Knob and Tube Wiring Replacement in Texas
Eliminate the fire hazard of knob-and-tube wiring with professional replacement by licensed Texas electricians. TX24H pros safely remove outdated K&T wiring and install modern grounded copper circuits to bring your home up to code.
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Knob and Tube Wiring Replacement Prices in Texas
Average prices based on local market data. Actual prices may vary by city and scope.
| Service | Price Range |
|---|---|
Full K&T Replacement (Under 1,200 sq ft) Complete removal and replacement with modern copper wiring | $8,000-$13,000 |
Full K&T Replacement (1,200-1,800 sq ft) Average older home; includes panel upgrade | $10,000-$18,000 |
Full K&T Replacement (1,800-2,500 sq ft) Larger home with more circuits and wiring runs | $15,000-$25,000 |
Partial K&T Replacement (Per Circuit) Replace individual K&T circuits while leaving others | $500-$1,200 |
K&T Assessment and Report Document extent of K&T for insurance or real estate | $200-$400 |
Panel Upgrade (200 Amp, Included in Full Rewire) Typically bundled; old fuse boxes replaced with breaker panel | $1,800-$3,500 |
Frequently Asked Questions
How much does knob-and-tube replacement cost in Texas?
A full knob-and-tube replacement in Texas costs $8,000 to $25,000 depending on home size. Small homes under 1,200 square feet run $8,000 to $13,000. Average homes of 1,200 to 1,800 square feet cost $10,000 to $18,000. Larger homes reach $15,000 to $25,000. These prices include removing the old K&T wiring, installing new copper NM-B wiring, upgrading the panel to 200 amps, and all permits and inspections. Wall patching may add $1,000 to $3,000.
Why is knob-and-tube wiring dangerous?
Knob-and-tube wiring was installed from the 1880s through the 1940s and was designed for much lower electrical loads than modern homes demand. The main dangers are that it lacks a ground wire, making shock risk high; its insulation becomes brittle and cracks with age, exposing live conductors; it was not designed for modern loads and overheats when powering today's appliances; and blown-in insulation touching K&T creates a fire hazard because the wiring was designed to dissipate heat through open air.
Can I get insurance with knob-and-tube wiring?
Many insurance companies in Texas will not issue new policies or renew existing ones for homes with active knob-and-tube wiring. Some insurers offer coverage at significantly higher premiums with a written inspection report confirming the K&T is in serviceable condition. However, the trend is moving toward requiring full replacement. If you are buying a home with K&T, confirm insurability before closing. Replacing the wiring typically resolves the insurance issue immediately.
Does all knob-and-tube wiring need to be removed?
While the NEC does not mandate removal of existing K&T that is in good condition, there are practical reasons to do a complete replacement. Partial replacement leaves old K&T connected to your system, maintaining the fire risk. Insurance companies may still deny coverage if any active K&T remains. Additionally, the code prohibits adding insulation over K&T wiring, limiting your ability to properly insulate your home. A full replacement eliminates all of these concerns permanently.
How long does knob-and-tube replacement take?
A full K&T replacement in an average-sized home takes five to ten working days. The electrician first installs the new panel and begins running new circuits through the attic and crawlspace. Old K&T circuits are deactivated one at a time as new circuits are connected, so you maintain power during most of the process. Final testing, inspection, and old K&T removal fill the last days. Homes with good attic and crawlspace access go faster than those requiring extensive wall fishing.
Can I just add a ground wire to knob-and-tube wiring?
No, you cannot retrofit a ground wire into a knob-and-tube system in a meaningful way. K&T wiring runs individual hot and neutral wires through ceramic knobs and tubes, and there is no cable sheath to add a ground conductor to. The only code-compliant way to achieve grounding is to replace the K&T with modern NM-B cable that includes a ground wire. As an interim measure, you can install GFCI outlets on K&T circuits to add shock protection, but this does not address the fire risk.
Knob and Tube Wiring Replacement Service Areas in Texas
We connect you with verified knob and tube wiring replacement professionals in these neighborhoods and surrounding areas across Texas.
Houston
Dallas
San Antonio
Austin
Fort Worth
El Paso
Arlington
Plano
Corpus Christi
Lubbock
Frisco
McKinney
Round Rock
Georgetown
Cedar Park
Pflugerville
Denton
Waco
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