Maintenance guide · Maryland

Facility Maintenance Contractors in Maryland

194 maintenance contractors in 85 cities and towns, from OpenStreetMap (refreshed November 6, 2026).

How Many Maintenance Contractors Are There in Maryland?

We list 194 maintenance contractors in Maryland: 71 HVAC, 28 plumbing, 21 electrical, 36 roofing and 3 fire protection companies, across 85 {cities.length === 1 ? 'city' : 'cities and towns'}. Check each license and insurance certificate, and ask whether they take commercial work.

Updated November 6, 2026 · Source: OpenStreetMap (refreshed November 6, 2026).

71HVAC
28plumbing
21electrical
36roofing

By Category in Maryland

HVAC (71)Plumbing (28)Electrical (21)Roofing (36)Pest Control (5)Locks & Doors (39)

Cities and Towns

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Largest Cities in Maryland

Baltimore 23 Listed

A.J. Michaels

4512 York Road, Baltimore

HVACPhone listedWebsiteSource: OSM

Baltimore Lock

3950 Falls Road, Baltimore

Locks & DoorsPhone listedSource: OSM

Bel Air 9 Listed

Good News Electric

2235 East Churchville Road, Bel Air

ElectricalPhone listedWebsiteSource: OSM

Rockville 9 Listed

Key Tec LLC

15815 Crabbs Branch Way, Rockville

Locks & DoorsPhone listedWebsiteHours listedSource: OSM

Locksmith Rockville

110 North Washington Street, Rockville

Locks & DoorsPhone listedWebsiteSource: OSM

Aberdeen 7 Listed

CK Mechanical

1525 South Philadelphia Boulevard, Aberdeen

HVACPhone listedWebsiteSource: OSM

Mattingly Electric

3100 Aldino Road, Aberdeen

ElectricalPhone listedWebsiteHours listedSource: OSM

The Roof Center

1042 Hardees Drive, Aberdeen

RoofingPhone listedWebsiteSource: OSM

Essex 7 Listed

Washington Grove 7 Listed

Dmr Hvac

15892 Gaither Drive, Washington Grove

HVACSource: OSM

Edgewater 6 Listed

Bethany Air

171 Mayo Road, Edgewater

HVACPhone listedWebsiteHours listedSource: OSM

Forest Hill 6 Listed

Bryant Group

126 Industry Lane, Forest Hill

PlumbingPhone listedSource: OSM

Columbia 4 Listed

Pop-A-Lock

9693 Gerwig Lane, Columbia

Locks & DoorsSource: OSM

Edgewood 4 Listed

Abingdon Locksmith

2109 Emmorton Park Road, Edgewood

Locks & DoorsPhone listedWebsiteSource: OSM

Cove Electric

2101 Edgewood Road, Edgewood

ElectricalPhone listedWebsiteSource: OSM

HGH Mechanical

2107 Emmorton Park Road, Edgewood

HVACPhone listedWebsiteHours listedSource: OSM

Sobieski

2109 Emmorton Park Road, Edgewood

HVACPlumbingWebsiteSource: OSM

Maintaining a Building in Maryland

How many maintenance contractors are listed in Maryland?

We list 194 businesses in Maryland across 85 {cities.length === 1 ? 'city' : 'cities and towns'}: 2 facility maintenance, 71 HVAC, 28 plumbing, 21 electrical, 36 roofing, 3 fire protection, 1 elevators, 5 pest control, 39 locks & doors, 1 handyman. The most are in Baltimore (23), Bel Air (9), Rockville (9).

How do I check a contractor license in Maryland?

Search the state licensing board or the city or county that licenses the trade, and match the exact business name and license number. Requirements differ by trade. Ask for a certificate of insurance as well, sent directly by the contractor's insurance agent.

Which inspections does a building in Maryland need?

It depends on the building and local code. Fire extinguishers, sprinklers, alarms and emergency lights follow NFPA standards as adopted locally, and elevators and backflow preventers have their own local authorities. Ask your fire marshal, water utility and insurer.

Plan ahead with the maintenance schedule, the budget calculator and the license and insurance guide.

Listings: © OpenStreetMap contributors (ODbL) · Data last updated November 6, 2026 · Sources & method