Across 697 permits filed since 2025-05-02, the median is $14,500; half of projects fall between $6,935 and $26,340. 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 Hartford County, CT actually reported when they pulled permits.
Recent filings
- Removal and replacement of 14 windows (bedrooms, hallway, bathrooms/ 1 tempered, landing, dining room, living room, kitchen) - no structural changes. Your application for a Building Permit has been reviewed for compliance with the 2022 StaSimsbury · 2026-10-30$35,789
- In the living room we would be replacing the windows and doors with new ones in the same location, putting a gas fireplace on the exterior wall, and replacing the interior finishes of the living room. in the powder room we would be rearrangSimsbury · 2026-10-30$120,000
- Replacing (37) Series 4000 Windows, (4) Entry Doors, U-Factor 0.28 or lower. No Structural Changes.Town of Granby · 2026-10-30$50,694
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 Hartford County, CT came in between $6,935 and $26,340. 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
Window replacement in New YorkWindow replacement in ConnecticutWindow replacement on Long Island