Across 5,122 permits filed since 2025-05-04, the median is $8,088; half of projects fall between $4,000 and $15,000. 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
- REMOVE OLD WATER HEATER AND REPLACE WITH A BRAND NEW UNIT IN THE SAME LOCATION IN THE BASEMENTRochester · 2026-10-30$5,000
- DIRECT REPLACEMENT OF EXISTING FURNACE WITH GRVT8 Series 80% - Variable Speed - 80K BTU - Two Stage furnaceTown of Yorktown · 2026-10-30$3,446
- Replace existing gas fired boiler with new Burnham gas fired boiler.Village of Ossining · 2026-10-30$22,348
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 $4,000 and $15,000. 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