Panels & wiring
Fuse box replacement
Fuse box replacement swaps an old screw-in or cartridge fuse panel for a modern circuit breaker panel, usually with a service upgrade at the same time. It needs a permit, a utility disconnect and an inspection.
- Call now to check electrician availability in your area
- Licensed, independent electricians
- 47 states + DC
About fuse box replacement
Fuse boxes were standard in homes built before about the 1960s. A fuse that blows has to be replaced, and the most common hazard is a homeowner installing a larger fuse than the wire is rated for, which lets the wiring overheat instead of protecting it.
Many insurers ask whether a home still has fuses, and some will not write a policy until the panel is replaced. Because fuse boxes usually come with a 30 to 60 amp service, the replacement is often combined with a service upgrade so the home can support modern appliances.
- Fuse Box Replacement at a glance
- Panels & wiring
- Who does the work
- An independent licensed electrician
- Urgent calls
- Usually scheduled
- Typical first step
- Assess the service
Signs you need this
- Fuses that blow when the microwave or a space heater runs
- Fuses larger than the circuit wiring (for example a 30 amp fuse on a lighting circuit)
- An insurer asking about or refusing a fuse panel
- Planning central air, an EV charger or a kitchen remodel
- Pennies, foil or other makeshift fixes behind fuses
What the electrician does
- 1
Assess the service
The electrician checks the service size, meter base and grounding, and whether the wiring behind the fuses is in good condition.
- 2
Permit and utility disconnect
A permit is pulled and the utility schedules the power shutoff.
- 3
Install the breaker panel
Circuits are moved to correctly sized breakers, with AFCI and GFCI protection where code requires it.
- 4
Inspection and reconnect
The inspector approves the work and the utility restores power.
What affects the cost
Electricians set their own prices. These are the factors that move a quote up or down, so you can compare like for like.
- Whether the service size also increases
- Meter base and service entrance replacement
- Number of circuits to move
- Grounding and bonding corrections
- Old wiring found behind the fuse box
- Permit and utility fees
What you can do safely, and when to stop
Safe to do
- ✓ Keep spare fuses of the correct size only
- ✓ Note which fuse controls which rooms
Stop and call
- ✕ Never install a larger fuse to stop it blowing
- ✕ Never bypass a fuse with metal
Fuse Box Replacement FAQ
Are fuse boxes illegal?
No. Existing fuse panels are generally allowed to stay, but they cannot be expanded, and many insurers and buyers treat them as a reason to replace.
Is a fuse box less safe than breakers?
Fuses protect circuits well when the right size is used. The risk is that oversized fuses are easy to install, and old fuse boxes often come with small services and aging wiring.
How long does it take to replace a fuse box?
The panel swap is usually done in a day, with permits and the utility reconnect scheduled around it.
Do I need to rewire when I replace a fuse box?
Not always. The electrician checks the existing wiring; if it is in good condition it can be connected to the new breakers, but cloth or knob-and-tube wiring may need replacing.
Will replacing a fuse box lower my insurance?
It can help with insurability; some carriers require it. Ask your insurer what documentation they need, usually the permit and final inspection.
Where electricians offer this
Local guides to fuse box replacement in cities where local housing makes it a common job:
Available through our network in 47 states and DC. Metro guides:
Related services
Electrical Panel Upgrade
A panel upgrade replaces your breaker panel, and often the service entrance, so the home can safely carry more load: an EV charger, heat pump, induction range or addition.
Learn more →
Home Rewiring
Rewiring replaces old branch-circuit wiring, such as knob-and-tube, ungrounded cloth-insulated cable or 1960s–70s aluminum branch wiring, with modern grounded copper cable.
Learn more →200 Amp Service Upgrade
A 200 amp service upgrade increases the electricity your home can draw from the utility, replacing the panel and usually the meter base and service entrance cable.
Learn more →Need help with fuse box replacement?
Call now, or send a request and a licensed electrician who serves your ZIP code will contact you.