Across 2,002 permits filed since 2025-03-09, the median is $16,620; half of projects fall between $9,000 and $25,536. 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 HVAC equipment.Village of Sleepy Hollow · 2026-09-04$18,000
- Wiring for 2 fam modular house including electric service, exterior lighting, light and switch in the attic, lighting and switches in the basement, & HVAC wiring.Village of Ossining · 2026-09-04$18,050
- As per City of New Rochelle pull permit for 3rd HVAC systemNew Rochelle · 2026-09-04$1,000
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 hvac / central air permits in Westchester County, NY came in between $9,000 and $25,536. 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
HVAC / central air in New JerseyHVAC / central air in New YorkHVAC / central air in ConnecticutHVAC / central air on Long Island