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

KPK ENTERPRISE HVAC/Anne Arundel County, Prince George's County 4 permits/to Sep 2026
L & B UNIVERSAL, INC. HVAC/Anne Arundel County 4 permits/to Mar 2026
LENNOX NATIONAL ACCOUNTS HVAC/Howard County 4 permits/to Jul 2026
LEUSCHNER HVAC/Prince George's County 4 permits/to Sep 2026
M & A HEATING & COOLING HVAC/Anne Arundel County 4 permits/to Aug 2026
MD MECHANICAL, LLC HVAC/Anne Arundel County, Howard County 4 permits/to Apr 2026
MECHANICAL ENGINEERING & CONST HVAC/Anne Arundel County 4 permits/to Sep 2026
MODERN COMMFORT SYSTEMS HVAC/Anne Arundel County 4 permits/to Jul 2026
MONTANO ELECTRIC LLC HVAC/Anne Arundel County, Howard County 4 permits/to Mar 2026
OLYMPIC AIRE SERVICES, INC. HVAC/Prince George's County 4 permits/to Sep 2026
PARKER FUEL COMPANY HVAC/Howard County 4 permits/to Dec 2025
PEDDICORD PLUMBING SERVICES HVAC/Frederick County, Howard County 4 permits/to Oct 2025
PENGUIN HEATING & AIR CONDITIONING T/A HVAC/Howard County 4 permits/to Sep 2026
PERRY HALL HEATING & AIR CONDITIONING HVAC/Howard County 4 permits/to Jul 2026
PIPCO AIR CONDITIONING & HEATING CO INC HVAC/Howard County 4 permits/to Jul 2026
RALO ENTERPRISE, LLC HVAC/Anne Arundel County, Howard County 4 permits/to Jul 2026
REAL ELECTRIC & HVAC LLC HVAC/Prince George's County 4 permits/to Aug 2026
RICK JONES PLUMBING & SEPTIC LLC HVAC/Anne Arundel County 4 permits/to Jun 2026
ROCCHI CONSTRUCTION INC HVAC/Howard County 4 permits/to Apr 2026
SHORELINE COMFORT, LLC HVAC/Anne Arundel County 4 permits/to Aug 2026
S & K HEATING AND AIR HVAC/Anne Arundel County 4 permits/to Sep 2026
SMITH AND COMPANY HVAC LLC HVAC/Anne Arundel County, Howard County 4 permits/to Aug 2026
STATEWIDE CONTRACTING SVCS INC HVAC/Anne Arundel County 4 permits/to Aug 2026
SUPERIOR COMFORT TECHNOLOGIES HVAC/Howard County 4 permits/to Aug 2026
VINCE MARINO PLUMBING & HEATING HVAC/Howard County 4 permits/to Jun 2025
WILL-AIR, LLC HVAC/Howard County 4 permits/to Nov 2024
0D & A SERVICE COMPANY HVAC/Howard County 3 permits/to Aug 2026
A-ADVANCED LLC. DBA JOHN G. WEBSTER HVAC/Anne Arundel County, Howard County 3 permits/to Aug 2026
ABILITY A/C & REFRIGERATION HVAC/Anne Arundel County 3 permits/to Jul 2026
ACA POWER & MECHANICAL HVAC/Prince George's County 3 permits/to Sep 2026
AIR-MAX MECHANICAL, INC HVAC/Howard County 3 permits/to Jun 2026
ALL ABOUT AIR, LLC HVAC/Anne Arundel County, Howard County 3 permits/to May 2026
ANTONIO CHRISTIANO CONSTRUCTION LLC HVAC/Howard County 3 permits/to Apr 2024
Architect 21040008625 HVAC/Howard County 3 permits/to Sep 2026
ARS DBA BLUE DOT SERVICES OF MARYLAND HVAC/Prince George's County 3 permits/to Sep 2026
AYATES PLUMBING & MECHANICAL, LLC HVAC/Howard County 3 permits/to Nov 2024
BAY BREEZE HEATING & COOLING HVAC/Anne Arundel County 3 permits/to Aug 2026
BAYFRONT HEATING & A/ C HVAC/Howard County 3 permits/to Aug 2026
BAYSIDE HEATING & COOLING LLC HVAC/Anne Arundel County 3 permits/to Jul 2026
BIG TIME COMFORT HVAC/Anne Arundel County, Howard County 3 permits/to Jul 2026
Bilder and Sons Plumbing HVAC/Frederick County 3 permits/to Apr 2024
BLUE WATER PLUMBING SERVICES HVAC/Anne Arundel County 3 permits/to Jun 2026
BUILDERGURU CONTRACTING INC HVAC/Howard County 3 permits/to Feb 2025
BUILDING SYSTEM SOLUTIONS LLC HVAC/Anne Arundel County 3 permits/to Apr 2026
CARSON PROPERTIES LLC DBA CARSON PLUMBING LLC HVAC/Anne Arundel County 3 permits/to Jul 2026
CLIMATAIR INC HVAC/Howard County 3 permits/to Apr 2025
CM HEATING AND COOLING MECHANICAL SERVICES INC HVAC/Howard County 3 permits/to Mar 2026
COMFORT CONTROL, INC. HVAC/Anne Arundel County 3 permits/to Aug 2026
COMPLETE CLIMATE SERVICES HVAC/Howard County 3 permits/to Jul 2026
COMPLETE COMFORT SERVICES LLC HVAC/Howard County 3 permits/to Dec 2025

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Source: county permit records. Updated weekly.