Circuit Breaker Replacement Cost

As of 2026, replacing a single standard circuit breaker usually costs $150 to $250 (Fixr), and replacing the main breaker runs $200 to $300 (Fixr). GFCI and AFCI breakers, new circuits and damaged panels cost more.

This guide covers what different breaker jobs cost, why breakers trip and wear out, when a breaker problem is really a panel problem, and what to ask an electrician. Every figure links to the page it came from, and all are national ranges.

First, is this a safety problem?

Breakers are safety devices. When one trips, it's usually doing its job. But some signs mean you should act right away.

• Sparks, smoke, flames or a burning smell at the panel, an outlet or a switch: get everyone out of the house and call 911 from outside. Don't go back in.
• A breaker that trips again right after you reset it: leave it off. Resetting it over and over can make a fault worse.
• A hot smell with no smoke: turn off that circuit's breaker, leave it off, and call an electrician.
• Water on or near the panel: stay away from it.

Never take the cover off the panel. The parts behind it stay live even with the main breaker off, and replacing a breaker is a job for an electrician. Bob Vila advises leaving breaker replacement, panel work and wiring to an experienced electrician (Bob Vila).

What does it cost to replace a circuit breaker?

Here's what the national cost guides list for common breaker jobs.

Standard breakers

• Circuit breaker replacement: $150 to $250 (Fixr).
• Replacing a circuit breaker switch: $150 to $250 (This Old House).
• Replacing a circuit breaker switch: $200 to $250 (Fixr).

The main breaker

The main breaker shuts off power to the whole house. It's bigger and more involved to replace.

• Main breaker: $200 to $300 (Fixr).
• Main breaker: $200 to $300, rising to $500 to $2,000 if parts like the bus bar are damaged (This Old House).

GFCI and AFCI breakers

These breakers do more than protect against overloads, so they cost more.

• GFCI breaker, installed: $307 to $373 per breaker as of May 2026 (Fixr).
• GFCI breaker, part only: $80 to $160 for 30- to 50-amp units (Fixr).
• AFCI breaker, part only: $50 to $100 per breaker, not including labor (Fixr).
• GFCI or AFCI devices: $130 to $300 per device (This Old House).

New circuits

If a circuit keeps tripping because it's overloaded, the fix may be a new circuit rather than a new breaker.

• Dedicated circuit breaker: $400 to $2,000 (Fixr).
• Adding new circuits: $570 to $1,000 per circuit (This Old House).

When the panel is the problem

• Replacing a circuit breaker box: $500 to $1,800 (This Old House).
• Panel upgrade: $1,500 to $4,500, with a national average of $3,000 (Fixr).

The electrical panel upgrade cost guide covers panel work in detail.

The service call

Many companies charge a service call fee to come out and find the problem. Fixr puts a typical electrician service call at $176 to $327 (Fixr). Ask whether it goes toward the repair.

How does a circuit breaker work?

A breaker watches the current on one circuit and cuts it off when it gets dangerous. This Old House explains that a breaker uses heat and magnetism (This Old House):

• A metal strip bends when too much current heats it over time, which trips the breaker on an overload.
• A magnetic coil reacts to a sudden spike in current, which trips the breaker fast on a short circuit.

When it trips, the breaker opens its contacts and stops the flow. That protects the wiring in your walls from overheating.

This Old House also describes the main types (This Old House):

• Standard breakers protect against overloads and short circuits.
• GFCI breakers protect against shock in wet areas.
• AFCI breakers detect dangerous arcing that can start fires.

Why does a breaker keep tripping?

A breaker that trips is usually reacting to something on the circuit, not failing itself. Common causes, roughly from most to least common:

• An overloaded circuit. Too many things running at once, like a space heater and a microwave on the same circuit.
• A faulty appliance that draws too much current.
• A short circuit, where wires touch that shouldn't.
• A ground fault, where current leaks to ground, often because of water.
• A worn or damaged breaker that trips for no clear reason.

This Old House lists overloads, short circuits, ground faults and faulty appliances (This Old House). Bob Vila adds that an old, damaged or poorly installed breaker may trip for no clear reason, or fail to trip when it should (Bob Vila).

That order matters for your wallet. If the problem is an overload, unplugging a heater may solve it for free. If it's a fault in the wiring, replacing the breaker won't fix anything. A pro will check why the breaker tripped before replacing it.

What signs point to a short or a ground fault?

Bob Vila lists sparks, popping sounds, discolored outlets or switches and burning smells as signs of a short circuit. It links ground faults to tripped GFCI outlets, a burning smell at an outlet and flickering lights (Bob Vila). Any burning smell or sparks means the safety steps at the top of this guide come first.

How do you know the breaker itself is bad?

Breakers can wear out, but there's no fixed lifespan. A master electrician quoted by This Old House says there is no agreed expiration date for circuit breakers (This Old House).

Signs that point to the breaker itself:

• It won't reset, or won't stay on.
• It trips with almost nothing running on the circuit.
• It feels hot or trips often.
• You hear buzzing or crackling from the panel.
• The handle feels spongy when you switch it.
• You see scorch marks on the panel door or around the breaker.

This Old House lists scorch marks, a spongy feel, buzzing or crackling and failure to reset (This Old House). Bob Vila adds a breaker that gets hot and trips often (Bob Vila). You can notice these from outside the panel. Don't remove the cover to look.

When does a breaker job become a panel job?

Sometimes the breaker is just the part you can see. The panel may need attention when:

• The bus bar is damaged. This is the metal strip the breakers attach to. This Old House says damage there can push costs up sharply (This Old House).
• Several breakers trip at random or lights flicker across the house.
• The panel is an outdated type. This Old House lists Federal Pacific Electric and Zinsco among outdated panels (This Old House).
• There's no room for new breakers and you need more circuits.
• You still have fuses. This Old House lists an outdated fuse box as a sign you may need an upgrade (This Old House).

Fixr lists frequent tripping and having to unplug appliances to run others among the signs you may need a panel upgrade (Fixr).

Do you need a permit to replace a breaker?

It depends on where you live. Some areas treat a like-for-like breaker swap as a repair that doesn't need a permit. Others require a permit for almost any work on electrical equipment. Larger jobs, like adding circuits or changing the panel, almost always need one.

Fixr's 2026 code article puts typical permit and inspection fees at $25 to $90 (Fixr). This Old House says permits range from $75 for simple work to $900 for major rewiring on older homes (This Old House). The electrician usually knows the local rules and pulls the permit. Ask whether one is needed and whether it's in the price.

What if you have fuses instead of breakers?

Many older homes still have a fuse box. Fuses do the same job as breakers, but each one works only once. This Old House explains that a fuse has to be replaced after it blows, and lists an outdated fuse box as a sign you may need an upgrade (This Old House).

If fuses blow often, that's the same warning as a breaker that trips often. NFPA lists frequent blown fuses among the reasons to call a qualified electrician (NFPA). Never replace a fuse with a larger one to stop it blowing. The fuse size is there to protect the wire.

Fixr says replacing a fuse box with a circuit breaker panel typically costs $1,500 to $4,500 (Fixr). A master electrician quoted by This Old House calls screw-in fuses a red flag that needs to be replaced and budgeted for (This Old House).

What can you safely do yourself?

You shouldn't replace a breaker yourself, but you can help narrow down the problem.

1. Unplug or switch off the things on that circuit.
2. Reset the breaker once. Push the handle fully to off, then back to on.
3. Turn things back on one at a time. If the breaker trips when one appliance starts, that appliance or the load on the circuit may be the cause.
4. If it trips right away with nothing on, leave it off and call an electrician.
5. Write down what happened: which breaker, what was running, and how often.

NFPA advises calling a qualified electrician for frequent problems with tripping breakers or blowing fuses (NFPA). If you're not sure what's going on, you can check my electrical to see likely causes and typical costs first.

What happens when an electrician replaces a breaker?

Knowing the steps helps you understand the quote and the time involved.

1. Finding the cause. The electrician asks what happened and checks the circuit, the outlets on it and what was plugged in. This is where most of the diagnostic time goes.
2. Checking the panel. They look for heat, scorch marks, loose connections and damage to the bus bar.
3. Shutting off power. Some or all of the house will be without power for part of the visit.
4. Swapping the breaker. The new breaker has to match the panel and the circuit it protects.
5. Testing. The electrician turns the circuit back on and checks that it holds under normal use.

If the electrician finds something bigger, like a damaged bus bar or a wiring fault, they should stop and explain the options and prices before going further. Ask for that in advance.

What changes the price?

• The type of breaker. GFCI and AFCI breakers cost more than standard ones.
• The circuit it serves. Breakers for 240-volt appliances like dryers and ranges are a different type from those for everyday outlets.
• Your panel's brand and age. Breakers have to match the panel, so ask whether replacements are still made for yours.
• What the electrician finds. A loose connection, a damaged bus bar or a wiring fault adds work.
• Code requirements. Replacing equipment can mean bringing that part up to current local rules, such as adding GFCI or AFCI protection. Fixr notes this depends on what your area has adopted (Fixr).
• Timing. Emergency, night and weekend calls usually cost more.
• Where you live. Labor rates and permit rules vary by region.

Repair or replace?

For a single bad breaker in a panel that's otherwise in good shape, replacing the breaker is the usual fix. It's a quick job for an electrician.

Look at bigger options when:

• Breakers trip under normal use because the home needs more circuits.
• Several breakers show signs of wear or heat.
• The panel is damaged, corroded or an outdated type.
• You're adding big loads, like a heat pump, an EV charger or an electric range.

In those cases, a new circuit, a subpanel or a panel upgrade may cost more now but solve the problem for good. Ask the electrician to explain each option and its price.

What questions should you ask for a fair quote?

• What do you think is causing the breaker to trip, and how did you confirm it?
• Is the breaker the problem, or the circuit or appliance?
• Is the new breaker the same type and size as the old one, and is it the right match for this panel and wire?
• Does this circuit need GFCI or AFCI protection under local code?
• Is there any sign of damage to the panel or bus bar?
• Is there a service call fee, and does it go toward the repair?
• Does this job need a permit where I live?
• Can I get the price in writing, and is the work guaranteed?

The bottom line

Replacing a single breaker is usually a modest job in the low hundreds of dollars. The cost climbs for GFCI and AFCI breakers, new circuits, or damage inside the panel. Most tripping isn't caused by a bad breaker at all, so a good electrician finds the cause first.

Handle burning smells and sparks as an emergency, don't keep resetting a breaker that trips right away, and get the price in writing. For more on outlet problems that trip breakers, see the outlet and GFCI repair cost guide, and for everyday rates, how much an electrician costs.