Across 132 permits filed since 2025-01-25, the median is $12,000; half of projects fall between $7,000 and $14,297. 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 Litchfield County, CT actually reported when they pulled permits.
Recent filings
- Direct replacement of Gas Furnace with Rheem Gas Furnace R802V0754A17UHSCAP going in existing location.Town of Watertown · 2026-07-22$9,727
- New Construction, with Kitchen sink, Washer hook up, 1 tub, 1 shower, 3 lavatories, 2 toilets, and 50-gallon electric hot water heater.Town of Watertown · 2026-07-22$12,000
- Install a Lennox ML13KC1 condenser with associated coil and a Thermopride oil furnaceTown of Watertown · 2026-07-16$17,500
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 Litchfield County, CT came in between $7,000 and $14,297. 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
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