01
How Much Does Knob and Tube Wiring Replacement Cost?
ceramic knobscloth-insulated wireper-circuit pricing
Knob and tube wiring replacement cost in Lawton typically runs between $3,500 and $8,000 for a complete house, with most 1,200–1,800 sq ft homes landing in the $4,000–$6,500 range.
Per-circuit pricing generally falls between $100 and $200 per circuit for straightforward runs, but that number climbs when an electrician has to work around ceramic knobs nailed into floor joists or trace cloth-insulated wire through finished walls. Homes with accessible attics and unfinished basements sit at the lower end of the knob and tube replacement cost range, while two-story houses with plaster walls can approach the top. Always request an on-site quote — attic access alone can shift labor costs by several hundred dollars.
02
What Is Knob and Tube Wiring Replacement, Exactly?
knob and tube systemceramic tubes
Knob and tube wiring replacement means removing the original two-wire system — ceramic knobs, ceramic tubes, and all associated cloth-insulated wire — and running modern plastic-sheathed cable with a ground conductor in its place.
The knob and tube system was standard in American homes from roughly the 1880s through the 1940s. Ceramic tubes protect wire as it passes through drilled framing members, while ceramic knobs suspend it in open air along joists. Replacing it involves identifying every active circuit, pulling permits with the City of Lawton, opening walls or ceilings where needed, running new cable, updating the panel connections, and scheduling a city inspection. It is a full rewiring project, not a repair.
03
Updating vs. Fully Changing Your Knob and Tube Wiring
insurance requirementpartial upgrade
Updating knob and tube wiring in select rooms is sometimes viable — an electrician can upgrade knob and tube wiring in a kitchen or bathroom without touching the rest of the house.
That partial upgrade makes sense when only one or two circuits are overloaded or failing and your insurer hasn't issued a blanket insurance requirement for full removal. Changing knob and tube wiring throughout the entire house is the more common and durable solution, particularly when the cloth insulation has gone brittle, the system lacks grounding, or your policy is at risk. Partial work saves money upfront but often needs to be completed within a year or two anyway, so many Lawton homeowners choose full replacement from the start to avoid paying for two mobilizations.
04
Signs Your Attic Still Has Knob and Tube Wiring
ceramic insulatorsattic wiringfuse box
The clearest sign is ceramic insulators — small white or porcelain knobs nailed to joists — visible when you poke your head into the attic.
Attic wiring that runs as two separate strands rather than a bundled cable is almost certainly knob and tube. You might also notice older cloth-wrapped conductors along rafters or through drilled holes fitted with ceramic sleeves. Inside the living space, a fuse box instead of a modern breaker panel is a strong indicator, since most homes that still use fuses were wired before the 1950s transition to modern standards. Flickering lights, two-prong outlets throughout the house, and no grounded circuits are additional clues worth reporting when you call us.
05
Will My Homeowners Insurance Require This Replacement?
insurance inspectionOklahoma home insurers
Most Oklahoma home insurers will require full removal before issuing or renewing a policy on a home with active knob and tube wiring.
The issue is insurance underwriting — underwriters classify the system as a fire hazard because its cloth insulation degrades over decades and the wiring was never designed for modern electrical loads. An insurance inspection that uncovers live knob and tube circuits typically triggers a 30 to 60 day deadline to complete replacement or face cancellation. Some carriers in the Lawton market won't write a new policy at all until a licensed electrician documents that the old system has been fully removed and replaced. If you're buying a home in the 73501, 73505, or 73507 ZIP codes, confirm the wiring status before closing.