Across 63 permits filed since 2025-01-25, the median is $6,000; half of projects fall between $3,500 and $12,750. 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
- *Electrical service upgrade from 100a. to 200a.Town of Westbrook · 2026-07-23$2,800
- Wire new house to code with 200 Amp UG ServiceTown of Westbrook · 2026-07-22$25,000
- Upgrade to 200 amp service; New service mast and 200 amp meter; socket for existing 200 amp service panel Emailed Eversource to approved this serviceHIGGANUM · 2026-06-08$2,900
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 Middlesex County, CT came in between $3,500 and $12,750. 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
Electrical panel upgrade in New JerseyElectrical panel upgrade in New YorkElectrical panel upgrade in Connecticut