Contact Us - Heating, Ventilation, Air Conditioning and Refrigeration Contractors

Board of Heating, Ventilation, Air Conditioning and Refrigeration Contractors
100 S. Charles Street, Tower I,
Baltimore, MD 21201.
410-230-6196
Fax: 410-962-8483
Dial 7-1-1 to place a call through Maryland Relay
e-mail: DLOPLHVACR-LABOR@maryland.gov

GENERAL INFORMATION 410-230-6196
For in-person assistance Monday through Friday from 10:00 a.m. – 4:00 p.m., please schedule an appointment online.