Across 440 permits filed since 2025-01-25, the median is $22,000; half of projects fall between $12,000 and $34,260. 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 Connecticut actually reported when they pulled permits.
Recent filings
- ***JIM IS WORKING ON THIS**** Existing sill plate and rim joist on rear addition of home has rot/damage. remove old portion of sill plate and rim joist. sill sealer to be utilized under pt lumber for sill plate, rim joist npt, flashing addTown of Southington · 2026-07-24$40,000
- Amend#1: Siding and bluestone patio resurfacing.Town of Greenwich · 2026-07-24$55,000
- Remove existing vinyl siding. Install 3/8 fan fold. Install new 7 in cedar impressions.Town of Westbrook · 2026-07-22$42,000
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 siding permits in Connecticut came in between $12,000 and $34,260. We exclude permits under $1,000, jobs filed as whole-house construction, and counties whose building departments don't reliably report valuations.