Old panels and your insurance — what carriers actually require.
California insurance carriers have tightened their position on old electrical panels. Here's which panel types they refuse to renew, what the inspection process looks like, and what replacement costs for insurance-renewal purposes.
By Steven Lockhart · Reviewed by Alex Towery, C-10 #989290
Updated 2026-06-16
Most major California homeowners carriers — State Farm, Allstate, USAA, Travelers, Liberty Mutual, AAA — now require replacement of Federal Pacific Stab-Lok, Zinsco/Sylvania, and active knob-and-tube wiring before policy renewal. Pre-1990 fuse boxes are often flagged. Replacement for insurance renewal typically runs $4,800-$8,500 for a standard 200A panel upgrade in Marin.
01Which panel types carriers reject.
The 'do not insure' list has consolidated around specific equipment with documented failure history.
Federal Pacific Stab-Lok
FPE Stab-Lok breakers have documented failure-to-trip rates substantially above industry norm — CPSC investigations and multiple field studies have shown the trip mechanism can fail to open during overcurrent. Universal carrier rejection.
Zinsco / Sylvania
Zinsco panels (later sold under the Sylvania name) have documented failures in the bus connection between breakers and the panel bar. Failure mode is heating at the connection point that can lead to arc faults and fires. Universal carrier rejection.
Pre-1990 fuse boxes
Some carriers reject any fuse-based system (vs circuit breakers) due to incompatibility with modern AFCI/GFCI requirements. Not universal — some carriers accept fuse panels if otherwise sound — but increasingly common as a renewal requirement.
Active knob-and-tube wiring
Separate from panel itself, K&T wiring is now non-insurable by most carriers. Even with a modern panel, active K&T circuits trigger the same renewal issue.
02How carriers find out about your panel.
Carriers learn about panel type through several channels. The most common is the 4-point inspection — many policies (especially for properties over 25-30 years old) now require an inspection at renewal that documents the electrical panel, roof condition, plumbing, and HVAC. The inspection report identifies panel manufacturer and type, and the carrier's underwriting system flags FPE, Zinsco, or other rejected types.
The other common path is after-claim investigation. If you file any claim involving electrical, fire, or water damage, the carrier's adjuster will document panel type during their inspection. A previously-unnoticed FPE or Zinsco panel often surfaces during these inspections and triggers non-renewal at the next cycle even if the claim itself is paid.
03What the non-renewal process looks like.
04Cost and timing for insurance-driven replacement.
Replacement for insurance purposes is the same scope as any panel upgrade: remove old panel, install modern 200A panel with current breaker types, coordinate PG&E meter pull and reconnect, pull permit, pass inspection. Typical Marin residential 200A panel upgrade runs $4,800-$8,500 all-in. Insurance doesn't change the structure of the work; it just changes the urgency.
From signing a quote to closed permit, realistic timeline is 2-5 weeks: 1-2 weeks for permit and PG&E coordination, 1 day on-site for the replacement work, 1-2 weeks for inspector scheduling and permit closure. Insurance renewal documentation (permit closure + invoice) can be submitted as soon as inspection passes — most carriers will accept the closed permit notice without waiting for the formal final paperwork.
Common questions.
My carrier says I have to replace my Federal Pacific panel — is that actually required?
Required by your carrier, yes. The carrier is exercising their right not to renew the policy unless the panel is replaced. NEC and California Building Code don't independently require replacement of an existing FPE panel if it's still functional — but if your carrier won't renew without replacement, and finding another carrier with the same panel is difficult, replacement is the practical answer.
How much will the replacement cost for insurance purposes?
Same as any panel upgrade — $4,800-$8,500 for typical Marin residential 200A panel replacement including PG&E coordination, permit, install, and inspection. The insurance context doesn't change the work scope. Service-side upgrades (going from 100A to 200A) add $1,800-$3,200. Total project cost rarely exceeds $11,000 for residential scope.
Will my premium go down after replacement?
Sometimes a modest reduction, sometimes nothing. Carrier pricing models vary. The primary benefit isn't premium reduction — it's policy continuity (you stay insured) and access to better carriers in the future. Some carriers refuse new policies on homes that have had previous non-renewal events, so getting back to a clean record matters.
What if I can't afford the replacement in the renewal window?
Several options worth exploring: financing through the electrical contractor, home equity line of credit for the replacement, requesting an extension from the carrier, or finding an alternative carrier that accepts the panel type. The cleanest answer is usually completing the replacement in window; financing helps spread the cost.
Do I need to replace knob-and-tube wiring too for insurance?
If you have active K&T circuits, almost certainly yes. Most carriers treat K&T separately from panel type but require its removal at the same renewal trigger. A panel replacement alone doesn't satisfy a K&T issue. The cost-effective approach is combining both: panel upgrade plus K&T removal in a single project.
What documentation does the carrier want?
Standard requirements: closed permit from the AHJ (showing inspection passed), invoice from the licensed electrical contractor (showing license number, scope of work, and date), and sometimes photos of the new panel installed. We provide all of these as part of project closeout. Some carriers also accept a letter from the electrician confirming the panel meets current code.
How do you handle pricing — flat fee or hourly?
Both, depending on scope. Routine service calls and predictable scope (panel replacement, EV charger install, transfer switch install, fixture replacement) are flat-fee quoted up front. Diagnostic visits and emergency scope are hourly because we don't know what we'll find. Either way, you get a written quote before work starts on anything significant, and we don't proceed beyond the quote without your sign-off.
How quickly can you schedule?
Depends on scope and season. Emergency dispatch: same-day across Marin County (1-3 hours business hours, 1-4 hours after-hours). Same-day standard service: 3-6 hours from call when capacity allows; otherwise next business day. Scheduled service work: 1-3 weeks typical. Larger projects requiring permits and PG&E coordination: 4-12 weeks depending on scope. We're upfront about timeline at the quote stage.
What warranty do you offer on work?
Our standard residential warranty: 2 years on labor, manufacturer warranty on parts (varies by product — typically 1-10 years). Major installs (panels, generators, EV chargers) often have longer manufacturer warranties (5-10 years). If there's an issue with our work in the warranty period, we come back and fix it at no cost. We also stand behind work past warranty — repeat customers and referrals matter more than a transactional fix.
Are you licensed and insured?
Yes. California State License Board C-10 Electrical Contractor #989290, in good standing. Carry general liability insurance and workers' compensation insurance as required by California law. Bondable on projects requiring it. Happy to provide proof of insurance to clients or property managers on request. License lookup: cslb.ca.gov.
Talk to a licensed electrician in Marin.
Family-run, C-10 #989290, 20+ years in the trade. Honest scoping, fair pricing, work that lasts.