Knob & Tube Rewiring

Knob-and-tube wiring was installed between the 1880s and the 1940s — the first generation of home electrification. The system lacks proper grounding, and its insulation is brittle and prone to cracking and breaking down, which causes hazards and electrical issues. We recommend replacing it.

Yes. For most homes that still have it, that is 120-plus years of use. The insulation becomes brittle and breaks down, causing electrical fires and hazardous conditions in your home. Multiphase Electric has 20-plus years in the remodeling industry and hundreds of homes improved. We can replace your old wiring in under a week in most cases, depending on the size of your house.

Many insurers are reluctant to insure a home with active knob-and-tube, and some policies require replacement or decommissioning before coverage can be issued or renewed. Homeowner's insurance typically does not pay for the work as preventive maintenance, but we provide the permit and inspection documentation you need to submit once it is done.

Yes, and most of our customers do. We work room by room, keep the house powered outside the circuits we are on that day, patch the access holes, and clean up the work area before we leave.

Some access holes are unavoidable — the old wire has to come out and the new wire has to get in. We keep them small, put them in closets, along baseboards, and other low-visibility spots wherever the framing allows, and we patch them when we are done.

Yes. We do partial rewires all the time, usually where a remodel or an insurance requirement drives it, and we can decommission the circuits we are not replacing. What we will not do is replace only the visible run of a circuit and leave the rest of that old wire energized behind the plaster.

Yes. We do electrical safety evaluations for buyers and can tell you what a full or partial rewire would involve while you still have room to negotiate. Bring us the inspection report if you already have one.