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

JDL ELECTRIC Electrical/Anne Arundel County, Howard County 28 permits/to Aug 2026
MRT PLUMBING & CONSTRUCTION INC Plumbing/Anne Arundel County, Frederick County, Howard County 28 permits/to Sep 2026
POWER SOURCE ELECTRIC INC Electrical/Anne Arundel County, Howard County 28 permits/to Aug 2026
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
STATE WIDE SEPTIC TANK SERVICE Anne Arundel County 28 permits/to Sep 2026
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
COOK ELECTRIC, INC. Electrical/Anne Arundel County, Howard County 27 permits/to Aug 2026
D & P ELECTRICAL SERVICE INC HVAC/Anne Arundel County, Howard County 27 permits/to Aug 2026
Unlimited Plumbing LLC Plumbing/Anne Arundel County, Frederick County, Howard County 27 permits/to Jul 2026
BUILD U HOME LLC Deck & Patio/Anne Arundel County, Baltimore County, Howard County 26 permits/to Jul 2026
Dead Rock Contractor Services Electrical/Anne Arundel County, Frederick County 26 permits/to Jul 2026
DELAWARE ELEVATOR INC Electrical/Anne Arundel County, Frederick County, Howard County 26 permits/to Jun 2026
GRIFFITH BROTHERS INC Pool & Spa/Anne Arundel County, Howard County 26 permits/to Aug 2026
HJ POIST GAS COMPANY Gas/Anne Arundel County 26 permits/to Sep 2026
IDEAL ELECTRICAL SERVICES Electrical/Anne Arundel County, Frederick County, Howard County 26 permits/to Aug 2026
PMC SERVICE LLC Plumbing/Anne Arundel County, Frederick County, Howard County 26 permits/to Jul 2026
R & V ELECTRIC LLC. Electrical/Anne Arundel County, Howard County, Prince George's County 26 permits/to Sep 2026
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
ARNOLD ELECTRIC Electrical/Anne Arundel County, Howard County 25 permits/to Aug 2026
CLEAN AIR HEAT. & A/C CO INC HVAC/Anne Arundel 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
DYNAMIC PLUMBING & HEATING Plumbing/Anne Arundel County 25 permits/to Aug 2026
FIRELINE CORPORATION Fire Protection/Anne Arundel County, Baltimore County, Frederick County, Howard County 25 permits/to Aug 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
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
ROBERT F. BEALL & SONS, INC. Structural/Anne Arundel County 25 permits/to Sep 2026
TL BROWN CONTRACTOR LLC Plumbing/Anne Arundel County, Howard County 25 permits/to Aug 2026
Anthony & Sylvan Pools LLC Pool & Spa/Anne Arundel County, Baltimore County, Frederick County 24 permits/to Aug 2026
CLIMATECARE HVAC SERVICES LLC HVAC/Anne Arundel County, Howard County 24 permits/to Sep 2026
EDY NAJERAS Electrical/Anne Arundel County, Prince George's County 24 permits/to Sep 2026
HOMECRAFT BUILDERS INC Deck & Patio/Anne Arundel County, Howard County 24 permits/to Aug 2026
J P Electric Electrical/Anne Arundel County, Frederick County 24 permits/to Aug 2026
KLM MECHANICAL HVAC/Anne Arundel County, Howard County 24 permits/to Sep 2026
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
VALLEY DECK & PATIO Deck & Patio/Anne Arundel County, Howard County 24 permits/to Aug 2026
W.M. LAWSON ELECTRIC Pool & Spa/Anne Arundel County 24 permits/to Aug 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
BLAZEGUARD COMMERCIAL SERVICES Fire Protection/Anne Arundel County, Frederick County, Howard County 23 permits/to Aug 2026

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Source: county permit records. Updated weekly.