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

PINNACLE HEATING AIR CONDITION HVAC/Anne Arundel County 5 permits/to Sep 2026
QUALITY HVAC MECHANICAL SVCS HVAC/Anne Arundel County 5 permits/to Aug 2026
QUICK SERVANT CO INC HVAC/Anne Arundel County, Howard County, Prince George's County 5 permits/to Sep 2026
REED HEATING AND AIR CONDITIONING, INC. HVAC/Howard County 5 permits/to May 2025
REYES HVAC HVAC/Howard County 5 permits/to Jul 2026
RWH ASSOCIATES LLC HVAC/Howard County 5 permits/to Jun 2026
SHAMROCK SERVICE CO. HVAC/Howard County 5 permits/to Feb 2026
SM MECHANICAL LLC HVAC/Howard County 5 permits/to Aug 2026
SSJ MECHANICAL INC. HVAC/Anne Arundel County, Howard County 5 permits/to Jun 2026
SS&R MECHANICAL INC. HVAC/Anne Arundel County, Howard County 5 permits/to Apr 2026
T MAYES PLUMBING AND HEATING LLC HVAC/Howard County 5 permits/to Apr 2026
TOTAL HOME COMFORT LLC HVAC/Anne Arundel County 5 permits/to Aug 2026
TOWSON MECHANICAL, INC. HVAC/Anne Arundel County, Howard County 5 permits/to Jun 2026
WORTH AND COMPANY HVAC/Howard County 5 permits/to Aug 2026
A3 MECHANICAL INC. HVAC/Howard County 4 permits/to Sep 2024
AIRSOURCE LLC HVAC/Howard County 4 permits/to May 2026
AIR ZONE SYSTEMS INC HVAC/Howard County, Prince George's County 4 permits/to Aug 2026
ALL HOMES HVAC HVAC/Howard County 4 permits/to Jun 2024
ANSTINE PLUMBING COMPANY HVAC/Howard County 4 permits/to Aug 2026
ARCTIC PLUMBING&AIR HVAC/Howard County 4 permits/to Jun 2024
A & R MECHANICAL, INC HVAC/Howard County 4 permits/to Apr 2026
ATLANTIC CONTRACTING GROUP INC HVAC/Howard County 4 permits/to Nov 2025
BAST SERVICES LLC HVAC/Anne Arundel County 4 permits/to Aug 2026
BGIS INTEGRATED TECHNICAL SERVICES US LLC HVAC/Frederick County, Howard County 4 permits/to May 2026
BILMIN COMPANY, INC HVAC/Howard County 4 permits/to Feb 2026
BOB PORTER CO INC HVAC/Howard County 4 permits/to Apr 2026
CAPSTONE MECHANICAL LLC HVAC/Howard County 4 permits/to Aug 2026
CAPTAIN FIRE PROTECTION CORP HVAC/Frederick County, Howard County 4 permits/to Mar 2026
CHESAPEAKE COMFORT SYSTEMS HVAC/Anne Arundel County, Howard County 4 permits/to Jun 2026
Christopher M Aquila HVAC/Frederick County 4 permits/to Feb 2024
COMFORT SYSTEMS INC HVAC/Howard County 4 permits/to Jan 2026
CONTINENTAL SERVICES HTG & A/C HVAC/Anne Arundel County 4 permits/to Aug 2026
COOLLAND TECH INC. HVAC/Howard County 4 permits/to Aug 2026
DOHERTY PLUMBING CO., INC. HVAC/Howard County 4 permits/to Mar 2026
DUNRITE MECHANICAL,LLC HVAC/Howard County 4 permits/to Apr 2024
Dustin L Burrill HVAC/Frederick County 4 permits/to Sep 2025
ELECTRICAL AUTOMATION SERVICES HVAC/Howard County 4 permits/to Apr 2025
ELLIS JONES PLUMBING & HEATING HVAC/Anne Arundel County 4 permits/to Aug 2026
FAIRFAX MECHANICAL HVAC/Howard County 4 permits/to Jan 2026
F & B HVAC HVAC/Howard County 4 permits/to Aug 2026
FIRST DOWN PLUMBING & DRAIN CLEANING LLC HVAC/Howard County 4 permits/to Sep 2026
GENERAL HEATING & COOLING INC HVAC/Howard County 4 permits/to Apr 2026
GRIFFS HEATING AND AIR HVAC/Howard County 4 permits/to Aug 2026
H&C INC. HVAC/Howard County 4 permits/to Jun 2025
HUGHES MECHANICAL LLC HVAC/Howard County 4 permits/to Jul 2026
INTERSTATE SERVICE CO., INC. HVAC/Howard County 4 permits/to Aug 2026
JACK'S PLUMBING, LLC HVAC/Howard County 4 permits/to Jun 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
K&B HVAC SERVICES LLC HVAC/Howard County 4 permits/to Nov 2024

Previous Next

Source: county permit records. Updated weekly.