Whole-House Rewiring · Cupertino, California

Whole-House Rewiring in Cupertino, 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 Cupertino Homes

Whole-house rewiring is less common in Cupertino than in the older parts of the Peninsula, but when it comes up here it is almost always tied to one of two things: an aging ranch home or a Rancho Rinconada Eichler with aluminum branch wiring. The 1960s and 70s single-family homes that make up most of Monta Vista, Garden Gate, and Seven Springs are newer than the knob-and-tube era, so they rarely need a full copper rewire. What they do hide is the wiring of their decade, including aluminum branch circuits, ungrounded two-prong outlets, and decades of additions spliced in by previous owners. The Eichlers in Rancho Rinconada are the bigger rewiring conversation, because aluminum branch wiring shows up regularly in those homes and the post-and-beam construction with no attic makes the work demanding to do right. Before we ever talk about a full rewire, we look hard at whether you actually need one. Aluminum problems can often be handled with proper COPALUM or AlumiConn connections at the terminations rather than tearing out every run, and a few ungrounded circuits can be addressed without rewiring the whole house. Fox Electric scopes Cupertino rewires honestly, fishes wire to keep drywall damage to a minimum, and leaves you with insurance-ready documentation when a full rewire really is the right answer.

Permits & utility in Cupertino

Electrical service for Cupertino 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 Cupertino rewire runs through the City of Cupertino Building Division for the permit and inspection, with PG&E coordinated only if the service or panel is replaced as part of the job. The local quirk is aluminum branch wiring, common in Rancho Rinconada Eichlers and some 1970s ranch homes, which often does not need a full rewire at all. Eichler construction makes the work harder, with no attic and a radiant slab leaving exterior walls and the slab edge as the only practical paths. We fish wire to spare the post-and-beam ceilings and minimize patching.

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 Cupertino

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 Cupertino

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

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 — Cupertino200A Upgrade

A Cupertino 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 Cupertino Chooses Fox Electric

Local to Cupertino

Based in San Carlos — 18 min away. We know Cupertino 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 Cupertino 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 Cupertino homeowners when something can't wait.

Questions

Whole-House Rewiring in Cupertino — FAQ

My Cupertino ranch home has aluminum wiring. Do I need a whole-house rewire?

Usually not. Aluminum branch wiring from the 1970s is a real fire concern, but it is most often fixed with approved connections like COPALUM or AlumiConn at the outlets, switches, and panel rather than ripping out every run. We assess your specific home and tell you honestly whether terminations solve it or whether a fuller rewire is genuinely warranted. We will not sell you a rewire you do not need.

Can a Rancho Rinconada Eichler be rewired without wrecking the ceilings?

Largely, yes, but it takes the right approach. Eichlers have no attic and a radiant heated slab, so we cannot fish through the ceiling and cannot trench the slab casually. We run new circuits along exterior walls and the slab edge and plan access points carefully to keep the post-and-beam look intact. It is slower than a standard rewire, which is why it needs an electrician who has done it before.

Do most Cupertino homes have knob-and-tube wiring?

No. Cupertino's housing is mostly 1960s and 70s, well past the knob-and-tube era, so you are far more likely to find aluminum branch wiring or ungrounded circuits than knob-and-tube. That changes the conversation. The fix is often targeted rather than a gut rewire, and we scope it to what your home actually has.

Will my insurer want documentation after a Cupertino rewire?

Often, yes. Insurers frequently ask for proof that aluminum or other older wiring has been corrected, especially in homes from this era. When we complete a rewire or a connection upgrade through the City of Cupertino, we provide the permit closeout and documentation of the work so you can hand it straight to your insurer.

Can you rewire while we keep living in the house?

In most Cupertino homes, yes. We stage the work room by room, fish wire to keep drywall damage and patching to a minimum, and keep essential circuits live as we go. Eichlers take a bit more planning because of the slab and ceiling constraints, but we still aim to keep you in the home rather than moving you out.