Across 75 permits filed since 2025-01-25, the median is $15,064; half of projects fall between $7,390 and $27,101. 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 Middlesex County, CT actually reported when they pulled permits.
Recent filings
- *Removing and replacing 4 windows, replacing like with like, no structural changes.Town of Westbrook · 2026-07-14$7,443
- *Removal and replacement of 8 windows (bedroom, kitchen, living room, bathroom) - no structural changesTown of Westbrook · 2026-07-06$27,307
- Installation o of 6 Harvey replacement windowsHIGGANUM · 2026-06-30$10,000
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 window replacement permits in Middlesex County, CT came in between $7,390 and $27,101. 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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