How much does it cost to replace a Zinsco panel?

The cost to replace a Zinsco panel, also known as Zinsco Sylvania or GTE Sylvania panels installed from the 1950s to 1980s and considered unsafe similar to Federal Pacific, typically ranges from 1,500 to 4,000 dollars for a standard residential replacement by a licensed electrician. For a basic 100 to 200 amp panel replacement where the electrician removes the Zinsco panel and installs a new modern panel from Square D QO or Homeline, Eaton BR or CH, or Siemens including new breakers, permits, labor, and inspection, the cost is usually 1,500 to 3,500 dollars in most areas, with higher costs in expensive markets like California or New York. If you need to upgrade from 100 amp to 200 amp service to handle modern loads like air conditioning, EV chargers, and electric appliances, the cost may be 2,500 to 5,000 dollars because it requires new service entrance cable, meter base, grounding upgrades, and utility coordination. Additional costs may include drywall repair, permits costing 100 to 300 dollars, and bringing the system up to current National Electrical Code with AFCI and GFCI protection. Zinsco panels are considered hazardous because their breakers can weld to bus bars and fail to trip, so most electricians recommend immediate replacement, and many insurance companies require it. Always get multiple quotes from licensed electricians.