Do you need an electrical panel upgrade? Signs, amps, cost and permits
Updated · KeystoneProGuide editorial team
What does a panel upgrade mean?
Two related jobs go by that name. One is replacing the panel itself, the box of breakers or fuses that the Electrical Safety Foundation calls the central distribution point for the home's circuits. The other is raising the capacity of the whole electrical service, measured in amps, which can also mean changing equipment outside the house, such as the meter box, that belongs to the homeowner. Ask any electrician who proposes an "upgrade" which of the two is meant, because the work, the permit and the price differ.
Why would a home need one?
The public sources point to four reasons.
- Old fuse panels. The foundation says panels installed before 1965 used fuses, and that early fuse panels were commonly 30 or 60 amps. It says new homes today require 100- to 200-amp panels.
- Not enough capacity for a new load. The Department of Energy says some homes have insufficient electrical capacity for a Level 2 car charger, and that a qualified electrician can tell you and add circuits to provide it. The same logic applies to other large additions.
- Overloads. The foundation says a tripped breaker is most likely too many appliances on a circuit. The National Fire Protection Association lists frequent tripping or blown fuses among the reasons to call an electrician. The foundation's own suggestion for overloaded outlets is to have additional circuits or outlets added by a qualified electrician.
- Renovation. The foundation says many older homes may not have a system adequate for current demands and that the National Electrical Code is revised every three years.
A panel upgrade is not the answer to every one of these. Ask the electrician to explain, in writing, why the existing service cannot carry what you want to add.
What does an upgrade cost?
Angi, a home-services marketplace, gives a 2026 national average of $1,600 to upgrade a panel, with most homeowners paying $1,200 to $2,000. Its figures by capacity, for panel and installation together:
| Amperage | Angi's range, panel plus installation |
|---|---|
| 100 amps | $800 to $1,500 |
| 150 amps | $1,300 to $1,600 |
| 200 amps | $1,300 to $2,000 |
| 300 amps | $1,800 to $3,500 |
| 400 amps | $2,000 to $4,000 |
The same page lists related items: $400 to $1,750 for a subpanel, $200 to $800 for a meter box, and $50 to $300 for the panel permit. It also says an indoor panel that needs walls opened costs more because of the extra work and drywall repair. All of these are national figures.
Who is involved besides the electrician?
The utility and the code office, on any job that touches the service.
PECO's equipment responsibility page draws the line: PECO owns the service wire coming from its system and the meter, while the customer owns the attachment point, the weather head and drip loop, the riser or conduit and the meter box. A service upgrade can involve both sides of that line, so ask who will arrange the utility's part. Philadelphia's permit page notes that a separate PECO service and meter application may be required.
On permits, Pennsylvania's code regulation requires one before an electrical system is installed, altered or replaced, and exempts utility-owned metering and distribution equipment. In Philadelphia, a service conductor installation with a connected load of 200 amps or less can go through as an EZ permit without plans. In Lower Merion, check that the license held by the electrician in charge covers new service: the township's limited special license does not.
What does a new panel have to include?
That depends on the code edition your municipality enforces, which no page read for this guide states. The foundation's account of the 2020 National Electrical Code says new and replaced service equipment must be protected by a listed Type 1 or Type 2 surge protective device, and that outdoor emergency disconnects are required for new construction and for homes having their service replaced. It also says arc-fault protection has been required on almost every circuit in new work since the 2008 code. Ask your electrician which edition applies and what it will add to the job and the price.
Can you check your panel yourself?
Only from the outside, by looking at the panel door and whether it holds breakers or fuses. The Consumer Product Safety Commission advises consumers not to open the inside of the panelboard or breaker compartment, because it can expose live wires and pose an electrocution hazard.
What should you ask before agreeing to an upgrade?
- What capacity does the house have now, and what do you calculate it needs?
- Is this a panel replacement, a service upgrade, or both?
- Does the price include the meter box, the outside service equipment, any wall repair and the permit?
- Who arranges the utility's part, and how long will the power be off?
- Which code edition applies, and what does it add?
- Would a new circuit or a subpanel solve the problem instead?
What the job looks like from permit to final inspection is in what to expect on the day, the general price ranges are in the cost guide, and the symptoms that point to an overloaded system are in the warning signs guide. Electricians are listed on the electricians directory page.
Sources
- Understanding Your Home Electrical System, Electrical Safety Foundation International (ESFI)
- Home Safety Devices - Renovate Your Home to Code, Electrical Safety Foundation International (ESFI)
- Home Electrical Fires, Electrical Safety Foundation International (ESFI)
- How Much Does It Cost to Upgrade an Electrical Panel? [2026 Data], Angi
- Charging Electric Vehicles at Home, U.S. Department of Energy, Alternative Fuels Data Center
- Equipment Responsibility, PECO
- Get an Electrical Permit, City of Philadelphia
- 34 Pa. Code § 403.62. Permit requirements and exemptions., Commonwealth of Pennsylvania (Pennsylvania Code)
- Chapter 72: Electrical Standards, Township of Lower Merion (eCode360)
- May Is National Electrical Safety Month: Good News for Homeowners - Aluminum Wiring Fix Still Available, U.S. Consumer Product Safety Commission
- Electrical Home Fire Safety, National Fire Protection Association (NFPA)
- Surge Protective Devices, Electrical Safety Foundation International (ESFI)