Across 334 permits filed since 2025-04-30, the median is $9,906; half of projects fall between $4,000 and $24,774. Figures are permit valuations reported to building departments. National cost guides answer this question with averages from other markets; these numbers are what homeowners in Erie County, NY actually reported when they pulled permits.
Recent filings
- REMOVE AND REPLACE 7 WINDOWS, LIKE FOR LIKE, SAME SIZE, NO STRUCTURAL CHANGESBuffalo · 2026-10-28$10,976
- masonry infill at existing window locations on the south facade <div><br></div><div>*** Digeplan *** *** work by owner per attached affidavit *** </div>Buffalo · 2026-10-28$10,000
- To an existing 2 story mixed use building install new windows and doors, replace block wall in basement where needed{at windows}, repair/replace drywall throughout, flooring throughout.<div>remove and replace vinyl siding on sides rear and Buffalo · 2026-10-27$234,900
How to read these numbers
Permit valuations are the project cost the applicant reports to the building department. They skew slightly low — nobody rounds up for the permit fee — and scope varies, so the middle-half range is the honest picture: half of all window replacement permits in Erie County, NY came in between $4,000 and $24,774. We exclude permits under $1,000, jobs filed as whole-house construction, and counties whose building departments don't reliably report valuations.
Same project, other places
Window replacement in New YorkWindow replacement in ConnecticutWindow replacement on Long Island