Exterior permits · Maryland

Where Maryland re-roofs and re-sides, permit by permit.

Roofing, siding, and window filings mark the envelope work that dates a house's condition and opens the roof for what goes on it next. Tradewinds observes them in county permit records.

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What the exterior record shows.
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Roof replacement

A new roof is the optimal moment for solar: the surface is fresh, and the homeowner is already mid-project.

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Siding and envelope

Siding work marks an older house getting a significant exterior spend, often with windows on the same job.

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Window replacement

Window filings are an efficiency spend, which is the same budget line as insulation and mechanical upgrades.

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Roof age on a parcel

A dated roof permit sets the clock for the next replacement on that property.

19179
exterior permits observed in Maryland, since January 2019

By county

Baltimore City 15552
Baltimore 1414
Howard 771
Frederick 749
Carroll 400
Anne Arundel 233
Prince George's 60

By year

2019 1925
2020 1976
2021 2434
2022 2756
2023 2981
2024 3048
2025 2141
2026 1918
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 exterior contractors

Other trades in Maryland

Exterior in other states

See last week's activity, free

Every Monday we publish last week's exterior 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.

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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.