100 TO 200 AMP ELECTRICAL SERVICE UPGRADES IN CT

More Power for the Way You Live Now.

Adding an EV charger, heat pump, central air, or a finished basement? Limitless Electric upgrades Connecticut and Western Massachusetts homes from 100-amp (or smaller) service to 200 amps, with permits, inspections, and Eversource coordination handled for you.

Do You Actually Need a Service Upgrade?

Your electrical service is the equipment that brings power into your home: the meter socket, the service entrance wiring, and the main panel. Its amperage rating, often 60, 100, or 200 amps, sets how much power your home can safely use at once.

Many older Connecticut homes still have 100-amp service or less. That may have been plenty when the home was built, but EV chargers, heat pumps, central air, hot tubs, and electric ranges add up quickly.

That doesn’t mean every home needs an upgrade. We start with a load calculation based on your home and the equipment you’re adding. Sometimes a load management device or a different charger setup solves the problem for less. If you don’t need a service upgrade, we’ll tell you.

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What a 200-Amp Service Upgrade Includes

A service upgrade replaces the equipment that limits how much power your home can use. Depending on your existing installation, it may include:

New meter socket rated for 200-amp service
New service entrance wiring, and the mast or conduit for overhead or underground service
New main panel, typically Eaton, or a SPAN smart panel for homeowners who want circuit-level monitoring (we’re a SPAN Certified Installer)
Grounding and bonding brought up to current requirements
Whole-house surge protection where appropriate
Permits, inspection, and Eversource coordination, including the utility disconnect and reconnect

We also identify and label the circuits we can verify, so your new panel is easier to understand.

Signs Your Home Has Outgrown Its Electrical Service

Not sure whether you need more capacity? These are common reasons homeowners call us about a service upgrade:

Your home has 100-amp service or less, or an old fuse box
You’re planning an EV charger, heat pump, central air, hot tub, or electric range
You’re finishing a basement or building an addition
Breakers trip when several large appliances run at once
Lights dim when the air conditioner or another large appliance starts
Your panel has no open spaces for new circuits
The meter socket or service mast is damaged, rusted, or pulling away from the house

Any of these is worth an evaluation. Only a load calculation tells you whether you actually need a larger service.

How Much Does a Service Upgrade Cost in Connecticut?

The cost of a service upgrade depends on your existing equipment and what the job requires. Overhead and underground services are different, and the condition of your meter socket, service entrance wiring, and grounding all affect the scope.

A complete upgrade may include a new meter socket, service entrance wiring, panel, breakers, grounding and bonding improvements, surge protection, permits, inspection, and utility coordination.

We evaluate your system and explain exactly what’s included before giving you a price. You’ll know what we’re recommending, why, and what it will cost before any work begins.

Financing through Wisetack is available on every quote. You can check your options in about a minute with no impact to your credit score. Learn about financing.

How a Service Upgrade Works

A service upgrade involves your utility, your town’s building department, and your electrician. We coordinate all of it so you know what to expect.

1. Evaluation & Load Calculation
We review your current service, panel, and wiring, along with anything you’re planning to add, and calculate the capacity your home actually needs.

2. Clear Options & Pricing
We explain whether you need a full service upgrade, a panel replacement, or a simpler fix, and you get upfront pricing before authorizing anything.

3. Permits & Utility Scheduling
We pull the electrical permit and coordinate with Eversource or your applicable utility to schedule the disconnect and reconnect.

4. Installation Day
Your power will be off while we install the new equipment. Many upgrades are completed in a single day, though utility scheduling can affect timing. We’ll give you a clear timeline in advance.

5. Inspection & Reconnection
After the installation passes inspection, the utility restores service. We test the system, review the work with you, and explain your new equipment.

Why Homeowners Choose Limitless Electric for Service Upgrades

A service upgrade is a big decision, and it should start with an honest evaluation, not a sales pitch.

We’ll tell you if you don’t need it. A load calculation comes first, and we’ll suggest a simpler option when one makes sense.
Licensed in Connecticut and Massachusetts. CT License ELC.0206906-E1 and MA License 23117-A.
Local and family-owned. Based in Windsor Locks and serving Hartford County, Tolland County, and nearby Massachusetts since 2021.
Upfront pricing, no salespeople. You’ll know the scope and price before work begins.
Quality equipment. Eaton panels as standard, with SPAN smart panels available.
Financing on every quote through Wisetack.

Find Out What Your Home Needs

Whether you’re adding an EV charger, planning a heat pump, or replacing an old 100-amp service, we’ll evaluate your system and tell you what makes sense, with clear pricing before any work begins.

Frequently Asked Electrical Service Upgrade Questions

What is the difference between a service upgrade and a panel upgrade?

A panel replacement swaps your breaker panel, often while keeping the same service amperage. A service upgrade increases your home’s available capacity, such as going from 100 amps to 200 amps, and may include a new panel, meter socket, service entrance wiring, grounding and bonding improvements, permits, and utility coordination.

How do I know if I need 200-amp service?

A load calculation is the only accurate way to know. We look at your home’s size, existing appliances, and anything you’re planning to add, such as an EV charger, heat pump, or central air, and determine the capacity you need.

Do I need a service upgrade to install an EV charger?

Not always. Many homes can add a Level 2 charger without an upgrade, sometimes with a load management device or a lower charging rate. We evaluate your panel and household loads first and only recommend an upgrade when it’s needed.

How long does a service upgrade take?

Many service upgrades are completed in a single day, with your power off during the installation. Utility scheduling for the disconnect and reconnect can affect timing. We’ll give you a clear timeline before the work is scheduled.

Do you handle the permit and Eversource coordination?

Yes. We pull the electrical permit, coordinate with Eversource or your applicable utility, and manage the inspection process as part of your approved project.

Will my power be off during the upgrade?

Yes. Replacing service equipment requires a planned shutdown. We’ll explain when the power will be off and what to expect on installation day.

Is financing available for a service upgrade?

Yes. Every Limitless Electric quote includes the option to pay over time through Wisetack. Checking your options takes about a minute and does not affect your credit score.

Do you do service upgrades in Massachusetts?

Yes. We hold Massachusetts License 23117-A and serve homeowners in Longmeadow, East Longmeadow, and Agawam, in addition to our Connecticut service area.

What panel brands do you install?

Eaton is our standard panel for residential service upgrades. As a SPAN Certified Installer, we also offer SPAN smart panels for homeowners who want circuit-level monitoring and control.

Areas We Serve

These are our primary service areas. We serve throughout Hartford County, Tolland County, and many surrounding communities; contact us to confirm availability.