Replace century-old wiring. Local electricians in Redwood City with upfront pricing, same-day appointments and 24/7 emergency response.
Knob and tube wiring has no ground, brittle insulation and cannot be buried in insulation. We replace it with modern grounded wiring and help you satisfy insurance requirements. For knob and tube wiring replacement in Redwood City, CA, call Dab Electrical Services. Our local electricians know Redwood City and San Mateo County and deliver clean, code-compliant work backed by a workmanship warranty.
Why choose Dab Electrical Services for knob and tube wiring replacement in Redwood City? Because we show up when we say we will, explain every option in plain English and never pad the invoice. Our electricians in Redwood City carry the parts for most jobs on the truck so your knob and tube wiring replacement is finished in one visit.
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Call: (888) 592-6466
Serving: Redwood City and San Mateo County, plus Atherton, Menlo Park, San Carlos
Availability: 24/7 emergency · Same-day appointments
Call NowTell us what is going on. For emergencies we dispatch immediately; for projects we schedule a convenient arrival window.
Your electrician inspects the issue, explains the options and gives you a firm price before any work starts.
We complete the job to code, test everything, clean up and walk you through what was done.
Your work is backed by our workmanship warranty, and we are one call away if you ever need us again.
★★★★★“Quick, professional ceiling fan installs in three bedrooms where there were no fixtures before. Switches work perfectly.”
— Robert H., Redwood City, CA
★★★★★“Outdoor landscape lighting and a couple of switched outlets for holiday lights. The yard looks beautiful at night.”
— Hannah V., Redwood City, CA
★★★★★“Replaced the knob and tube in our 1920s house so we could finally get insurance. Minimal wall damage and they cleaned up every day.”
— Carlos M., Redwood City, CA
Existing wiring is allowed in many areas, but it cannot be extended and insurers often refuse to cover it.
No. Covering knob and tube with insulation is a fire hazard and a code violation.
We fish new cable through existing paths and make small, patchable openings.
Yes. For permitted work in Redwood City we pull the permit, schedule the inspection and meet the inspector.
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Upfront pricing. Same-day appointments. 24/7 emergency response.
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