Knob-and-Tube Wiring Replacement · Reno, NV
Knob-and-Tube Wiring Replacement in Reno, NV
Knob-and-tube replacement removes early wiring (about 1880s to 1940s) that runs on ceramic knobs and tubes without a ground, and replaces it with modern grounded cable. It is commonly done before insulating, during renovations, or when an insurer requires it.
- Call now to check electrician availability in your area
- Independent, licensed electricians
- Serving Old Southwest, Newlands Heights, Wells Avenue and more
Why knob-and-tube wiring replacement comes up in Reno
Reno's Old Southwest, Newlands Heights and the Wells Avenue neighborhood hold brick bungalows and period revival homes from the 1910s to the 1940s, and knob-and-tube wiring still turns up in some of them. Rewiring usually comes up during renovation or when an insurer asks. High-desert dryness helps preserve old framing, and basements and attics give the electrician routes for new cable.
A rewire is also the time to add grounded outlets and AFCI and GFCI protection. Permits come from the City of Reno's building permits office, and NV Energy coordinates any service change.
- Some still have knob-and-tube or cloth wiring behind plaster, with circuits added for kitchens and baths over the decades.
- Reno's Old Southwest and Newlands Heights homes from the 1910s to the 1940s often have knob-and-tube, cloth wiring and small services, while 1970s and 1980s homes in the northwest may have panels electricians suggest replacing.
- Permits in Reno
- Electrical permits inside city limits come from the City of Reno's building permits office; Sparks and unincorporated Washoe County have their own. Nevada licenses electrical contractors through the State Contractors Board.
- Electric utility
- NV Energy
Signs to look for
- Ceramic knobs and tubes visible in the attic or basement
- Two-prong outlets throughout the house
- An insulation contractor or energy program requiring an assessment
- An insurer asking about wiring type
- Fuses or a small service alongside old wiring
How the work is done
1. Trace active circuits
The electrician identifies which knob-and-tube runs are still live and where they go.
2. Plan the routes
New cable routes are planned through attics, basements and walls to minimize openings.
3. Install new circuits
Grounded cable, boxes and devices are installed and the old wiring is disconnected.
4. Inspect and patch
Rough-in and final inspections are completed, and access holes are patched.
What moves the price in Reno
Electricians set their own prices. Older homes often have small services and limited outlets, while foothill homes face wildfire-season power shutoffs.
- How much knob-and-tube is still active
- Plaster versus drywall walls
- Attic and basement access
- Number of floors
- Panel upgrade at the same time
- Wall patching and painting
Knob-and-Tube Wiring Replacement in Reno: questions
Do I need a permit for knob-and-tube wiring replacement in Reno?
Usually, yes. Electrical permits inside city limits come from the City of Reno's building permits office; Sparks and unincorporated Washoe County have their own. Nevada licenses electrical contractors through the State Contractors Board. The electrician normally pulls the permit and schedules the inspection.
Is the utility involved in Reno?
If the work affects the meter or service, the electrician coordinates with NV Energy, which owns the meter and service drop.
Is knob-and-tube wiring illegal?
Existing knob-and-tube is generally not illegal, but it cannot be extended, and many insurers and lenders treat it as a reason to replace.
Can knob-and-tube be insulated over?
It is not recommended, and many codes and insulation programs prohibit it, because the wiring relies on open air to cool.
How do I know if mine is still live?
An electrician can test it. Many homes have a mix of active and abandoned knob-and-tube.
How long does replacement take?
From a few days for a small home with good access to a few weeks for larger plaster-walled homes.
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