Across 522 permits filed since 2025-01-25, the median is $5,590; half of projects fall between $3,500 and $15,616. 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
- replace meter box and grounding. 200 amp. service. CRS: 272562237Town of Greenwich · 2026-07-24$5,000
- upgrade service from 60 amp. to 200 amps. Existing 60 amp. CRS: 27903631. One meterTown of Greenwich · 2026-07-24$2,800
- Install a Generac 26KW generator with 200 amp ats and cantilevered gen standFairfield · 2026-07-24$23,000
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 electrical panel upgrade permits in Fairfield County, CT came in between $3,500 and $15,616. 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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