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

JACK OF ALL TRADES USA DIV OF JAMES Deck & Patio/Howard County 4 permits/to Aug 2025
JACK'S PLUMBING, LLC HVAC/Howard County 4 permits/to Jun 2025
J AND S CUSTOM BUILT REMODELING LLC Deck & Patio/Howard County 4 permits/to Oct 2024
JE TURNBAUGH PLUMBING AND HEATING, LLC Plumbing/Howard County 4 permits/to Apr 2024
JJB ELECTRICAL LLC Deck & Patio/Anne Arundel County, Howard County 4 permits/to Apr 2026
J&J Electrical Works Inc Electrical/Frederick County, Howard County 4 permits/to Oct 2025
JJ HEATING & COOLING COMPANY LLC HVAC/Anne Arundel County, Howard County 4 permits/to Jun 2026
J. KITTELBERGER & SONS INC. HVAC/Howard County 4 permits/to Dec 2025
JOE HARLEY ELECTRIC Electrical/Anne Arundel County, Howard County 4 permits/to Jul 2026
JOY REMODELING LLC Deck & Patio/Howard County 4 permits/to Jul 2024
JR ELECTRICS LLC Electrical/Anne Arundel County, Howard County 4 permits/to Sep 2026
J. ZIMMERMAN ELECTRIC INC Electrical/Howard County 4 permits/to Jul 2026
KALMIA CONSTRUCTION Howard County 4 permits/to May 2025
K&B HVAC SERVICES LLC HVAC/Howard County 4 permits/to Nov 2024
K&B PLUMBING, INC Plumbing/Howard County 4 permits/to Sep 2024
KCI COMMUNICATIONS Electrical/Howard County 4 permits/to Oct 2025
K&G ELECTRICAL CONTRACTORS INC Electrical/Howard County 4 permits/to Aug 2025
KINETIC ELECTRIC Electrical/Howard County 4 permits/to Jan 2026
Kiser & Sons Construction Inc. Deck & Patio/Frederick County, Howard County 4 permits/to May 2026
K & K SIGN SERVICE INC Sign/Howard County 4 permits/to Nov 2025
KNJ CONSTRUCTION LLC Deck & Patio/Howard County 4 permits/to Nov 2025
K&T PLUMBING LLC Plumbing/Howard County 4 permits/to May 2026
LENNOX NATIONAL ACCOUNTS HVAC/Howard County 4 permits/to Jul 2026
LIBERTY ELECTRICAL CONTRACTORS INC Deck & Patio/Howard County 4 permits/to Jul 2025
LIBERTY FENCE AND RAILING Deck & Patio/Howard County 4 permits/to Aug 2024
LOAR HOME IMPROVEMENT LLC Plumbing/Frederick County, Howard County 4 permits/to Sep 2025
Lou Electrical Contracting LLC Accessory Structure/Anne Arundel County, Howard County 4 permits/to Jul 2026
MADDEN ELECTRIC INC Electrical/Anne Arundel County, Howard County 4 permits/to Jun 2026
MADHAN KUMAR NAGELLA Solar/Anne Arundel County, Howard County 4 permits/to Aug 2026
MAIN STREAM ELECTRIC Electrical/Anne Arundel County, Frederick County, Howard County 4 permits/to May 2026
MAIN STREET ELECTRIC CO INC Electrical/Howard County 4 permits/to Jun 2026
MALSTROM ELECTRIC INC Electrical/Howard County 4 permits/to May 2025
MARK BREW PLUMBING Plumbing/Howard County 4 permits/to Nov 2023
MARKING CONSTRUCTION, INC Plumbing/Howard County 4 permits/to Apr 2026
MARYLAND SIGN DESIGN Sign/Howard County 4 permits/to Jun 2025
MARYLAND SMART HOME LLC Deck & Patio/Howard County 4 permits/to May 2026
mchargue electric Electrical/Howard County 4 permits/to Jan 2024
MCPHERSON RS LLC Deck & Patio/Howard County 4 permits/to May 2026
MD MECHANICAL, LLC HVAC/Anne Arundel County, Howard County 4 permits/to Apr 2026
MELTON GRP Electrical/Howard County 4 permits/to Jun 2026
M. Gregory Home Building LLC Deck & Patio/Howard County 4 permits/to Mar 2026
MICHAEL G. ORR SERVICES Accessory Structure/Howard County 4 permits/to Aug 2026
MIKADA DESIGN GROUP Accessory Structure/Howard County 4 permits/to Dec 2025
MILL CREEK RENEWABLES LLC Site/Howard County 4 permits/to Jul 2024
Miller Electrical Services Electrical/Howard County, Prince George's County 4 permits/to Sep 2026
MMR PLUMBING Plumbing/Anne Arundel County, Frederick County, Howard County 4 permits/to May 2026
MONTANO ELECTRIC LLC HVAC/Anne Arundel County, Howard County 4 permits/to Mar 2026
MR PROSERVICES & CONSTRUCTION LLC Deck & Patio/Howard County 4 permits/to Apr 2026
MYERS HEATING & COOLING, INC. Accessory Structure/Howard County 4 permits/to Oct 2025
N.C.S.ELECTRIC LLC Electrical/Frederick County, Howard County 4 permits/to May 2025

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Source: county permit records. Updated weekly.