Replace century-old wiring. Local electricians in Columbia with upfront pricing, same-day appointments and 24/7 emergency response.
Dab Electrical Services offers professional knob and tube wiring replacement in Columbia, CA and Tuolumne County. 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. Our Columbia electricians arrive on time, quote the price up front and complete most jobs the same day.
Our Columbia team completes knob and tube wiring replacement for single-family homes, condos, apartments, offices, restaurants and retail stores. If you are in Columbia or nearby Standard, Sonora, Douglas Flat, you are in our service area and same-day appointments are usually available.
Popular searches we serve: knob and tube wiring replacement Columbia, knob and tube removal Columbia, knob and tube electrician Columbia, old wiring replacement Columbia.
Call: (888) 592-6466
Serving: Columbia and Tuolumne County, plus Standard, Sonora, Douglas Flat
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.
★★★★★“Our office build-out had a tight deadline and they delivered. Workstation power, lighting and the server room all done ahead of schedule.”
— Nicole F., Columbia, 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., Columbia, CA
★★★★★“Doorbell kept dying so they replaced the transformer and now the video doorbell works flawlessly.”
— Patricia M., Columbia, 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.
We accept cash, checks and all major credit cards, and financing is available for larger projects.
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Upfront pricing. Same-day appointments. 24/7 emergency response.
(888) 592-6466Request Service Online