Knob and tube wiring replacement in Dallas
Remove and replace knob-and-tube and cloth wiring in pre-1940s Dallas homes.
Short answer: Knob-and-tube wiring from the early 1900s has no ground, aging insulation and splices that were never meant for modern loads or attic insulation. Replacing it with new copper circuits is the long-term fix.
Knob-and-tube runs single wires through porcelain knobs and tubes in attics and walls. It was designed to cool in open air. Blown-in attic insulation, decades of added splices and brittle rubber insulation turn it into a heat and fire risk.
We find every active run, replace it with new grounded circuits, and disconnect and remove what is accessible. Many insurers will not write a policy on a house with active knob-and-tube.
Knob and Tube Replacement: signs to watch for
- Porcelain knobs and tubes visible in the attic or basement
- Two-prong outlets and push-button or toggle switches from the 1920s
- Insulation was blown over old wiring in the attic
- An insurer or buyer flagged the wiring
- Fuses or a very small panel
How we handle it
- Trace active knob-and-tube and map what it feeds
- Plan new circuit routes that protect plaster and trim
- Install new grounded circuits and a panel if needed
- Disconnect and remove accessible old wiring, then inspect
Typical knob and tube replacement
Whole-house range; partial replacements cost less.
Partial or full replacement
If your insurer requires all active knob-and-tube to be removed, a full replacement is the only option. If not, some owners start with the most used circuits, like kitchens, baths and bedrooms, and the runs buried in attic insulation. We map every active run first so you know exactly what remains after each phase.
What moves the price
- How many active runs remain
- Plaster walls and original trim
- Panel replacement at the same time
Knob and Tube Replacement in Dallas homes
Dallas neighborhoods built before 1940, such as Junius Heights, Swiss Avenue, the M Streets, Winnetka Heights, Kessler Park and parts of Highland Park, still have knob-and-tube in attics, sometimes still live. If you are buying an older house there, have it checked before closing.
Questions people ask us
Is knob and tube wiring illegal in Texas?
Existing knob-and-tube is not automatically illegal, but extending it is not allowed and many insurers refuse coverage.
Can knob and tube be partly replaced?
Yes. We can replace the most used or most damaged runs first, though full replacement is the lasting fix.
Will you damage my plaster walls?
Some small openings are needed. We plan routes through attics and floors to keep them minimal and repairable.
Related services
Lights out, breaker tripping, or a burning smell?
Call now. A person answers around the clock and we send the nearest NTX electrician who can safely take the job.