Across 770 permits filed since 2025-05-02, the median is $6,500; half of projects fall between $3,500 and $18,150. 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 Fairfield County, CT actually reported when they pulled permits.
Recent filings
- new 200 amp. service, new meter, panel, breakers; add 3 outlets for sound in showroom. New 200 amp. serv. (CRS: 30319532). One new meterTown of Greenwich · 2026-10-30$6,000
- electrical wiring of 100 kw Generac generator and 4 200 amp transfer swtchs.Town of Greenwich · 2026-10-30$51,000
- install 26 kw Generator behind chimney; install 200 amp. ATS next to electrical meterTown of Greenwich · 2026-10-30$17,835
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 Fairfield County, CT came in between $3,500 and $18,150. 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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