Data report
736 windows / siding permits were filed in Nyc - Brooklyn during 2025, pulled by 339 different contractors. These are the most active, ranked by the number of permits each pulled. Every figure comes from public building-permit records, not self-reported activity.
Year over year
Windows / Siding permits in Nyc - Brooklyn rose 68% versus 2024 — from 438 to 736 permits.
Windows / Siding leaderboard · 2025
Method
Every figure is drawn from public building-permit records filed in Nyc - Brooklyn. A permit is counted once, by the contractor named on it. Installer names are grouped so minor spelling and entity-suffix variations (for example “Inc” vs “Inc.”) count as one company. This is recorded work, not survey data or self-reported claims, and it is reproducible from the public record.
Caveats
A permit reflects a job filed with the local building department. It is a strong proxy for installation activity but is not identical to completed work. Coverage is built from the records each jurisdiction publishes, so a contractor working without listing a name on the permit will not appear here.
See the full permit-verified track records behind these numbers: windows / siding and other contractors in Nyc - Brooklyn, or browse all of New York.