Across 44 permits filed since 2025-01-25, the median is $4,100; half of projects fall between $2,000 and $9,800. 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 Litchfield County, CT actually reported when they pulled permits.
Recent filings
- 24 kw Generac standby generator with 200 Amp automatic transfer switch. Generator will be installed 90 feet from the right front corner of the house.Town of Watertown · 2026-07-21$15,000
- Service Upgrade from 100 amp overhead to 200 amp overhead in order for the addition of ACTown of Watertown · 2026-07-20$4,000
- Upgrade electrical service from 100 AMP to 200 AMPTown of Watertown · 2026-07-14$4,500
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 Litchfield County, CT came in between $2,000 and $9,800. 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