Across 130 permits filed since 2025-04-24, the median is $24,500; half of projects fall between $10,071 and $46,125. 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 Nassau County, NY actually reported when they pulled permits.
Recent filings
- DIRECT REPLACEMENT OF (10) WINDOWS AND (2) NEW DOORS **NO ELECTRICAL** **NO PLUMBING**City of Long Beach · 2026-10-22$20,000
- Replace porcelain floor on first and second floors. Replace window in master bedroom and living room. Replace front door.Village of Great Neck · 2026-10-14$20,000
- DIRECT REPLACEMENT OF (22) WINDOWSCity of Long Beach · 2026-10-13$50,000
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 Nassau County, NY came in between $10,071 and $46,125. 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