Whole-House Rewiring · Fremont, California

Whole-House Rewiring in Fremont, CA

Replacing aluminum, knob-and-tube, or cloth-insulated wiring with modern copper and code-current GFCI/AFCI protection — often without opening every wall.

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CSLB #1145945 PG&E Handled Upfront Pricing

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Whole-House Rewiring for Fremont Homes

Rewiring work in Fremont concentrates in two places: the early-1900s cottages of Niles and the oldest of the 1950s-60s ranches scattered through Centerville, Irvington, and Glenmoor. Niles is the headline. Its charming historic homes date to the era of knob-and-tube and cloth-insulated wiring, and behind beautifully preserved facades you often find a fuse box and original branch circuits that no longer match how anyone lives today. The mid-century ranches bring a different problem: some carry early aluminum branch wiring from the 1960s, which is a known fire risk at outlets and switches. A full rewire is not always the answer, and we say so — sometimes pigtailing aluminum connections or replacing a few problem runs is the honest, cheaper fix, and we lead with that before quoting a whole-house job. When a rewire is genuinely warranted, Fox Electric replaces the old wiring with modern copper and code-current GFCI and AFCI protection, fishing wire through walls to spare your drywall and your plaster where we can. In Niles especially, that means working carefully around original architectural details rather than gutting the place. Every Fremont rewire comes with a permit, a passed inspection, and insurance-ready documentation that the old wiring is gone.

Permits & utility in Fremont

Electrical service for Fremont is provided by PG&E, and the electrical permit and inspection go through the local building department. We pull the permit and coordinate the PG&E service work as part of the job.

A Fremont rewire is permitted and inspected through the City of Fremont building department, and Niles sits within a recognized historic district where preserving original detail is part of the job, not an afterthought. The two big drivers here are knob-and-tube in early-1900s Niles cottages and 1960s aluminum branch wiring in mid-century ranches. We always weigh the cheaper targeted fix — pigtailing, partial rewiring — before recommending a full replacement, and insurers frequently want documented proof the old wiring was addressed.

Pricing depends on your home and scope — we give a free on-site estimate with a written, fixed price before any work starts. For typical Bay Area ranges, see our guide on knob-and-tube wiring replacement.

What's Included

Whole-House Rewiring in Fremont

Replacement of knob-and-tube, aluminum, or cloth-insulated wiring

Modern copper branch circuits with GFCI/AFCI protection

Fuse box or undersized panel replaced with a 200A breaker panel

Fishing wire through walls to minimize drywall damage

City permit pulled and electrical inspection closed out

Insurance-ready documentation of the completed work

How We Handle Whole-House Rewiring in Fremont

Straightforward, permitted, and clean — from your first call to final sign-off in Fremont.

Walkthrough

We assess the existing wiring, identify access points, and scope the work with a fixed-price quote.

Permit

We pull the city permit and plan the rewire to keep you in the home where possible.

Rewire

Old wiring replaced with copper, GFCI/AFCI added, panel modernized, drywall patched.

Inspection

City inspection passed and documented for your insurer and records.

Recent Project

200A Panel Upgrade — Fremont200A Upgrade

A Fremont homeowner needed more capacity for an EV charger and a future heat pump, but the home was still on its original 100A service. We ran a load calculation, pulled the city permit, coordinated the PG&E service window, and installed a 200A panel — every circuit relabeled and the directory typed, powered back up the same day.

Before: Original 100A service, no room to grow
After: 200A panel sized for EV + heat pump headroom
Coordination: PG&E disconnect/reconnect + city inspection handled
Outcome: Passed inspection, permit closed out for resale

The Fox Difference

Why Fremont Chooses Fox Electric

Local to Fremont

Based in San Carlos — 25 min away. We know Fremont homes, PG&E coordination, and the local permitting.

Licensed & Insured

CSLB #1145945 — fully licensed C-10 contractor and bonded. Every job permitted and inspected to current code.

Permits & Utility Handled

We pull the Fremont permit, coordinate PG&E service work, and close out the inspection — you schedule one day, we do the rest.

5.0★ on Google

We earn the rating on every visit, not just the first.

Upfront, Fixed Pricing

Free on-site estimate with a written fixed-price quote before any work starts. No obligation, no surprises.

Same-Day Availability

We hold same-day slots open for Fremont homeowners when something can't wait.

Questions

Whole-House Rewiring in Fremont — FAQ

Do older Niles homes really need rewiring?

Some do, some don't. Many Niles cottages from the early 1900s still have knob-and-tube or cloth wiring that is brittle and ungrounded, which is worth replacing. Others have already been partially updated. We assess what is actually in the walls before recommending a full rewire, so you are not paying to redo work someone already did.

My Fremont ranch has aluminum wiring. Do I need a full rewire?

Usually not. Aluminum branch wiring from the 1960s is a fire risk at connections, but the standard fix is pigtailing those connections with copper or replacing only the problem runs, which is far cheaper than a whole-house rewire. We recommend the targeted fix first and only suggest a full rewire when the wiring is genuinely failing throughout.

Can you rewire a historic Niles home without tearing up the walls?

In most cases, yes. We fish new copper through existing wall and ceiling cavities to minimize drywall and plaster damage, which matters especially in Niles homes with original trim and finishes. Some access points are unavoidable, but we plan the route to preserve the character of the home.

Will my insurer want proof the old wiring was replaced?

Often yes. Insurers in California frequently require documentation that knob-and-tube or aluminum wiring has been addressed before they will write or renew a policy. Every Fremont rewire we do comes with a pulled permit, a passed city inspection, and paperwork you can hand straight to your insurer.

Does a rewire in Fremont go through PG&E or the city?

Mostly the city. The rewire itself is permitted and inspected by the City of Fremont building department. If the job also replaces an old fuse box or undersized panel, PG&E coordinates the service disconnect and reconnect for that portion, which we schedule for you.