Electrical permits · Maryland

Where Maryland upgrades its electrical service, permit by permit.

Service upgrades, rewires, and dedicated circuits are the infrastructure every electrification product depends on. Tradewinds observes them in county permit records, tied to the property behind each filing.

Book a call
Four things the electrical record makes visible.

Service upgrades

A 200A upgrade is the capacity that solar, storage, EV charging, and heat pumps all need before they can be sold.

🔌

Dedicated circuits

A charger or appliance circuit marks a specific piece of equipment going in, named on the filing.

🏚️

Rewires on older stock

A rewire is a major spend on an older house, and it puts the electrician in the walls alongside every other trade.

🏢

The active shops

Electrical is the highest-volume permitted trade we hold, so the contractor picture is dense and current.

142957
electrical permits observed in Maryland, since January 2019

By county

Baltimore 60992
Howard 35884
Frederick 22535
Carroll 15031
Anne Arundel 8149
Baltimore City 339
Prince George's 27

By year

2021 7975
2022 27968
2023 26142
2024 25791
2025 28263
2026 26818
Contractors on record, by county

Every firm below filed permits we observed in that county. Counts are what we hold, so they reflect our coverage as much as the work happening there.

All Maryland electrical contractors

Other trades in Maryland

Electrical in other states

See last week's activity, free

Every Monday we publish last week's electrical permits for every county we cover. Browse this week's activity.

Working in Maryland?

Tell us your territory and we will bring the data to the first call. See the counties and trades we cover on the coverage page, or the firms doing this work in the contractor registry.

Book a call

Built from county permit filings. Not every filing names a trade cleanly, and counties differ in what they publish, so these counts reflect our coverage as much as the work happening on the ground.