Home / Blog / 200 Amp Main Breaker Panels: What to Know Before Upgrading

200 Amp Main Breaker Panels: What to Know Before Upgrading

200 AMP Main Breaker Panels – What You Should Know Before Upgrading

Updated October 2026

Why upgrade to 200 amps?

Many older homes were built with 100 amp panels, back when houses had far fewer appliances and electronics. Today's homes ask a lot more of their electrical system, and a 200 amp panel gives you steady, reliable service with room to grow.

What does a panel replacement cost?

Every home is different. These are the main things that affect the price:

  • How much electricity your home already uses
  • The layout of your original wiring
  • The equipment needed to bring things up to code
  • Your utility service and the age of your meter base
  • How many circuits you have

Location matters most. A panel on an outside wall is usually simpler and less expensive to replace. An interior panel may need new feeders or a new main line run to it.

Where should the panel go?

Panels in closets or laundry rooms no longer meet code because of nearby flammable items. We usually move them to the outside wall right next to the old spot. That's often the most cost-effective option, and it makes future work easier.

Is an outdoor panel better?

Often, yes. It keeps any electrical fault outside the house, lets firefighters shut off service quickly, and makes it easier to add a pool or hot tub later.

When does a subpanel make sense?

We usually save subpanels for specific needs, like a pool, hot tub, workshop, or a very large home (over about 4,000 sq ft). Otherwise, one panel big enough for the whole house keeps all your shutoffs in one place.

When would you need 400 amps?

Larger homes, all-electric homes, or homes adding a pool, hot tub or several big appliances may need 300 to 400 amp service. A 200 amp panel typically holds about 40 breakers, so if you're out of space, we can add a second panel.

Do EV chargers need a bigger panel?

Often. Most homeowners choose a charger that can fill the car overnight, and that adds a big load. Many homes with 100 amp service, and some with 200 amps, need a panel upgrade to handle it safely. What it costs to install an EV charger at home.

Not sure what your home needs?

If you're in Moore, Norman, OKC or nearby, call or text us. We'll take a look at your panel and give you an honest answer, with no pressure.

Bo Johnson

Bo Johnson

Hello, I’m Bo Johnson and I founded Passion Electric in 2014. After working as a Journeymen electrician for over ten years, I decided to start my own company!

Back to the blog

Ready to get started?

Call our office or book online. Mon – Sat: 8 AM – 4 PM.