Federal Pacific & Zinsco panel replacement in Chattanooga
Two panel brands common in Chattanooga homes built from the 1950s through the 1980s have a long record of breakers that may not trip when they should. Here's what that means for your home, your insurance, and your budget.
Why these panels get flagged
Breakers that may not trip
Federal Pacific Stab-Lok breakers have been widely reported to fail to trip under overload or short circuit - the one job a breaker has.
Loose bus connections
Zinsco and Sylvania-Zinsco panels are known for breakers that loosen or melt onto the aluminum bus bar, causing heat, arcing, and breakers that can't be removed.
Insurance trouble
Many insurers refuse to write new policies, add a surcharge, or non-renew homes with FPE or Zinsco panels. Home inspectors routinely flag them during a sale.
Typical Chattanooga replacement: about $1,500 to $3,500
Contractor estimates commonly fall in this range, but only a licensed contractor can assess and quote your project.
- Panel size (100A vs 200A) and number of circuits
- Whether the meter base or service entrance also needs work
- Moving the panel or bringing old wiring up to current code
- Permit, inspection, and EPB disconnect/reconnect coordination
- Adding capacity now for an EV charger saves a second job later
How to spot one
- Read the label inside the panel door: "Federal Pacific Electric," "FPE," "Stab-Lok," "Zinsco," or "Sylvania-Zinsco."
- FPE Stab-Lok breakers often have red-tipped handles.
- Zinsco breakers are thin and come in several colors - blue, red, green, tan.
- Don't remove the cover. Only look at what's visible with the door open.
Do I have a bad panel?
Use this general-information tool to compare visible signs. It is not an assessment or inspection; add a photo if you want to share it with a matched contractor.
4. Add a photo (optional)
This checker is a quick self-screen based on your answers. It is not an inspection and does not replace an on-site evaluation by a qualified electrician.
Ready to get matched?
Share your project details and we'll connect you with a participating licensed local electrical contractor who can assess the work and provide a quote.