100 vs. 200 Amp Service: Panel Upgrades for Older Taunton Homes

If you own an older home around Taunton and the lights dim when the microwave and the AC kick on at the same time, your panel is probably telling you something. A lot of homes in this area were wired for a different era, and 100 amp service just wasn't built for how we use electricity now. Whether you actually need to go up to 200 amps depends on what you're running and what you're planning to add.

Here's how I look at it when I come out to a house.

What's the real difference between 100 and 100 amp service?

The amperage rating is basically how much electricity your home can safely pull at one time. A 100 amp service was plenty when a house had a fridge, some lights, and maybe a window unit. Add a modern kitchen, central air, an electric dryer, and now a car you're charging in the driveway, and you can run out of headroom fast.

A 200 amp service gives you more room to run those loads without tripping breakers or overloading the panel. It's not about the individual outlet being stronger. It's about the whole house having capacity to spare.

The number of open slots in your panel matters too. I see plenty of older panels that are already full, with double-tapped breakers crammed in because there was nowhere else to put a circuit. That's a sign the panel is maxed out regardless of the amperage on the label.

How do I know if my Taunton home needs an upgrade?

The honest answer is I need to look at it. But there are common triggers I see across older neighborhoods, from the Whittenton mills area to the homes out toward East Taunton.

Watch for these:

• Breakers that trip regularly with normal use
• Lights that dim or flicker when a big appliance starts
• A fuse box instead of breakers, which usually means the service is old
• No open slots left in the panel
• Plans to add a big load like an EV charger, a heat pump, or a hot tub

That last one is the big driver lately. The EV charger boom is real, and a Level 2 charger pulls a serious amount of power. Before I put one in, I look at what your panel can actually handle. Sometimes there's room. Sometimes the charger is the thing that pushes a 100 amp service past its limit and the upgrade comes first.

What's involved in a panel upgrade?

A panel swap is more than just bolting a new box to the wall. When I do a 200 amp panel upgrade in Taunton, MA, here's the general sequence.

First I coordinate the shutdown with the utility, because the power to the house has to come off at the meter. Then I pull the old panel, and often the old service entrance cable and meter socket come with it if they're undersized or corroded. Older homes near the coast and along the rivers here take a beating from moisture, and I see a fair amount of rusted equipment.

I set the new panel, run new feeders sized for the service, and re-land every circuit. This is where an older home gets interesting, because the existing wiring can be a mix of eras. I check the condition of what I'm reconnecting rather than just moving it over blind.

Grounding gets brought up to what the new service needs, including the ground rods and any bonding at the water line. Then the inspection happens before power goes back on, and the utility reconnects.

If your service needs a full refresh, my panel upgrade and replacement work covers the whole thing, from the meter to the last breaker.

Do I need a permit for this in Taunton?

Plan on this being permitted, inspected work. Electrical service changes get looked at, and the inspection is there to protect you. What exactly is required for your address and the timing of it is a conversation with the local wiring inspector, and they can confirm the specifics before you commit.

I handle the permitting and coordinate the inspection as part of the job, so you're not chasing paperwork. I'd rather manage that piece than have you guess at it.

What drives the cost of a panel upgrade?

I can't hand you a number over the internet, and I wouldn't trust anyone who did without seeing the house. Too much varies.

The things that move the price:

• Whether the meter socket and service entrance cable also need replacing
• How far the new panel sits from the meter
• The condition of the existing wiring I'm re-landing
• Whether the utility has to do work on their end
• Any grounding or bonding that needs to be brought current

On an older Taunton home, it's usually a combination of these, not just the panel itself. That's why I walk the job first. Once I've seen your setup, I'll give you a straight, itemized number so there are no surprises when the work is done.

When to Give Me a Call

If your breakers keep tripping, you're staring at an old fuse box, or you're about to buy an EV and want to know if your panel can take a charger, let's talk. I cover Taunton, Raynham, Bridgewater, Easton, and the surrounding towns, and I'll come out and look at what you've actually got before I quote anything.

Call or text (508) 622-5919 and we'll figure out whether you need the upgrade or just some breathing room in the panel you have.