Electrical Panel Upgrades: When Your Home Needs More Power

Your electrical panel decides how much your home can do at once. Many houses in Central and Southside Virginia still run on 100-amp service, or less, that was sized long before EV chargers, heat pumps, induction ranges and home offices. When the panel runs out of capacity or space, everything you want to add starts with the same question: does the panel need to be upgraded?

This guide explains when an upgrade is the right answer, when it isn’t, what the code Virginia enforces now requires, and what the day of the work looks like.

Signs Your Panel Needs Attention

• You’re planning a big new load: an EV charger, a heat pump, a hot tub, a well pump, a shop or an addition.
• The panel is full, with no open spaces and tandem breakers already squeezed in.
• Breakers trip when several large appliances run together.
• It’s a fuse box, or a panel brand with a known history of problems (Federal Pacific Stab-Lok, Zinsco, some Challenger models).
• It shows damage: rust from water getting in, scorched breakers, or a panel that is warm or buzzing.
• An insurer or home inspector flagged it.

Upgrade, Replace or Neither?

“Panel upgrade” covers three different jobs, and the right one depends on what a load calculation shows:

• Panel replacement: same service size, new panel. The answer for a damaged or problem-brand panel when capacity is fine.
• Service upgrade: a larger service, typically 100 to 200 amps, which means a new panel, a new meter base and often new service conductors, coordinated with your utility.
• No upgrade at all: sometimes a subpanel, a load-management device or setting an EV charger to a lower current does the job for far less.

We start with a load calculation based on the National Electrical Code method, using your home’s square footage, heating and cooling, water heater, range and other appliances. It tells us what the service actually needs, so you don’t pay for capacity you won’t use or install a charger the service can’t carry.

What the Code Requires on a New Panel or Service

Virginia enforces the statewide building code, currently the 2021 edition, which adopts the 2020 National Electrical Code. When a service is replaced, a few requirements surprise homeowners:

• Surge protection. The 2020 NEC requires a surge protective device on the service of a home when the service is installed or replaced. See whole-home surge protection.
• An outdoor emergency disconnect. For one- and two-family homes, the 2020 NEC requires an emergency disconnect at a readily accessible outdoor location, so firefighters can shut off power without entering. Many upgrades use a meter-main combination to meet it.
• Current GFCI and AFCI protection on circuits that are replaced or extended.
• Grounding and bonding brought up to current requirements.

Virginia adopts the NEC with some state amendments, and local building officials interpret it, so we confirm what your locality expects before the work starts.

A service upgrade needs a permit and inspection from your locality, whether that’s the City of Lynchburg, Campbell, Bedford, Amherst, Pittsylvania, Franklin or Roanoke County. We pull the permit and meet the inspector.

What Upgrade Day Looks Like

1. Before the day: we coordinate with your utility (Appalachian Power, Dominion Energy or your electric cooperative) for the disconnect and reconnect, and schedule the work.
2. The work: power is off for most of a day while the old panel and meter base come out and the new equipment goes in. Every circuit is moved over, labeled and checked.
3. Inspection and reconnect: depending on the locality and the utility, power may be restored the same day or after the inspection.

We’ll tell you ahead of time what will be off and for how long, so you can plan for refrigerators, medical equipment and anyone working from home.

Planning for What’s Next

If you’re upgrading anyway, think a few years ahead. A second EV, a heat pump replacing a gas furnace, a generator inlet or a home standby generator all go in more easily, and for less, when the panel is laid out for them now. Ask us to leave spaces for the circuits you’re likely to add. If backup power is on your list, see home standby generators.

Wondering whether your panel can keep up? Book a visit on our booking page and we’ll do the load calculation before recommending anything.

Frequently Asked Questions

Do I need 200-amp service?

Not always. Many homes do fine on 100 or 150 amps, especially with gas heat and appliances. A load calculation decides it, not the age of the house or a rule of thumb.

Can I add an EV charger without upgrading my panel?

Often, yes. A charger set to a lower current or a load-management device can avoid a service upgrade. See our home EV charger guide.

Is a Federal Pacific or Zinsco panel dangerous?

Both brands have a long record of breakers that may not trip when they should. Many electricians and insurers recommend replacing them. If you have one, have it evaluated.

How long does a panel upgrade take?

The work itself is usually one day. Permits, utility scheduling and the inspection add time before and after, and vary by locality.

Will my homeowner’s insurance care?

Some insurers ask about panel brand and age, especially for fuse boxes and problem brands. A permitted, inspected upgrade gives you paperwork to show them.

Why Homeowners Choose Progress and Heritage for Panel Upgrades

Our licensed, insured, background-checked electricians handle the load calculation, permit, utility coordination, installation and inspection, and leave every circuit labeled. We work in Lynchburg, Bedford, Amherst, Campbell, Appomattox, Roanoke, Salem, Danville, Martinsville and the surrounding counties. See our residential installations and upgrades.