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Maryland Board of Heating, Ventilation, Air Conditioning and Refrigeration Contractors (HVACR)

The offices of the Maryland Board of Heating, Ventilation, Air Conditioning, and Refrigeration (HVACR) Contractors are open and serving our customers through our online licensing resources, via e-mail and telephone, and by limited in-person appointments. Please note, walk-in assistance is not available. We can be reached using our contacts page for e-mail addresses and telephone numbers of individual staff members; or

Schedule an Appointment

Use Labor’s Central Scheduling System to meet with a representative from one of our boards or commissions. Please select the type of appointment you need from our list of available in-person services using the drop-down menu on the scheduler. You will receive an e-mail confirming the date and time of your appointment.

Appointments are available Monday through Friday, from 10:00 a.m. – 4:00 p.m. at our offices located at 500 N. Calvert Street, Baltimore, MD 21202. Please enter the building using the Calvert Street entrance and arrive at least 10 minutes early before your scheduled appointment time.

The Maryland Board of Heating, Ventilation, Air Conditioning, and Refrigeration (HVACR) Contractors licenses and regulates individuals who provide commercial and residential HVACR services pursuant to the provisions of Business Regulation Article 9A, Annotated Code of Maryland, and COMAR 09.15. The Board is also authorized to adopt applicable regulations for the provision of HVACR services, including codes and minimum standards for the installation, alteration, remodeling, maintenance and repair of heating, ventilation, air conditioning, and refrigeration systems. The Board investigates complaints against licensees and complaints related to unlicensed practice. The Board may pursue disciplinary charges against an individual for violations of applicable laws or regulations, conduct hearings and, if warranted, impose administrative sanctions including suspension or revocation and/or assess a civil penalty up to $5,000 for each violation of a law and regulation.

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Proposed Regulations Currently Open for Public Comment

To register your comments with the Board, send your letter to the Maryland Board of Heating, Ventilation, Air Conditioning and Refrigeration Contractors, 500 N. Calvert Street, Room 481, Baltimore, MD 21202; call 410-230-6196; e-mail DLOPLHVACR-LABOR@maryland.gov; or fax 410-244-0977.

Contact the BoardContact the Board
Maryland Board of Heating, Ventilation, Air Conditioning and Refrigeration Contractors
500 North Calvert Street, Third Floor Payment Center
Baltimore, Maryland 21202-3651
410-230-6196
Fax: 410-244-0977
e-mail: DLOPLHVACR-LABOR@maryland.gov