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

CORDELL ENTERPRISES, INC. HVAC/Frederick County, Howard County 3 permits/to Jan 2024
CORNERSTONE MECHANICAL SOLUTIONS, LLC HVAC/Anne Arundel County, Howard County 3 permits/to Jun 2026
CROPP METCALFE SERVICES- 000006 (A2) HVAC/Anne Arundel County 3 permits/to Jun 2026
DAILY PLUMBING AND DRAIN LLC HVAC/Howard County 3 permits/to Jul 2026
DorseykustomcarpentryInc HVAC/Frederick County 3 permits/to Jun 2026
E&A MECHANICAL LLC HVAC/Howard County 3 permits/to Jul 2026
EAST COAST MECHANICAL LLC HVAC/Howard County 3 permits/to Jun 2026
ENCORE CONSTRUCTION INC HVAC/Howard County 3 permits/to Jun 2025
ENOVA HEATING & AIR CONDITIONING. LLC HVAC/Anne Arundel County, Howard County 3 permits/to Jul 2026
EVERETT HALL HVAC/Prince George's County 3 permits/to Aug 2026
EXXEL MECHANICAL SERVICES HVAC/Howard County 3 permits/to Dec 2024
falcon heating and air condtioning HVAC/Frederick County 3 permits/to Aug 2026
FARNEN & DERMER HVAC/Howard County 3 permits/to Jun 2026
FIXED! HVAC SERVICES LLC HVAC/Anne Arundel County 3 permits/to Jun 2026
FIXED RIGHT & GUARANTEED LLC HVAC/Anne Arundel County 3 permits/to Aug 2026
FREEDOM MECHANICAL SERVICES HVAC/Anne Arundel County 3 permits/to Jul 2026
FUENTES GROUP INC HVAC/Howard County 3 permits/to Jan 2025
FULL SPECTRUM SERVICES INC HVAC/Howard County 3 permits/to Jun 2025
GLADIATOR PLUMBING LLC HVAC/Anne Arundel County, Howard County 3 permits/to Sep 2026
GLENN LUMECO ENERGY HVAC/Prince George's County 3 permits/to Sep 2026
GREENS RESIDENTIAL IMPROVEMENT LLC HVAC/Howard County 3 permits/to Aug 2025
GREGORY W NICHOLSON, II HVAC/Frederick County 3 permits/to Dec 2024
HARDESTY INC. HVAC/Howard County 3 permits/to Apr 2026
HARVEY CONSTRUCTION INC HVAC/Howard County 3 permits/to Apr 2026
HBW PROPERTIES INC HVAC/Howard County 3 permits/to Nov 2025
HOFFMAN SHEET METAL, INC HVAC/Anne Arundel County 3 permits/to Aug 2026
HOWARD HVAC LLC HVAC/Howard County 3 permits/to Jan 2025
HVAC UNLIMITED, INC HVAC/Prince George's County 3 permits/to Sep 2026
INNOVATION MECHANICAL INC HVAC/Howard County 3 permits/to May 2026
ITB HEATING AND AIR CONDITIONING LLC HVAC/Howard County 3 permits/to Aug 2026
JAMES A WHEAT HVAC/Frederick County 3 permits/to Apr 2024
JC DISLA HVAC, LLC HVAC/Howard County 3 permits/to Jan 2026
JHU APL HVAC/Howard County 3 permits/to Jul 2026
JM TAYLOR INC HVAC/Howard County 3 permits/to Mar 2026
JOHNSON HVAC LLC HVAC/Anne Arundel County 3 permits/to Aug 2026
JR MICHAEL G CAMPBELL HVAC/Frederick County 3 permits/to Dec 2024
J.S. CORCORAN HEATING & A/C HVAC/Anne Arundel County 3 permits/to Apr 2026
LANGENFELDER MECHANICAL INC HVAC/Howard County 3 permits/to May 2026
LC HEATING & AIR CONDITIONING HVAC/Howard County 3 permits/to Aug 2025
LLOYD T HAFLE HVAC/Frederick County 3 permits/to Sep 2025
LODRICK HEATING &COOLING HVAC/Anne Arundel County 3 permits/to Jul 2026
Mark Hadaway HVAC/Baltimore County 3 permits/to May 2023
MBS Mechanical HVAC/Anne Arundel County, Howard County 3 permits/to May 2026
METRO SERVICES HVAC HVAC/Howard County 3 permits/to Apr 2025
Michael P Considine HVAC/Baltimore County 3 permits/to Oct 2023
MID-ATLANTIC MECHANICAL, INC. HVAC/Anne Arundel County 3 permits/to Jun 2026
MSR HEATING AND COOLING LLC HVAC/Howard County 3 permits/to Dec 2025
MULTIMARINE SERVICES INC. HVAC/Anne Arundel County 3 permits/to Aug 2026
MY HEATING & COOLING LLC HVAC/Howard County 3 permits/to Dec 2025
NA RRF SOLUTIONS LLC HVAC/Prince George's County 3 permits/to Sep 2026

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Source: county permit records. Updated weekly.