Zinsco Panel Replacement, with Permits and Utility Handled

Zinsco and Sylvania-Zinsco panels are common in LA homes built from the 1950s to the 1970s. We replace them with modern panels, and handle the permits and utility coordination.

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How to tell

How to Spot a Zinsco Panel

Zinsco panels have a few distinctive features.

“Zinsco” or “Sylvania” on the panel or breakers
Thin, multicolored breaker handles
A home built from the 1950s to the 1970s
An inspector or insurer flagged it
Breakers that feel loose
A panel that’s warm, buzzing or discolored
Breakers that won’t reset
Signs of melting or scorching

How it works

From Zinsco Panel to New Panel

Inspect the Panel

We open the panel, check the breakers, bus and wiring, and confirm the brand and service size.

Options with Prices

A panel replacement, a full service upgrade, or both, each priced before any work starts.

Permits and Utility

We pull the permit, coordinate with your city and utility, and request the meter spot when it’s required.

Install and Inspection

We install the new panel, label every circuit, and walk you through it after the city inspection.

Why it matters

Why Zinsco Panels Are Replaced

Zinsco panels, also sold under the Sylvania name, were installed in many Southern California homes from the 1950s through the 1970s. Their breakers are known for problems where they connect to the panel’s bus bars.

Connections can overheat. Over time, the breaker connection can loosen and arc, and in some cases a breaker can fuse to the bus bar and fail to trip when it should.

Parts are hard to find. Zinsco breakers are no longer made, so repairs often use hard-to-find or secondhand parts.

Replacement is the reliable fix. We install a modern panel sized for EV chargers, heat pumps and ADUs, and handle the permit, utility coordination and inspection.