Across 1,566 permits filed since 2025-03-10, the median is $5,500; half of projects fall between $3,500 and $14,000. 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 Connecticut actually reported when they pulled permits.
Recent filings
- Replacement of electrical service and panel for 200 amp Installation of recess lights Replacement electrical devices Electrical rough in of basementGroton · 2026-09-07$10,000
- Add meter disconnect for new service location. Add new electrical panel for 200 amp service. Add sub panel to addition. Wire addition for lights, outlets and appliances.Simsbury · 2026-09-04$10,500
- install Generac 28 kw Nextgen generator; install a new 200 amp. meter/main outside. Existing 200 amp. service. CRS: 28733328 . One existing meterTown of Greenwich · 2026-09-04$28,000
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 Connecticut came in between $3,500 and $14,000. 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
Electrical panel upgrade in New JerseyElectrical panel upgrade in New York