Across 296 permits filed since 2025-03-10, the median is $18,000; half of projects fall between $10,000 and $33,700. 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
- Remove and replace the existing furnace in the exact same location and footprint as original with new Goodman brand GR9S800803BN furnace, flue pipe and controls. The addition of cooling to the existing furnace with Goodman brand GLXS4BA361City of New Haven · 2026-09-08$23,000
- 200 amp 3 phase 4 wire panel 100 amp 3 phase 4 wire panel relocate fire alarm annunciator provide and install 3 lights in waiting area rework lights in conference room relocate exhaust fan in bath wiring 4 outlets in kitchen 10 duplex recepCity of New Haven · 2026-09-08$30,000
- New Haven Adult Education Center: Install and wiring HVAC equipment.City of New Haven · 2026-09-04$90,000
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 New Haven, CT came in between $10,000 and $33,700. 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