

You likely need a 200-amp panel upgrade if you have a 100-amp (or smaller) service, a full panel with no room for new circuits, frequent breaker trips, or plans for big new loads like an EV charger, hot tub, or home addition. A licensed electrician confirms it with a load calculation.
Modern homes demand more power than ever. If your electrical service can't keep up, a 200-amp upgrade adds capacity and safety. Here's how to know if you're due for one.
The reliable way to know is a load calculation — adding up your home's total electrical demand and comparing it to your service size. This prevents both an unsafe, overloaded panel and paying for capacity you don't need.
| Work | Typical Range |
|---|---|
| Upgrade to a 200-amp panel | $1,300 – $4,000 |
| Upgrade to 400-amp (large homes) | $3,000 – $12,000 |
Typical U.S. estimates; cost varies by home, region, and whether the service line or meter also needs work. Your electrician provides a firm quote.
For most homeowners, yes — a 200-amp upgrade improves safety, supports modern appliances and EVs, prevents nuisance trips, and can add value at resale. It's foundational: many other upgrades depend on having the capacity first.
The Neighborhood Electrician connects you with a licensed electrician who can run a load calculation and quote your upgrade.
Check the main breaker at the top of your panel — the number on it (100, 150, 200) is your service size. If you can't tell, an electrician can confirm it quickly.
Most take a day, usually with a temporary utility disconnect. Your electrician coordinates timing and any inspection required.
Not directly — it adds capacity and safety, not efficiency. But it enables efficient modern equipment and prevents the damage and hazards of an overloaded system.
Connecting U.S. homeowners with licensed, insured, and vetted electricians since 2015 — from emergency repairs to panel upgrades.