Plumbline / MD

MD contractor records

Source: Maryland Heating, Ventilation, Air-Conditioning and Refrigeration (HVACR) Board (records last checked 2026-07-12 to 2026-10-25) · Maryland Master Electricians Board (records last checked 2026-07-12 to 2026-10-25) · Maryland Plumbing Board (records last checked 2026-07-13 to 2026-10-25) · Maryland Home Improvement Commission (MHIC) (records last checked 2026-07-11 to 2026-10-25). 107,159 license records. Look up a specific contractor by license number or name, or use the official lookup: MD board.

How current these records are

• Maryland Heating, Ventilation, Air-Conditioning and Refrigeration (HVACR) Board: Maryland heating, air conditioning and refrigeration contractor records were last checked between July 12, 2026 and October 25, 2026; our copy re-checks each record about every 128 days, so a license issued or changed since its last check may not show here. Check the board's own lookup: https://www.dllr.state.md.us/cgi-bin/ElectronicLicensing/OP_search/OP_search.cgi?calling_app=HVAC::HVAC_qselect
• Maryland Master Electricians Board: Maryland master electrician records were last checked between July 12, 2026 and October 25, 2026; our copy re-checks each record about every 94 days, so a license issued or changed since its last check may not show here. Check the board's own lookup: https://www.dllr.state.md.us/cgi-bin/ElectronicLicensing/OP_search/OP_search.cgi?calling_app=ME::ME_qselect
• Maryland Plumbing Board: Maryland plumber records were last checked between July 13, 2026 and October 25, 2026; our copy re-checks each record about every 108 days, so a license issued or changed since its last check may not show here. Check the board's own lookup: https://www.dllr.state.md.us/cgi-bin/ElectronicLicensing/OP_search/OP_search.cgi?calling_app=PLM::PLM_qselect
• Maryland Home Improvement Commission (MHIC): Maryland home improvement records were last checked between July 11, 2026 and October 25, 2026; our copy re-checks each record about every 150 days, so a license issued or changed since its last check may not show here. Check the agency's own lookup: https://www.dllr.state.md.us/cgi-bin/ElectronicLicensing/OP_search/OP_search.cgi?calling_app=HIC::HIC_qselect

This is a public-records index, not a directory of recommendations. Entries are listed alphabetically; we do not rank contractors and nothing here is a "best of" or an endorsement.

Records index (page 1 of 215)

Alphabetical by name. Each entry is one license record and links to its public-record page.