Across 101 permits filed since 2025-05-02, the median is $5,500; half of projects fall between $4,000 and $12,000. 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 New London County, CT actually reported when they pulled permits.
Recent filings
- Replace Existing 200 amp panel with new 200 amp panel with Generator interlock kit for portable generatorTown of Waterford · 2026-10-30$3,400
- upgrading overhead service from 100 amp to 200 amp WO#: 30319828Montville · 2026-10-30$4,900
- Replace existing 200 Amp service with new 200 Amp Service CRS 30322196Town of Waterford · 2026-10-29$5,800
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 electrical panel upgrade permits in New London County, CT came in between $4,000 and $12,000. 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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