Federal Pacific panel replacement cost

Replacing a Federal Pacific panel costs $1,300 to $4,000, typically about $2,200, for a like-for-like swap at the same amperage with the utility service left as it is. The same range covers a Zinsco or Sylvania-Zinsco board, because the job is the same: the box and every breaker in it come out, and nothing in it is reused.

What moves the price is less the brand than what the electrician finds once the old panel is off the wall: circuit wires too short to reach the new breakers, a grounding system from another era, and the question of whether to stop at a replacement or turn the job into a service upgrade while the power is already off.

What it costs

The replacement figure includes the new panel, a full set of new breakers, the permit and the inspection. The upgrade figure adds the utility's side of the job, a larger service entrance and usually a new meter base. Those are two different scopes, and a quote should say clearly which one it is.

How to tell what you have

Most people learn they have one of these panels from a home inspector or an insurance questionnaire, but you can check yourself in a couple of minutes without touching anything live.

Federal Pacific Stab-Lok. Open the panel door, not the cover. The label inside the door usually reads Federal Pacific Electric or FPE, and the breakers are thin, with a red or orange stripe or tab on the handle and the word Stab-Lok printed on the label. They were sold under other names too, so the breaker style is the better clue.

Zinsco and Sylvania-Zinsco. The breakers are multicolored, often in blue, red, green and brown, and the label names Zinsco or Sylvania. They were installed mostly from the 1950s into the 1970s.

Other names that come up. Some insurers also ask about Pushmatic and certain Challenger panels. The concerns there are narrower and vary by product line, so treat a flag on one of those as a reason for an electrician to look, not as an automatic replacement.

If you cannot read the label, take a photo of the open door and the breakers and send it with the quote request. Any experienced electrician will recognize the brand from the picture.

Why inspectors and insurers flag these panels

A breaker has one job: to open the circuit when too much current flows, before the wire behind the wall gets hot. The trouble with both of these brands is that the breakers have a long and well documented record, in independent testing and in the field, of failing to do that.

With Stab-Lok the concerns are breakers that do not trip on overload or short circuit, and breakers that sit loosely on the bus bar, so the connection itself arcs and heats. With Zinsco the usual finding is a breaker that has fused to the aluminum bus behind it, so it can no longer open at all, along with scorched or corroded bus bars.

None of it is visible from the front. A breaker that has never been asked to trip looks exactly like one that works. That is why inspectors write these panels up by name rather than by condition, and why many insurers will not write a new policy, or will not renew one, until the panel is gone. Neither panel is something an electrician can repair. Replacement breakers for the old pattern are still sold, but they do nothing about the bus they plug into, and most electricians will not install them.

What the like-for-like job involves

A panel swap is a day's work for one or two electricians, with the power off for most of it.

The utility or the electrician pulls the meter, depending on local practice. The old panel is stripped: every circuit is labeled, the breakers come out, the wires are pulled back, and the enclosure is unscrewed from the wall. The new panel goes in the same opening, usually a little larger, with a new main breaker.

Then each circuit is landed on a new breaker. On a panel from the 1960s this is where the hours go. Wires that were cut to fit the old layout are often a few inches short for the new one and have to be spliced and extended in the panel or in a box beside it. Two wires under one breaker screw, common in crowded old boards, are separated onto their own breakers. Breakers are matched to each wire's gauge, which sometimes reveals a 30 amp breaker on a wire rated for 20.

Finally the grounding and bonding are brought up to what the inspector will accept, the panel is labeled circuit by circuit, and the job is inspected before the cover goes back on. Many jurisdictions now require arc-fault or combination breakers on most circuits when a panel is replaced, which is one reason the low end of the range is hard to reach.

Replacement or upgrade while it is open

Every Federal Pacific or Zinsco replacement raises the same question: since the panel is coming out anyway, should the service go to 200 amps at the same time?

Stay like-for-like when the house has 100 amps, mostly gas appliances, no plans for an EV charger, a heat pump or a hot tub, and a load calculation that shows comfortable headroom. The replacement fixes the safety problem and nothing about the house needs more.

Upgrade now when any of those plans exists, or when the service is 60 amps. The panel, the labor to land every circuit and the permit are paid for once either way, so the extra cost of the upgrade is mostly the utility work and a heavier service entrance. Doing the replacement now and the upgrade in three years pays for the panel swap twice.

Ask for both prices on one quote. An electrician who has already counted your circuits can price both scopes in the same visit, and seeing them side by side is the only fair way to decide. The electrical panel upgrade guide covers the load calculation that should sit behind any recommendation to go bigger.

If the main panel is fine for capacity but the house needs more breaker spaces, a subpanel fed from the new main is sometimes the cheaper way to get room for new circuits. It does not replace the old panel; the defective board has to come out regardless.

A worked example: a 100 amp Stab-Lok in a 1960s ranch

A 1,400 sq ft ranch house with a 100 amp Federal Pacific panel, gas heat and a gas water heater, flagged by the insurer at renewal. The electrician expects a few short circuit wires and quotes the swap and the upgrade side by side.

Like-for-like replacement at 100 amps:

• Panel replacement: $1,300 to $4,000
• Extending short circuit wires: 2 to 4 hours × $80 to $180 per hour = $160 to $720
• Total: $1,460 to $4,720

The same panel replaced with a service upgrade to 200 amps:

• Service upgrade with new panel: $1,500 to $6,000
• Extending short circuit wires: 2 to 4 hours × $80 to $180 per hour = $160 to $720
• Total: $1,660 to $6,720

At the bottom of each range, the gap between the two is small. At the top it grows, because the upgrade can pull in a new meter base and service entrance cable. For this house, with gas appliances and no new loads planned, $1,460 to $4,720 for the swap alone is the sensible quote to accept. If an EV charger is on next year's list, the $1,660 to $6,720 option is the one that avoids paying for a second panel job.

Reading a quote for this job

A complete quote for a Federal Pacific or Zinsco replacement answers these without being asked:

• Is this like-for-like at the current amperage, or a service upgrade?
• Are arc-fault and GFCI breakers included wherever the local code requires them?
• How are short circuit wires handled, and at what hourly rate?
• Is grounding and bonding correction included, or priced on discovery?
• Who pulls the permit and books the utility, and is the inspection in the price?
• Will you write a letter or invoice the insurer will accept as proof of replacement?

The last one matters more than it sounds. Insurers usually want the invoice, the permit number and sometimes a photo of the new panel. Ask for all three on completion.

If you want an independent opinion before committing, an electrical inspection from someone who is not quoting the replacement is a fair way to confirm what you have. An electrician's diagnostic visit at $100 to $250 is the quicker version, and many firms credit it if you go ahead.

Frequently asked questions

Does a Federal Pacific panel have to be replaced by law?

Usually not. It was legal when installed and most jurisdictions do not require removal on their own. The pressure comes from insurers and home inspectors, and in practice an insurer that will not cover the house is a stronger requirement than any code.

Can I sell a house with a Zinsco panel?

Yes, but it will be flagged at inspection and buyers' insurers will ask about it. Expect a credit request close to the replacement cost, or a demand that it be replaced before closing, which leaves you scheduling it on someone else's timeline.

Will my homeowners insurance pay to replace an FPE panel?

Almost never, because a known defect is a maintenance item rather than a covered loss. Some insurers give a short grace period to replace the panel after flagging it, so ask for that in writing.

Can I just replace the Stab-Lok breakers instead of the whole panel?

Not as a fix. The concerns include how the breakers seat on the bus and the bus itself, and new breakers in the old enclosure leave both in place. Most electricians will not take that job, and most insurers will not accept it.

Related guides

• Electrical panel upgrade cost — when the service itself should grow
• Electrical inspection cost — an independent look before you commit
• Aluminum wiring repair cost — the other finding these houses often carry
• Electrician cost — the hourly rate behind the extra labor line