Contractor permit directory

Contractors observed in Maryland county permit records, grouped from public filings. Our observation is not complete: not every filing names a contractor, so a firm's real activity is almost always greater than what appears here.

• NVR INC Fire Protection/Baltimore County, Howard County 38 permits/to Dec 2023
• STILWELL MECHANICAL LLC Electrical/Anne Arundel County, Howard County, Prince George's County 38 permits/to Sep 2026
• VKB KITCHEN AND BATH INC Plumbing/Howard County 38 permits/to Sep 2026
• A & J ELECTRIC CO INC Electrical/Anne Arundel County, Howard County 37 permits/to Sep 2026
• ANGEL ELECTRICAL SERVICES LLC Electrical/Anne Arundel County, Frederick County, Howard County 37 permits/to Sep 2026
• Ash Electric LLC Electrical/Frederick County, Howard County 37 permits/to Aug 2026
• AUGUST SERVICES LLC Electrical/Anne Arundel County, Howard County 37 permits/to Jun 2026
• BURKARD HOMES LLC Structural/Howard County 37 permits/to Jul 2026
• GAF ENERGY LLC Solar/Anne Arundel County, Baltimore County, Howard County 37 permits/to Aug 2026
• GARTLAND PLUMBING INC Plumbing/Anne Arundel County, Howard County 37 permits/to Aug 2026
• Jaffe Electric Inc Electrical/Frederick County, Howard County 37 permits/to Feb 2026
• Best Integrated Systems Electrical/Anne Arundel County, Frederick County, Howard County 36 permits/to Sep 2026
• CAMPBELL & SON ELECTRIC Electrical/Howard County 36 permits/to Aug 2026
• CONTINENTAL ELECTRIC HVAC/Anne Arundel County, Howard County 36 permits/to Aug 2026
• Scherer Contracting Inc Plumbing/Frederick County, Howard County 36 permits/to Aug 2026
• WALL TO WALL CONSTRUCTION LLC Deck & Patio/Anne Arundel County, Frederick County, Howard County 36 permits/to Aug 2026
• ADT LLC DBA VINTAGE SECURITY Electrical/Howard County 35 permits/to Mar 2024
• CHUCK SUSSAN PLUMBING AND HVAC Plumbing/Howard County 35 permits/to May 2026
• ECONOMY PROPANE Gas/Anne Arundel County, Howard County 35 permits/to Sep 2026
• MCWHORTER CONSTRUCTION LLC Deck & Patio/Frederick County, Howard County 35 permits/to May 2026
• MELROY PLUMBING & HEATING, INC. Plumbing/Anne Arundel County, Howard County 35 permits/to Jun 2026
• PDR Homes LLC Accessory Structure/Frederick County, Howard County 35 permits/to Jul 2026
• RRF SOLUTIONS LLC Electrical/Anne Arundel County, Frederick County, Howard County 35 permits/to Aug 2026
• UNISOURCE SERVICES LLC Electrical/Frederick County, Howard County 35 permits/to Dec 2025
• A AFFORDABLE ELECTRIC SERVICE LLC Electrical/Howard County 34 permits/to Aug 2026
• ABSOLUTE LANDSCAPE & TURF SERVICES Deck & Patio/Howard County 34 permits/to Jun 2026
• ALL CLEAR PLUMBING AND DRAIN SERVICE, LLC Plumbing/Howard County 34 permits/to Aug 2026
• ARCO ELECTRIC INC Electrical/Frederick County, Howard County 34 permits/to Aug 2026
• CAPERS ELECTRICAL SERVICES LLC Solar/Anne Arundel County, Frederick County, Howard County, Prince George's County 34 permits/to Aug 2026
• C & D General Construction, Inc. Electrical/Frederick County, Howard County 34 permits/to Aug 2026
• CREST LOCK COMPANY INC Electrical/Anne Arundel County, Howard County 34 permits/to Sep 2026
• DIGITAL PROTECTION SERVICES INC Fire Protection/Anne Arundel County, Howard County 34 permits/to Jul 2026
• Energy Select LLC Solar/Frederick County, Howard County 34 permits/to Sep 2026
• Focused Plumbing & Gas, LLC Plumbing/Anne Arundel County, Frederick County, Howard County 34 permits/to Sep 2026
• Montgomery Decks Deck & Patio/Frederick County, Howard County 34 permits/to Sep 2026
• OWINGS HOME SERVICES Plumbing/Anne Arundel County, Frederick County, Howard County 34 permits/to Jun 2026
• RIDGLEY ELECTRIC Electrical/Frederick County, Howard County 34 permits/to Aug 2026
• Shipp Electric Electrical/Anne Arundel County, Howard County, Prince George's County 34 permits/to Sep 2026
• SOUTH CARROLL BACKHOE Plumbing/Howard County 34 permits/to May 2026
• A.J. MICHAELS COMPANY, INC HVAC/Anne Arundel County, Howard County 33 permits/to Aug 2026
• CAPITAL A ELECTRIC Electrical/Anne Arundel County, Howard County 33 permits/to Jul 2026
• CHESAPEAKE SYSTEMS SERVICE INC Electrical/Howard County 33 permits/to Aug 2026
• EXCEL MECHANICAL CONTRACTORS LLC HVAC/Howard County 33 permits/to Jul 2026
• HNH CARPENTRY 01 65612 Deck & Patio/Howard County 33 permits/to Jun 2026
• Westminster Electrical Services LLC Electrical/Anne Arundel County, Frederick County, Howard County 33 permits/to Aug 2026
• CAA ELECTRICAL SERVICES LLC Electrical/Anne Arundel County, Frederick County, Howard County 32 permits/to Aug 2026
• D.R. HORTON HOMES, INC. Deck & Patio/Howard County 32 permits/to Sep 2024
• GAC SERVICES HVAC/Anne Arundel County, Howard County, Prince George's County 32 permits/to Aug 2026
• MARQUIS PROPERTIES GROUP INC HVAC/Howard County 32 permits/to Aug 2026
• S & K ROOFING, SIDING & WINDOWS INC Interior/Frederick County, Howard County 32 permits/to Aug 2026

Source: county permit records. Updated weekly.