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

PERFECT PLUMBING Plumbing/Anne Arundel County, Frederick County, Howard County 12 permits/to Sep 2026
PSI PLUMBING INC. Plumbing/Howard County 12 permits/to Dec 2025
Robert O'Donnell Plumbing/Frederick County 12 permits/to Jul 2026
Ryan V Ferreira Plumbing/Frederick County 12 permits/to Jun 2026
SAFFER PLUMBING, INC Plumbing/Frederick County, Howard County 12 permits/to Jul 2026
SCARDINA PLUMBING & HEATING Plumbing/Anne Arundel County 12 permits/to Sep 2026
STEPHEN J TANT PLUMBING LLC Plumbing/Anne Arundel County, Howard County 12 permits/to Jun 2026
THE PLUMBER, LLC Plumbing/Anne Arundel County, Frederick County, Howard County 12 permits/to Aug 2026
TRW PLUMBING SERVICE LLC Plumbing/Anne Arundel County, Howard County 12 permits/to Sep 2026
Amore Enterprises, LLC Plumbing/Frederick County 11 permits/to Nov 2024
Art's Plumbing Inc Plumbing/Frederick County 11 permits/to Sep 2025
BELTWAY AIR CONDITIONING, HEATING & PLUMBING Plumbing/Anne Arundel County 11 permits/to Sep 2026
BRADY PLUMBING LLC Plumbing/Anne Arundel County 11 permits/to Jul 2026
B-TEK LLC DBA B-TEK PLUMBING Plumbing/Anne Arundel County 11 permits/to Sep 2026
CYPRUS INC Plumbing/Howard County 11 permits/to Nov 2025
DAVID BUCHEIMER Plumbing/Frederick County 11 permits/to Jan 2026
D&I MECHANICAL CONT Plumbing/Howard County 11 permits/to Oct 2024
J & A CONSTRUCTION SERVICES, INC. Plumbing/Howard County 11 permits/to Aug 2026
JPLUMBING LLC Plumbing/Howard County 11 permits/to Jun 2026
McDevitt & Sons Plumbing and Heating, Inc. Plumbing/Frederick County, Howard County 11 permits/to May 2026
OLD LINE PLUMBING Plumbing/Anne Arundel County, Howard County 11 permits/to Aug 2026
PHI GROUP LLC Plumbing/Howard County 11 permits/to Jan 2026
Prospect plumbing llc Plumbing/Frederick County, Howard County 11 permits/to Apr 2026
SCARDINA PLUMBING & HTG, INC. Plumbing/Anne Arundel County 11 permits/to May 2026
SCHILDWACHTER PLUMBING Plumbing/Howard County 11 permits/to Aug 2026
SERVICE FORCE PLUMBING LLC. Plumbing/Frederick County, Howard County 11 permits/to Sep 2025
TRULY CUSTOM PLUMBING Plumbing/Anne Arundel County, Howard County 11 permits/to Aug 2026
TRUST PLUMBING AND HEATING LLC Plumbing/Anne Arundel County 11 permits/to Jul 2026
Wilbert Cruz Jimenez Plumbing/Anne Arundel County 11 permits/to Aug 2026
AMERICAN MASTERS PLUMBING CO LLC Plumbing/Howard County 10 permits/to Jun 2026
BLUESTREAM SERVICES IN Plumbing/Howard County 10 permits/to Aug 2026
BRENDAS PLUMBING SERVICES LLC Plumbing/Howard County 10 permits/to Jul 2026
Clark Drain Cleaning LLC Plumbing/Howard County 10 permits/to Jun 2026
DAVID CUMMINGS Plumbing/Frederick County 10 permits/to Aug 2026
G & R HOME RENOVATIONS INC Plumbing/Howard County 10 permits/to Aug 2026
HARVEY W. HOTTEL, INC. Plumbing/Frederick County 10 permits/to Apr 2026
JF PLUMBING & HEATING Plumbing/Anne Arundel County, Frederick County, Howard County 10 permits/to May 2026
KINSLEY CONSTRUCTION LLC Plumbing/Anne Arundel County, Frederick County, Howard County 10 permits/to Jun 2026
K&R Services Plumbing/Frederick County 10 permits/to Apr 2026
LHP Properties LLC Plumbing/Frederick County, Howard County 10 permits/to Aug 2026
MACKENZIE CONTRACTING CO LLC Plumbing/Howard County 10 permits/to Mar 2026
MOUNTAIN VIEW PLUMBING LLC. Plumbing/Frederick County 10 permits/to Nov 2024
PHELPS WATER CO. Plumbing/Anne Arundel County 10 permits/to Jul 2026
ROSEWOOD CONSTRUCTION LLC Plumbing/Frederick County, Howard County 10 permits/to Mar 2026
Snyder's Plumbing and Heating, LLC Plumbing/Frederick County, Howard County 10 permits/to Aug 2026
Todd Wilhide Plumbing/Frederick County 10 permits/to Aug 2026
Waterworld Plumbing LLC Plumbing/Frederick County, Howard County 10 permits/to Apr 2026
WILLIAM L PUMPHREY PLUMBING & HEATING INC. Plumbing/Howard County 10 permits/to Apr 2026
Alexander's Well Drilling Plumbing/Frederick County 9 permits/to Aug 2026
Andy Riggs Plumbing/Frederick County 9 permits/to Aug 2026

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Source: county permit records. Updated weekly.