Across 84 permits filed since 2025-05-02, the median is $26,795; half of projects fall between $15,800 and $40,632. 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 Westchester County, NY actually reported when they pulled permits.
Recent filings
- Install new siding materials as per the approved specificationsVillage of Ardsley · 2026-10-29$14,000
- Remove finishes (exterior siding and 2nd floor sheetrock) to accommodate future renovation work (no structural work at this time).White Plains · 2026-10-28$10,000
- FOR THE AMENDMENT OF PREVIOUSLY APPROVED PERMIT #26-59573 TO REMOVE THE FOLLWOING SCOPE: REMOVAL AND REPLACEMENT OF FRONT STOOP AND WALKWAY OF EXISTING DETACHED SINGLE FAMILY DWELLING. WORK TO PROCEED WITH THE FOLLOWING: REPLACEMENT OF SIDIGreenburgh · 2026-10-26$24,600
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 siding permits in Westchester County, NY came in between $15,800 and $40,632. 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
Siding in New YorkSiding in ConnecticutSiding on Long Island