Briggs & Stratton Platinum Dealer #1 Generator Dealer in Connecticut 400+ Installed Last Year & Installed 24/7 Emergency Service Serving All of Connecticut Founded 1992 — 30+ Years Industrial · Commercial · Residential CT Licensed & Fully Insured Briggs & Stratton Platinum Dealer #1 Generator Dealer in Connecticut 400+ Installed Last Year & Installed 24/7 Emergency Service Serving All of Connecticut Founded 1992 — 30+ Years Industrial · Commercial · Residential CT Licensed & Fully Insured
Electrical service upgrade Connecticut — licensed electrician Hartford County Konopka Electric
Electrical Service Upgrades — Torrington, CT

Electrical Service
Upgrades Connecticut.

100A to 800A. Residential, commercial, and industrial. Fully permitted, inspected, and coordinated with Eversource — Connecticut's most trusted electrical service upgrade contractor since 1992.

CT Licensed & Insured
Eversource Coordinated
Permitted & Inspected
Home Services Electrical Service Upgrades Connecticut
Licensed Electrician Service Upgrade — Torrington CT

Electrical Service Upgrade
Connecticut. Done Right.

An electrical service upgrade in Connecticut is one of the most critical electrical projects a home or business can undertake. Done wrong, it fails inspection, creates safety hazards, and voids insurance. Done right by Konopka Electric — it's permitted, inspected, coordinated with Eversource, and built to last.

Whether you're upgrading a 100-amp residential panel, adding a 200-amp service upgrade in Connecticut for a growing business, or installing an 800-amp industrial service for a manufacturing plant — we handle the full scope from disconnect to final inspection.

100A, 200A, 400A, 600A, and 800A upgrades
Residential, commercial, and industrial service upgrades
Full Eversource coordination and utility reconnection
Panel replacement, meter socket, and service entry
Connecticut electrical permit pulled and inspection passed
Load calculations provided before every project
30+
Yrs Experience
4.9★
Google Rating
800A
Max Industrial
Electrical service upgrade Connecticut — licensed electrician Konopka Electric Hartford County
Commercial Electrical Upgrade Hartford County

Every Service Size.
Every Application.

From a simple residential panel swap to a full industrial service upgrade in Connecticut — Konopka Electric handles every amperage, every application, fully permitted and inspected.

200 amp service upgrade Connecticut
Residential · Light Commercial
200A
Service Upgrade
The most common upgrade in Connecticut — replacing an outdated 100-amp service with a modern 200-amp panel. Required for EV chargers, generator hookups, home additions, and older homes with original panels.
Panel replacement and new meter socket
Eversource coordination included
Permitted and inspected
400 amp service upgrade Connecticut — commercial electrical upgrade Hartford County
Commercial · Light Industrial
400A
Service Upgrade
400-amp commercial service upgrades for growing businesses, restaurants, retail, medical facilities, and light industrial operations in Connecticut. Handles significant electrical load expansion without adding a second service.
Full load analysis before installation
Service entrance and meter upgrade
Distribution panel and subpanel work
Industrial service upgrade Connecticut — 800 amp switchgear installation Hartford County
Industrial · Heavy Commercial
800A+
Industrial Service
Industrial service upgrade Connecticut — 600A, 800A, and above installations for manufacturing plants, warehouses, and heavy commercial facilities across Connecticut. Three-phase systems, switchgear, and motor control centers.
Three-phase industrial service
Switchgear and MCC installations
Statewide industrial service coverage
Why Choose Konopka Electric

Connecticut's Trusted
Service Upgrade Electrician.

A licensed electrician service upgrade in Torrington CT requires more than just swapping a panel. It means coordinating with Eversource, pulling the correct permits, passing inspection, and doing the work to code. Konopka Electric has done this hundreds of times across Hartford and Litchfield County.

Always Permitted
Every service upgrade is permitted with the local AHJ. No exceptions. Unpermitted work fails real estate closings and voids insurance.
Eversource Coordination
We handle all Eversource utility disconnect and reconnect coordination — no back-and-forth for you.
Load Calculations First
We do a full load calculation before every project to spec the correct service size — no oversizing, no undersizing.
Same-Week Scheduling
Most service upgrades in Connecticut can be scheduled within the same week. We don't make you wait months.
30+
Yrs Upgrading CT
4.9★
Google Rating
800A
Max Industrial
1 Day
Typical 200A Job
"Just had an electrical upgrade from 100 to 200 Amps. Jim Konopka came out Wednesday and had his crew here Friday morning. They arrived exactly on time and performed the work professionally." — Dave Muirhead
Read All 62 Google Reviews →
Common Questions

Service Upgrade
Questions Answered.

A 200 amp service upgrade Connecticut typically costs $1,500–$3,500 depending on the complexity, panel location, and whether service entry work is required. Commercial 400-amp upgrades range from $3,000–$7,000. Industrial service installations (600A–800A) vary significantly based on scope. We provide free written quotes before any work begins — call (860) 496-0315 or request online.
Yes — always. A Connecticut electrical permit is required for every service upgrade. Any electrician who tells you otherwise is cutting corners. Unpermitted service upgrades fail real estate closings, can void homeowner's insurance, and create serious safety liability. Konopka Electric pulls every permit and coordinates every inspection.
Most 200-amp residential service upgrades in Connecticut take one day — including the Eversource disconnect and reconnect. You'll typically be without power for 4–6 hours. Commercial and industrial upgrades vary based on scope but we provide a clear timeline before every job.
Yes — we handle all Eversource coordination for every service upgrade in Connecticut. This includes scheduling the utility disconnect and reconnect, meeting Eversource requirements for the service entry, and ensuring the new service passes utility inspection. You don't have to manage any of that.
We do a full load calculation for every service upgrade project to determine the correct size. For most Connecticut homes, a 200-amp service is sufficient — including homes with EV chargers and generators. Small commercial buildings typically need 200–400 amps. Large commercial and industrial facilities are assessed individually. We'll never oversell you on more service than you need.
Need a Service Upgrade
in Connecticut?

Licensed electrician service upgrade Torrington CT — residential, commercial, and industrial. Serving Hartford County, Litchfield County, and all of Connecticut since 1992.

(860) 496-0315 Request a Free Quote

Connecticut's Electrical
Service Upgrade Specialists.

Electrical service upgrade Connecticut — residential 200A, commercial 400A, and industrial 800A. Licensed electrical contractor serving Hartford County, Litchfield County, and all of Connecticut since 1992.

(860) 496-0315 Request a Free Quote