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.

• John Lerch Plumbing/Baltimore County 3 permits/to Oct 2022
• JPG SERVICES Plumbing/Howard County 3 permits/to Aug 2025
• Jr Alan E Hillenbrand Plumbing/Frederick County 3 permits/to Aug 2025
• JTWATERWORKS INC Plumbing/Howard County 3 permits/to Sep 2024
• K&B PLUMBING & HEATING, INC Plumbing/Frederick County, Howard County 3 permits/to Jan 2026
• KENNETH W FROCK Plumbing/Frederick County 3 permits/to Nov 2025
• K G JOHNSON INC Plumbing/Frederick County, Howard County 3 permits/to May 2024
• KLEPSIG PLUMBING LLC Plumbing/Howard County 3 permits/to Dec 2025
• K M REMODELING INC Plumbing/Frederick County 3 permits/to Feb 2026
• LEON RUSSELL & COMPANY LLC Plumbing/Frederick County, Howard County 3 permits/to Jun 2026
• LIVEWIRE ELECTRIC INC Plumbing/Anne Arundel County, Howard County 3 permits/to Jul 2026
• LOWES PLUMBING INC Plumbing/Anne Arundel County, Howard County 3 permits/to May 2026
• LUEYS EXCAVATION AND PLUMBING LLC Plumbing/Howard County 3 permits/to Apr 2025
• MARBIN GUTIERREZ Plumbing/Frederick County 3 permits/to Oct 2025
• MARYLAND WORX LLC Plumbing/Howard County 3 permits/to Jan 2024
• MAVERICK BUILDING COMPANY LLC Plumbing/Howard County 3 permits/to Feb 2026
• MD,ELECTRICIAN Plumbing/Anne Arundel County 3 permits/to Jul 2026
• MERRIMAN PLUMBING Plumbing/Anne Arundel County 3 permits/to Jun 2026
• MICHAEL BONSBY HVAC PLUMBING AND ELECTRICAL Plumbing/Howard County 3 permits/to May 2026
• MICHAEL H SCHILDWACHTER Plumbing/Frederick County 3 permits/to Apr 2024
• MICHAEL ROSE Plumbing/Frederick County 3 permits/to Feb 2024
• Michael Runk Plumbing & Heating L.L.C. Plumbing/Frederick County 3 permits/to Jul 2026
• MID-MARYLAND PLUMBING LLC Plumbing/Frederick County 3 permits/to Sep 2024
• MISTER FIX LLC Plumbing/Howard County 3 permits/to Aug 2026
• MOORE'S SYSTEMS MAINTENANCE LLC Plumbing/Howard County 3 permits/to Jul 2026
• Moreno contractor llc Plumbing/Frederick County 3 permits/to Aug 2026
• Mr Kibwe Shelton Plumbing/Frederick County 3 permits/to Sep 2026
• Nail It Construction, LLC Plumbing/Frederick County 3 permits/to Sep 2025
• PATAPSCO PIPELINE LLC Plumbing/Howard County 3 permits/to Feb 2025
• PEACE OF MIND CONTRACTING LLC Plumbing/Anne Arundel County 3 permits/to Aug 2026
• PEARLCO PLUMBING SOLUTIONS Plumbing/Anne Arundel County 3 permits/to Jul 2026
• PEARSON'S PLUMBING Plumbing/Frederick County 3 permits/to Mar 2026
• Piedmont Building Services Plumbing/Frederick County 3 permits/to May 2025
• Plumb/Gas 20020012434 Plumbing/Howard County 3 permits/to May 2026
• Plumb/Gas 20020093464 Plumbing/Howard County 3 permits/to Mar 2026
• PLUMBING EXPRESS Plumbing/Anne Arundel County 3 permits/to Jun 2026
• PREMIER WATER SERVICE Plumbing/Anne Arundel County 3 permits/to Jun 2026
• PRO-TECH MECHANICAL CONSTRUCTION LLC Plumbing/Howard County 3 permits/to Jul 2026
• PSL PLUMBING SERVICE Plumbing/Howard County 3 permits/to May 2026
• Quality Air & Heating, Inc Plumbing/Frederick County 3 permits/to Mar 2025
• R and S Constructions LLC Plumbing/Frederick County 3 permits/to Jul 2024
• Reliable Plumbing & Drain Service Plumbing/Frederick County 3 permits/to Feb 2025
• RELIABLE SOLUTIONS LLC Plumbing/Anne Arundel County 3 permits/to Jul 2026
• R E W Electric Plumbing/Frederick County 3 permits/to Apr 2026
• RICHARD CAREY RVCAREYS.COM Plumbing/Howard County 3 permits/to Sep 2024
• Richard L Tracy Plumbing/Frederick County 3 permits/to Feb 2026
• RINO'S HOME IMPROV Plumbing/Frederick County 3 permits/to Apr 2026
• ROGERS PLUMBING Plumbing/Anne Arundel County, Howard County 3 permits/to May 2026
• ROMAN PLUMBING SERVICES LLC Plumbing/Anne Arundel County, Howard County 3 permits/to May 2026
• SALAZAR PLUMBING SOLUTIONS LLC Plumbing/Anne Arundel County, Howard County 3 permits/to Jun 2026

Source: county permit records. Updated weekly.