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.

• F H FURR PLUMBING, HEATING & AIR CONDITIONING, INC HVAC/Howard County 56 permits/to Oct 2024
• GAITHERSBURG AIR CONDITIONING& HEATING Electrical/Howard County 56 permits/to Aug 2026
• Shelton Plumbing and Heating, Inc Plumbing/Anne Arundel County, Frederick County, Howard County 56 permits/to Aug 2026
• BLUE JAY ELECTRIC CO Electrical/Anne Arundel County, Howard County 55 permits/to Aug 2026
• BURIC'S HEATING & AIR CONDITIONING, INC. HVAC/Howard County 55 permits/to Sep 2026
• H & M SIGNS Sign/Anne Arundel County, Baltimore County, Howard County 55 permits/to Aug 2026
• JOHNSON CONTROLS SECURITY SOLUTIONS LLC Electrical/Howard County 55 permits/to Sep 2026
• RENOVATIONS EXPERT INC Electrical/Howard County 55 permits/to Aug 2026
• A DEAN ELECTRIC Pool & Spa/Howard County 54 permits/to Sep 2026
• CASTRO PROPERTY MANAGEMENT INC Electrical/Anne Arundel County, Frederick County, Howard County 54 permits/to Apr 2026
• DIAMOND DECKS & HOME IMPROVEMENT Deck & Patio/Howard County 54 permits/to Aug 2026
• MODERN COMFORT SYSTEMS Site/Anne Arundel County, Howard County 54 permits/to Aug 2026
• Nova Solar, Inc. Solar/Anne Arundel County, Frederick County, Howard County 54 permits/to Sep 2026
• PLUMBING MASTERED, LLC Plumbing/Howard County 54 permits/to Sep 2026
• PRO BUILT CONSTRUCTION Deck & Patio/Howard County 54 permits/to Aug 2026
• FA OUTDOOR SPACES LLC Deck & Patio/Anne Arundel County, Baltimore County, Frederick County, Howard County 53 permits/to Aug 2026
• P&M PLUMBING Plumbing/Anne Arundel County, Frederick County, Howard County 53 permits/to Sep 2026
• DESIGN KITCHEN AND BATH LLC Plumbing/Baltimore County, Howard County 52 permits/to Feb 2026
• Alpha Electric LLC Electrical/Frederick County, Howard County 51 permits/to Sep 2026
• PICTURE PERFECT HOME REPAIR AND REMODELING LLC Plumbing/Howard County 51 permits/to Jun 2024
• SNYDER ELECTRIC INC Electrical/Anne Arundel County, Frederick County, Howard County 51 permits/to Sep 2026
• STRAT SECURITY SYSTEMS Electrical/Anne Arundel County, Howard County 51 permits/to Aug 2026
• ABDULS PLUMBING SERVICE, LLC Plumbing/Anne Arundel County, Howard County 50 permits/to Jul 2026
• CLASSIC REMODELING CORP INC Deck & Patio/Anne Arundel County, Frederick County, Howard County 50 permits/to Aug 2026
• MCGUIRE PLUMBING & HEATING, INC. Plumbing/Anne Arundel County, Howard County 50 permits/to Sep 2026
• MID-ATLANTIC BATH SOLUTIONS Plumbing/Anne Arundel County, Howard County 50 permits/to Sep 2026
• NEFF ELECTRICAL SERVICES INC Electrical/Anne Arundel County, Howard County 50 permits/to Aug 2026
• P ELECTRIC SERVICE Electrical/Howard County 50 permits/to Sep 2026
• Venture Home Solar, LLC Solar/Frederick County, Howard County, Prince George's County 50 permits/to Sep 2026
• COMPLETE COMFORT LLC HVAC/Howard County 49 permits/to Apr 2026
• HATZEL & BUEHLER Electrical/Frederick County, Howard County, Prince George's County 49 permits/to Aug 2026
• HVAC DIRECT LLC HVAC/Anne Arundel County, Howard County 49 permits/to Aug 2026
• J&M SERVICES Sign/Anne Arundel County, Howard County 49 permits/to May 2026
• MICHAEL & SON SERVICES INC HVAC/Anne Arundel County, Howard County 49 permits/to Aug 2026
• TECHMARK CORPORATION Electrical/Anne Arundel County, Howard County 49 permits/to Sep 2026
• THOMPSONGAS, LLC Site/Howard County 49 permits/to Aug 2026
• ALL IN ELECTRIC INC Electrical/Anne Arundel County, Frederick County, Howard County 48 permits/to Sep 2026
• JBA'S PLUMBING Plumbing/Anne Arundel County, Frederick County, Howard County 48 permits/to Aug 2026
• Premium Construction Service Electrical/Frederick County, Howard County, Prince George's County 48 permits/to Sep 2026
• RHINE LAWN CARE & LANDSCAPING LLC Deck & Patio/Howard County 48 permits/to Aug 2026
• AVS PLUMBING & HEATING HVAC/Howard County 47 permits/to Oct 2024
• COLONIAL ELECTRIC CO INC Electrical/Anne Arundel County, Howard County 47 permits/to Aug 2026
• Mallick Mechanical Contractors Plumbing/Frederick County, Howard County 47 permits/to Aug 2026
• U S Home LLC Fire Protection/Baltimore County, Howard County 47 permits/to Jun 2024
• ZEPP PLUMBING & HEATING, INC. Plumbing/Frederick County, Howard County 47 permits/to Sep 2026
• ALLIED REMODELING CORPORATION Deck & Patio/Baltimore County, Howard County 46 permits/to Aug 2026
• JCM Electrical Inc HVAC/Anne Arundel County, Frederick County, Howard County 46 permits/to Aug 2026
• LGCY INSTALLATION SERVICES LLC Solar/Anne Arundel County, Howard County 46 permits/to Sep 2026
• VG ELECTRIC LLC Electrical/Anne Arundel County, Frederick County, Howard County 46 permits/to Aug 2026
• AMERICAN HOME CONTRACTORS Solar/Anne Arundel County, Frederick County, Howard County 45 permits/to Aug 2026

Source: county permit records. Updated weekly.