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.

• HOWARD COUNTY PLUMBING SERVICE LLC Plumbing/Howard County 25 permits/to Jul 2026
• IPSun Power Inc Solar/Anne Arundel County, Frederick County, Howard County 25 permits/to Aug 2026
• J.E. RICHARDS INC Electrical/Anne Arundel County, Frederick County, Howard County 25 permits/to Aug 2026
• MANTICI ELECTRICAL SERVICES LLC Accessory Structure/Frederick County, Howard County 25 permits/to Aug 2026
• MARQUESS HVAC HVAC/Anne Arundel County, Howard County 25 permits/to Aug 2026
• MASTER CARE ELECTRIC INC Electrical/Anne Arundel County, Howard County 25 permits/to Aug 2026
• MEC Inc. Electrical/Frederick County, Howard County 25 permits/to Jun 2026
• M TEC SOLUTIONS LLC Solar/Frederick County, Howard County 25 permits/to Sep 2026
• OLD TOWN CONSTRUCTION LLC Site/Howard County 25 permits/to Feb 2026
• SOUTHERN MARYLAND HEATING AND AIR, INC. HVAC/Howard County 25 permits/to Feb 2024
• TL BROWN CONTRACTOR LLC Plumbing/Anne Arundel County, Howard County 25 permits/to Aug 2026
• BARNETT ELECTRICAL CONTRACTORS LLC Electrical/Frederick County, Howard County 24 permits/to Apr 2026
• C & A INC. Electrical/Frederick County, Howard County 24 permits/to May 2026
• CLIMATECARE HVAC SERVICES LLC HVAC/Anne Arundel County, Howard County 24 permits/to Sep 2026
• DUN-RITE PLUMBING & HEATING Plumbing/Frederick County, Howard County 24 permits/to Aug 2026
• Family Plumbing Services LLC Plumbing/Frederick County, Howard County 24 permits/to Aug 2026
• HOMECRAFT BUILDERS INC Deck & Patio/Anne Arundel County, Howard County 24 permits/to Aug 2026
• KLM MECHANICAL HVAC/Anne Arundel County, Howard County 24 permits/to Sep 2026
• LRT PLUMBING SERVICES LLC Plumbing/Howard County 24 permits/to Aug 2026
• Masters Mid Atlantic, LLC HVAC/Howard County 24 permits/to May 2025
• MCR ELECTRIC CO Electrical/Frederick County, Howard County 24 permits/to Aug 2026
• NATIONAL SOLAR ENERGY CORPORATION Solar/Howard County 24 permits/to Aug 2025
• POHLMAN PLUMBING Plumbing/Anne Arundel County, Howard County 24 permits/to Aug 2026
• RD CONTRACTING LLC Deck & Patio/Anne Arundel County, Frederick County, Howard County 24 permits/to Jul 2026
• RUBIO ELECTRIC, LLC Electrical/Anne Arundel County, Howard County 24 permits/to Aug 2026
• SBC Landscaping Deck & Patio/Anne Arundel County, Baltimore County, Howard County 24 permits/to Jul 2026
• SPLASH FIBERGLASS POOL COMPANY LLC Pool & Spa/Anne Arundel County, Howard County 24 permits/to Aug 2026
• T & R PLUMBING AND HEATING, INC Plumbing/Howard County 24 permits/to Aug 2026
• VALLEY DECK & PATIO Deck & Patio/Anne Arundel County, Howard County 24 permits/to Aug 2026
• WL STATON PLUMBING HEATING AND COOLING, LLC Plumbing/Howard County 24 permits/to Aug 2026
• W & M ELECTRICAL SERVICES Electrical/Frederick County, Howard County 24 permits/to May 2026
• ADT COMMERCIAL Electrical/Anne Arundel County, Howard County 23 permits/to Jun 2026
• ALL AMERICAN MECHANICAL INC HVAC/Anne Arundel County, Howard County 23 permits/to Jun 2026
• ALLMASTER HOME SERVICES Deck & Patio/Anne Arundel County, Frederick County, Howard County 23 permits/to Aug 2026
• Berarducci Contracting Deck & Patio/Baltimore County, Howard County 23 permits/to Sep 2026
• BLAZEGUARD COMMERCIAL SERVICES Fire Protection/Anne Arundel County, Frederick County, Howard County 23 permits/to Aug 2026
• Blue Horizon Construction, LLC Pool & Spa/Frederick County, Howard County 23 permits/to Aug 2026
• CLASSIC DESIGN GROUP INC Deck & Patio/Frederick County, Howard County 23 permits/to Jun 2026
• DECK ARMOR LLC Deck & Patio/Anne Arundel County, Frederick County, Howard County 23 permits/to Sep 2026
• EASTERN SALES & ENGINEERING Electrical/Anne Arundel County, Howard County 23 permits/to Aug 2026
• Electrical Design Inc Electrical/Frederick County, Howard County 23 permits/to Mar 2026
• EMC POWER SOLUTIONS INC HVAC/Anne Arundel County, Frederick County, Howard County 23 permits/to Sep 2026
• FALCON HEATING & AIR CONDITIONING INC HVAC/Howard County, Prince George's County 23 permits/to Sep 2026
• KASCON INC HVAC/Howard County 23 permits/to Jun 2026
• K.HILL ELECTRIC LLC Electrical/Anne Arundel County, Frederick County, Howard County 23 permits/to Jun 2026
• MAGNOLIA PLUMBING, INC. Plumbing/Anne Arundel County, Howard County 23 permits/to Jul 2026
• MAP ELECTRIC Electrical/Anne Arundel County, Howard County 23 permits/to Aug 2026
• MD,Property Owner 0 Deck & Patio/Howard County 23 permits/to Mar 2025
• QUALITY ELECTRICAL WORK Accessory Structure/Frederick County, Howard County 23 permits/to May 2026
• RE ROBERTSON PLUMBING & HEATING Plumbing/Anne Arundel County, Howard County 23 permits/to Aug 2026

Source: county permit records. Updated weekly.