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

COSSENTINO CONTRACTING CO Site/Anne Arundel County, Howard County 6 permits/to Sep 2026
DIXIE LAND ENERGY LLC Site/Anne Arundel County, Howard County 6 permits/to Mar 2026
DOMCO MECHANICAL INC HVAC/Anne Arundel County, Howard County 6 permits/to Aug 2026
EARL W. BOHLMAN & SONS, INC. Electrical/Anne Arundel County 6 permits/to Jul 2026
E. C. ERNST INC. Electrical/Anne Arundel County, Howard County, Prince George's County 6 permits/to Sep 2026
ELECTRICAL SERVICES LLC Electrical/Anne Arundel County, Howard County 6 permits/to Aug 2026
ELECTRICO INC Electrical/Anne Arundel County, Howard County 6 permits/to Jun 2026
ELITE M&M SERVICES LLC Deck & Patio/Anne Arundel County, Frederick County, Howard County 6 permits/to Aug 2026
FIRST CLASS PLUMBING, LLC Plumbing/Anne Arundel County, Howard County 6 permits/to Sep 2026
FRAZIER'S MECHANICAL SVCS LLC Gas/Anne Arundel County 6 permits/to Jul 2026
Fresh Air Concepts Electrical/Anne Arundel County, Frederick County, Howard County 6 permits/to Jul 2026
GAD PLUMBING & HEATING INC Plumbing/Anne Arundel County 6 permits/to Aug 2026
G & G ELECTRIC CO. Electrical/Anne Arundel County 6 permits/to Sep 2026
GoGreen Solutions INC Solar/Anne Arundel County, Frederick County 6 permits/to Aug 2026
GREGORINI CONTRACTING LLC Deck & Patio/Anne Arundel County, Howard County 6 permits/to Apr 2026
INFINITY ELECTRICAL CONTR. LLC Pool & Spa/Anne Arundel County 6 permits/to Sep 2026
INSTANT HEATING & A/C, INC. HVAC/Anne Arundel County 6 permits/to Aug 2026
JAR ELECTRIC LLC Electrical/Anne Arundel County, Frederick County, Howard County 6 permits/to Sep 2026
J&J ELECTRIC LLC Electrical/Anne Arundel County, Howard County 6 permits/to Aug 2026
J&P MECHANICAL SOLUTIONS LLC HVAC/Anne Arundel County, Howard County 6 permits/to Jul 2026
LAWVER PLUMBING COMPANY LLC Plumbing/Anne Arundel County, Howard County 6 permits/to Jul 2026
Leroy W Davis & Son Inc Deck & Patio/Anne Arundel County, Frederick County 6 permits/to Jun 2026
LIFE SAFETY SYSTEMS INC Accessory Structure/Anne Arundel County, Howard County 6 permits/to Aug 2026
LIN R. ROGERS ELEC CONTR INC Electrical/Anne Arundel County 6 permits/to May 2026
LS SYSTEMS Electrical/Anne Arundel County, Howard County, Prince George's County 6 permits/to Aug 2026
MADO ELECTRIC LLC Electrical/Anne Arundel County, Howard County 6 permits/to Aug 2026
MARTY FRANZ ELECTRIC Accessory Structure/Anne Arundel County, Howard County 6 permits/to Mar 2026
MCATEE LLC Plumbing/Anne Arundel County, Howard County 6 permits/to Apr 2026
MCR ELECTRICAL Electrical/Anne Arundel County 6 permits/to Sep 2026
NORRIS PLUMBING SERVICES HVAC/Anne Arundel County 6 permits/to Aug 2026
ORLANDO HOMES LLC Deck & Patio/Anne Arundel County, Howard County 6 permits/to Apr 2026
PJWD ENERGY LLC Solar/Anne Arundel County 6 permits/to Aug 2026
PRECISE BUILDING SERVICES Electrical/Anne Arundel County, Howard County 6 permits/to Sep 2026
PREMIUM CONSTRUCTION SVC INC Electrical/Anne Arundel County 6 permits/to Jul 2026
REAL CHILL HTG & A/C INC. HVAC/Anne Arundel County 6 permits/to Aug 2026
R.E. ROBERTSON PLUMBING & HTG HVAC/Anne Arundel County 6 permits/to Sep 2026
RIC'S PLUMBING & HEATING Plumbing/Anne Arundel County, Howard County 6 permits/to Aug 2026
ROYALTY CONTRACTORS, LLC Electrical/Anne Arundel County, Howard County 6 permits/to Jul 2026
RP Electric Pool & Spa/Anne Arundel County, Frederick County 6 permits/to Jul 2026
SCHAEFER HOMES LLC Site/Anne Arundel County 6 permits/to Jul 2026
SEVERN ELECTRIC INC HVAC/Anne Arundel County, Howard County 6 permits/to Aug 2026
S&R Heating and A/C Co., Inc Electrical/Anne Arundel County, Frederick County, Howard County 6 permits/to Apr 2026
STAMPER ELECTRIC Electrical/Anne Arundel County, Howard County, Prince George's County 6 permits/to Aug 2026
TIM BUTLER PLUMBING Plumbing/Anne Arundel County, Howard County 6 permits/to Aug 2026
TL CONTRACTING SERVICES INC Plumbing/Anne Arundel County 6 permits/to Jul 2026
T & R PLUMBING & HEATING INC. Gas/Anne Arundel County 6 permits/to Aug 2026
UNG. INC., DBA DELTA TELEPHONE & CABLING Electrical/Anne Arundel County, Howard County 6 permits/to Jun 2026
WALLACE ENTERPRISES LLC Electrical/Anne Arundel County 6 permits/to Jul 2026
WALTON & COMPANY, INC. Plumbing/Anne Arundel County, Howard County 6 permits/to Aug 2026
WINTHORPE DESIGN & BUILD INC Deck & Patio/Anne Arundel County, Howard County 6 permits/to Aug 2026

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Source: county permit records. Updated weekly.