Across 4,469 permits filed since 2025-03-10, the median is $8,000; half of projects fall between $4,050 and $14,958. 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 New York actually reported when they pulled permits.
Recent filings
- REPLACE THE EXISTING SINGLE BOILER SYSTEM WITH A NEW 6 BOILER UNITS SYSTEM AS SPECIFIED ON THE PLANS WITH THE CONDITIONS LISTED BELOWCity of Yonkers · 2026-09-08$380,000
- No fixtures - Boiler/Furnace Replacement Direct replacement gas fired steam boiler and gas fired atmospheric draft water heater with new in same location.Village of Larchmont · 2026-09-08$26,836
- Hookup water lines to new boiler and coilVillage of Dobbs Ferry · 2026-09-05$12,800
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 boiler / water heater permits in New York came in between $4,050 and $14,958. 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
Boiler / water heater in New JerseyBoiler / water heater in ConnecticutBoiler / water heater on Long Island