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.

• RAPID ROOTER PLUMBING COMPANY Plumbing/Anne Arundel County, Howard County 28 permits/to Aug 2026
• SOLAR GAINES LLC Solar/Anne Arundel County, Baltimore County, Howard County, Prince George's County 28 permits/to Aug 2026
• AMERICAN DECK INC Deck & Patio/Howard County 27 permits/to Jun 2026
• ANDREW'S ELECTRICAL SERVICE INC Electrical/Howard County 27 permits/to May 2026
• Bailey and Shipp Electric Accessory Structure/Frederick County, Howard County 27 permits/to Oct 2025
• BOOTHES HEATING AND AIR Electrical/Anne Arundel County, Howard County 27 permits/to Aug 2026
• BRADLEY BUILDING SERVICES LLC Plumbing/Anne Arundel County, Howard County 27 permits/to Aug 2026
• BRADLEY ELECTRIC INC Electrical/Anne Arundel County, Frederick County, Howard County, Prince George's County 27 permits/to Sep 2026
• CLEAN AIR HEATING AND AIR CONDITIONING HVAC/Howard County 27 permits/to Aug 2026
• COOK ELECTRIC, INC. Electrical/Anne Arundel County, Howard County 27 permits/to Aug 2026
• Creative Exteriors Plus LLC Deck & Patio/Frederick County, Howard County 27 permits/to Jul 2026
• DESIGN FLOW HEATING & COOLING LLC HVAC/Howard County 27 permits/to Aug 2026
• D & P ELECTRICAL SERVICE INC HVAC/Anne Arundel County, Howard County 27 permits/to Aug 2026
• FREEDOM FENCE + DESK ACQUISITION LLC Deck & Patio/Howard County 27 permits/to Jul 2026
• GREEN ELECTRIC SOLUTIONS LLC Electrical/Howard County 27 permits/to Aug 2026
• HASSAN PLUMBING AND HEATING LLC Plumbing/Howard County 27 permits/to Jun 2026
• KJS GRANITE & CABINETS LLC Deck & Patio/Howard County 27 permits/to Aug 2026
• NATIONAL ELECTRICAL SERVICE Electrical/Howard County 27 permits/to Jul 2026
• NV Homes Fire Protection/Baltimore County, Howard County 27 permits/to Dec 2025
• ON POINT HVAC SERVICES LLC HVAC/Howard County 27 permits/to Aug 2026
• REDSTEEL H.V.A.C. INC. HVAC/Howard County 27 permits/to Oct 2024
• SINH HA GENERAL CONTRACTOR HVAC/Howard County 27 permits/to Aug 2026
• TRI POWER ELECTRICAL CONTRACTOR LLC Electrical/Howard County 27 permits/to Jun 2026
• Unlimited Plumbing LLC Plumbing/Anne Arundel County, Frederick County, Howard County 27 permits/to Jul 2026
• BUCH CONSTRUCTION INC Site/Baltimore County, Howard County 26 permits/to May 2026
• BUILD U HOME LLC Deck & Patio/Anne Arundel County, Baltimore County, Howard County 26 permits/to Jul 2026
• COASTAL BUILDERS INC Deck & Patio/Howard County 26 permits/to Aug 2026
• DAY OR NIGHT HOME AND HEARTH Plumbing/Howard County 26 permits/to Apr 2026
• DELAWARE ELEVATOR INC Electrical/Anne Arundel County, Frederick County, Howard County 26 permits/to Jun 2026
• DENNISON PLUMBING & HEATING INC. Plumbing/Frederick County, Howard County 26 permits/to May 2026
• D&I MECHANICAL HVAC/Howard County 26 permits/to Aug 2026
• ELITE PLUMBING & HOME SERVICES Plumbing/Howard County 26 permits/to Aug 2026
• GRIFFITH BROTHERS INC Pool & Spa/Anne Arundel County, Howard County 26 permits/to Aug 2026
• IDEAL ELECTRICAL SERVICES Electrical/Anne Arundel County, Frederick County, Howard County 26 permits/to Aug 2026
• JG Construction Co. Accessory Structure/Frederick County, Howard County 26 permits/to Sep 2025
• J.M. MULLEN ELECTRICAL SERVICES INC Electrical/Howard County 26 permits/to Sep 2026
• KEYSTONE CUSTOM HOMES, INC. Site/Howard County 26 permits/to Jun 2026
• Mast Construction LLC Deck & Patio/Frederick County, Howard County 26 permits/to Sep 2026
• PMC SERVICE LLC Plumbing/Anne Arundel County, Frederick County, Howard County 26 permits/to Jul 2026
• Pole Buildings Plus Deck & Patio/Frederick County, Howard County 26 permits/to Aug 2026
• R & V ELECTRIC LLC. Electrical/Anne Arundel County, Howard County, Prince George's County 26 permits/to Sep 2026
• Solar Energy Services, Inc. Solar/Frederick County, Howard County 26 permits/to Dec 2025
• THOMAS D. STERN AIR EXPERTS INC HVAC/Anne Arundel County, Howard County 26 permits/to Aug 2026
• TRISTAR ELECTRIC INC Electrical/Anne Arundel County, Frederick County, Howard County, Prince George's County 26 permits/to Aug 2026
• WME LLC Electrical/Howard County 26 permits/to Aug 2026
• ANTHONY & SYLVAN CORP Pool & Spa/Howard County 25 permits/to Sep 2026
• ARNOLD ELECTRIC Electrical/Anne Arundel County, Howard County 25 permits/to Aug 2026
• CORB ELECTRIC LLC Electrical/Anne Arundel County, Frederick County, Howard County, Prince George's County 25 permits/to Sep 2026
• FIRELINE CORPORATION Fire Protection/Anne Arundel County, Baltimore County, Frederick County, Howard County 25 permits/to Aug 2026
• FIRESIDE STONE & PATIO INC Fire Protection/Frederick County, Howard County 25 permits/to Sep 2026

Source: county permit records. Updated weekly.