Across 117 permits filed since 2025-03-03, the median is $13,430; half of projects fall between $8,206 and $20,303. 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
- Removal and replacement of 11 windows (bedrooms, office, dining room, kitchen, breezeway) - no structural changes.Town of Watertown · 2026-08-27$37,542
- replacing 7 existing windows (primarily south-facing) and bring them up to code. Two of the windows will be tempered glass and all the windows will be low-e argon filled. The replacement will be like-for-like regarding size and location iTown of Watertown · 2026-08-27$29,000
- 6 double hung windows. Remove 6 windows and replace with 6 Provia Double hung replacement windows, .24 u-factorsTown of Watertown · 2026-08-25$8,966
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 window replacement permits in Litchfield County, CT came in between $8,206 and $20,303. 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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