Four panel brands show up on nearly every insurer's watch list: Federal Pacific, Zinsco, Challenger, and Pushmatic. We find all four in Sacramento-area homes every week, mostly in houses built between the 1950s and the early 1990s. A fifth brand, General Electric, gets lumped in with them online because the GE name is being retired. It doesn't belong on that list, and we'll explain why.
If you only read one thing: open your panel door, read the label, and compare it with the four below. If it's one of them, the fix is a panel replacement, not new breakers. If it says GE, you probably don't need to do anything.
How to tell what panel you have
The manufacturer's name is on a label inside the panel door or printed on the breakers themselves. You don't need to remove the cover. If the label is worn off, the breakers give it away, and the sections below describe what each brand's breakers look like. Not sure? Take a photo of the open door with the breakers visible and send it to us. We'll tell you what you have at no charge.
Federal Pacific Electric (Stab-Lok)
Years: 1950s through the 1980s, so it turns up in Carmichael, Fair Oaks, Citrus Heights, the Pocket, and the older parts of Rancho Cordova.
How to spot it: "Federal Pacific" or "FPE" on the label, and Stab-Lok breakers with red or orange tips on the handles.
What goes wrong: the breakers don't trip when they should. Independent testing of Stab-Lok breakers found a large share failing to clear an overload, in some test runs more than half. A breaker that won't trip turns a wiring fault into a fire instead of a nuisance. The breaker-to-bus connection also loosens over time, which adds heat at the panel.
Insurance: most carriers list FPE Stab-Lok as ineligible. A home inspector who finds one will put it in the report, and your agent will ask for a replacement before writing or renewing the policy.
What we do: replace the panel. Replacement Stab-Lok breakers are still sold, but they're reproductions of the same design in the same bus, so swapping breakers fixes nothing.
Zinsco (also sold as GTE-Sylvania)
Years: 1960s and 70s. Same neighborhoods as Federal Pacific, plus a lot of the tract homes in Citrus Heights and Carmichael.
How to spot it: "Zinsco" or "Sylvania" on the label, and breaker handles in colors (blue, red, green, black) on a thin aluminum bus bar.
What goes wrong: the breakers weld themselves to the bus. Once that happens the breaker can read "off" while the circuit stays live, and the arcing between breaker and bus eats the bus bar. We've opened Zinsco panels where the damage was obvious from across the garage.
Insurance: treated the same as Federal Pacific. Carriers that run a four-point inspection will flag it on sight.
What we do: replace the panel. There's no safe repair for a damaged aluminum bus.
Challenger
Years: 1980s and early 90s, which puts it in Antelope, the newer side of Rancho Cordova, Elk Grove's first subdivisions, and Natomas.
How to spot it: "Challenger" on the label. The breakers look ordinary, which is why these panels get missed.
What goes wrong: the breakers overheat at the point where they clip onto the bus bar. Heat means expansion and contraction, which loosens the connection, which means more heat, until the breaker and the bus discolor and melt. A 1988 recall covered 15 and 20 amp Challenger breakers made that spring, and the broader overheating problem affects panels well outside the recall window.
Insurance: this is the newest name on the list, and more carriers add it every year. Some already refuse to write a policy on a home with one.
What we do: replace the panel. If the bus shows discoloration, sooner rather than later.
Pushmatic (Bulldog)
Years: 1950s through the 70s.
How to spot it: instead of breaker handles that flip, you push a button. Many Pushmatic panels have no main breaker at all, so there's no single switch to kill the house.
What goes wrong: the push-button mechanism uses an internal grease that stiffens with age, so the buttons jam and the breaker won't reset or won't trip. The little flag that shows on or off can stick, so a circuit reads off while it's live. The company has been out of business for decades, and replacement breakers are either unavailable or counterfeit. We've seen homeowners force the wrong breaker into a Pushmatic bus, which is one of the worst things you can do to a panel.
Insurance: obsolete, in most carriers' words, and replacement is usually a condition of coverage.
What we do: replace the panel and, while we're there, give the house a main breaker.
What about General Electric?
GE is a different conversation. In 2024 ABB, which bought the GE electrical business, moved every GE residential product over to its own ABB ReliaHome brand. GE-branded load centers and breakers stopped being made as of October 2024. That's where the "GE panels are discontinued" headlines come from.
Discontinued isn't dangerous. GE residential panels don't carry the design problems above, and ABB's ReliaHome breakers are UL-listed as backward compatible with the GE load centers already on the wall. If a breaker fails in your GE panel, we can replace it with a listed part today, and the inspection passes.
So a GE panel in good condition stays. The reasons to replace one are the reasons to replace any panel: it's out of capacity, it's 40 years old with worn breakers and corrosion, it's been damaged, or you're adding loads it can't carry. The logo isn't one of them. Anyone telling you a GE panel has to go because of the name is selling you a panel.
What insurers are doing in California
Insurance in California is tight right now, and carriers are using the electrical panel as one of their filters. The pattern we see from our customers:
- A new policy gets declined after the inspector photographs the panel.
- A renewal comes with a letter: replace the panel by a date or the policy lapses.
- A sale stalls when the buyer's inspection flags the panel and the buyer's insurer won't bind coverage.
In every case the answer the carrier wants is a replacement, permitted and inspected, with paperwork. We give you the permit record and a photo of the finished panel for your agent.
What a replacement involves
A main panel replacement in the Sacramento area runs $2,500 to $10,000. The low end is a straightforward swap at the same amperage, the high end is a full 200-amp service change with new riser and meter work. Almost everyone replacing one of these four panels moves to 200 amps at the same time, since the house is about to get a modern panel anyway and the extra capacity costs little on top.
The job takes a day. Your utility shuts the power off for the swap and turns it back on the same afternoon. SMUD has its own application and scheduling, Roseville Electric and PG&E have theirs, and we handle all three. The permit and the inspection are part of the written price.
Frequently Asked Questions
Can't I just replace the breakers in my Zinsco or Federal Pacific panel? No. The problem is the bus bar and the breaker design together, and replacement breakers for both brands are reproductions of the same design. A new breaker in an old Zinsco bus is a new breaker waiting to weld itself in place.
Will my insurance really drop me over a panel? It happens. More often you get a letter giving you a window to replace it. Either way the carrier wants a permitted replacement with documentation, and we provide both.
How do I know if my Sylvania panel is a Zinsco? If it's a residential panel with the colored breaker handles on an aluminum bus, treat it as a Zinsco. Sylvania sold the Zinsco design under its own name after buying the company in the 1970s.
My home inspector flagged a Challenger panel. How urgent is it? Open the door and look at the breakers where they meet the bus. Any browning, bubbling, or melted plastic means call us this week. If it looks clean, you have time to plan, but plan on replacing it. The problem gets worse with every summer the AC runs through it.
Is my GE panel discontinued? Do I have to replace it? The GE name is retired, but the panels are not recalled and the breakers are still made under the ABB ReliaHome name. Keep it unless it's out of capacity, damaged, or old enough that the breakers themselves are worn.
Not sure what you have?
Photograph the open panel door and send it to us, or book a safety inspection and we'll check the panel, the wiring type, and the grounding in one visit. If it's one of the four, you'll get a written price for the replacement on the spot. Details on the work are on our panel upgrade page.