Brunswick Citizen Newspaper

Bogg's Environmental, Maryland

Copyright 2013. Charlie Smith. All rights reserved.


1-866-987-HVAC (4822)

Sola Salons, Maryland

​​Boonsboro Maryland

Town Hall

1-866-987-HVAC (4822)

​301-662-0600 - Frederick County, Maryland
301-739-0998 - Washington County, Maryland
703-443-2378 - Leesburg, Virginia

  304-557-3018 West Virgina

        Licensed in MD HVAC 01-2, VA 2710059808, WV 9A-001 and PA