Across 579 permits filed since 2025-03-03, the median is $9,348; half of projects fall between $5,000 and $16,963. 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 Haven, CT actually reported when they pulled permits.
Recent filings
- Emergency water heater replacement 40 gallon standard gas tall 12 yearCity of New Haven · 2026-08-31$1,800
- Emergency water heater replacement 29 gallon standard gas tall 6 yearCity of New Haven · 2026-08-31$1,500
- Replace existing 40 Gallon electric water heater with Rheem PROE40M 40 gallon electric water heaterCity of New Haven · 2026-08-31$2,500
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 Haven, CT came in between $5,000 and $16,963. 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 New YorkBoiler / water heater in ConnecticutBoiler / water heater on Long Island