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.

All counties Anne Arundel County Baltimore County Frederick County Howard County Prince George's County

All trades Accessory Structure Deck & Patio Electrical Exterior Fire Protection Gas Interior HVAC Plumbing Pool & Spa Sign Site Solar Structural

MILLER FIRE PROTECTION INC Fire Protection/Anne Arundel County, Baltimore County 93 permits/to Sep 2026
RLT PLUMBING Gas/Anne Arundel County, Frederick County, Howard County 90 permits/to Aug 2026
CUSTOM WORKS INC Deck & Patio/Anne Arundel County, Howard County 88 permits/to Aug 2026
CLARKSVILLE ELECTRIC LLC Electrical/Anne Arundel County, Frederick County, Howard County 84 permits/to Sep 2026
Weisman Electric Company Electrical/Anne Arundel County, Frederick County, Howard County, Prince George's County 84 permits/to Sep 2026
MAGOTHY ELECTRIC CO INC Electrical/Anne Arundel County, Howard County 79 permits/to Sep 2026
MID ATLANTIC DECK & FENCE COMPANY Deck & Patio/Anne Arundel County, Howard County 79 permits/to Aug 2026
JEM ELECTRIC CO INC Electrical/Anne Arundel County, Howard County 78 permits/to Sep 2026
KOLB ELECTRIC INC Electrical/Anne Arundel County, Frederick County, Howard County 78 permits/to Sep 2026
CASTAWAY PLUMBING Plumbing/Anne Arundel County, Frederick County, Howard County 77 permits/to Sep 2026
HOWARD PLUMBING LLC Plumbing/Anne Arundel County, Howard County 77 permits/to Sep 2026
PASADENA SIGN CO INC Sign/Anne Arundel County, Howard County 77 permits/to Aug 2026
CAPITAL CITY PLUMBING Plumbing/Anne Arundel County, Howard County 75 permits/to Sep 2026
Noel's Fire Protection, LLC Fire Protection/Anne Arundel County, Baltimore County 75 permits/to Aug 2026
ECOMIZE USA LLC HVAC/Anne Arundel County, Frederick County, Howard County 72 permits/to Aug 2026
PRECISION ELECTRICAL SOLUTIONS Electrical/Anne Arundel County, Frederick County, Howard County 72 permits/to Aug 2026
W.L. STATON PLUMBING LLC Plumbing/Anne Arundel County 70 permits/to Sep 2026
BFPE INTERNATIONAL Electrical/Anne Arundel County, Baltimore County, Howard County 69 permits/to Sep 2026
MCALLISTER PLUMBING INC Plumbing/Anne Arundel County, Howard County 69 permits/to Sep 2026
QTEC LLC Electrical/Anne Arundel County, Frederick County, Howard County, Prince George's County 69 permits/to Aug 2026
BREEDEN MECHANICAL INC Plumbing/Anne Arundel County, Frederick County 68 permits/to Apr 2026
GENERATOR SUPER CENTER Electrical/Anne Arundel County 68 permits/to Aug 2026
STRATEGIC FACTORY Sign/Anne Arundel County, Frederick County, Howard County 68 permits/to Aug 2026
ABBOTT'S PLUMBING, INC Plumbing/Anne Arundel County, Howard County 67 permits/to Aug 2026
COASTAL HEATING AND AIR CONDIT HVAC/Anne Arundel County 67 permits/to Sep 2026
WINDSOR ELECTRIC CO INC Electrical/Anne Arundel County, Howard County 67 permits/to Aug 2026
ARK SIGN SERVICES INC Sign/Anne Arundel County, Howard County 66 permits/to Sep 2026
MARYLAND MECHANICAL SYSTEMS INC. Plumbing/Anne Arundel County, Howard County 65 permits/to Aug 2026
ST JOHN PROPERTIES INC HVAC/Anne Arundel County, Baltimore County, Frederick County, Howard County 65 permits/to Sep 2026
ALPHA PLUMBING LIMITED INC Plumbing/Anne Arundel County, Howard County 64 permits/to Sep 2026
BLAZEGUARD FIRE PROTECTION SVC Fire Protection/Anne Arundel County 62 permits/to Aug 2026
MARYLAND ELECTRIC INC. HVAC/Anne Arundel County 62 permits/to Sep 2026
M & N PLUMBING LLC Plumbing/Anne Arundel County, Howard County 62 permits/to Sep 2026
PEP UP INC Gas/Anne Arundel County 61 permits/to Aug 2026
COASTAL HEAT & AIR CONDT. HVAC/Anne Arundel County 60 permits/to Sep 2026
ANYTIME ELECTRICAL SERVICES & CO Electrical/Anne Arundel County, Frederick County, Howard County 59 permits/to Jul 2026
Bailey & Shipp Electric Accessory Structure/Anne Arundel County, Frederick County, Howard County 59 permits/to May 2026
D.W. BAHR PLUMBING & HTG INC Plumbing/Anne Arundel County 59 permits/to Aug 2026
CLARKSVILLE HEATING & AIR, LLC HVAC/Anne Arundel County, Howard County 58 permits/to Aug 2026
DAVCON ELECTRICAL SERVICES, LLC Electrical/Anne Arundel County, Frederick County, Howard County 57 permits/to Sep 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
H & M SIGNS Sign/Anne Arundel County, Baltimore County, Howard County 55 permits/to Aug 2026
PLUMBER AND GAS FITTER HVAC/Anne Arundel County 55 permits/to Jul 2026
CASTRO PROPERTY MANAGEMENT INC Electrical/Anne Arundel County, Frederick County, Howard County 54 permits/to Apr 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
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
SNYDER ELECTRIC INC Electrical/Anne Arundel County, Frederick County, Howard County 51 permits/to Sep 2026

Previous Next

Source: county permit records. Updated weekly.