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Planned project — free estimates typical

Whole-House Rewiring

Replacement of obsolete or unsafe wiring throughout a home — knob-and-tube, cloth-insulated, two-wire ungrounded or failing aluminium branch circuits.

Typical national range $8,000 – $30,000 · usually 1-3 weeks

  • Licensed electricians only — ask for the licence number and confirm it before work begins.
  • Permits pulled where the job requires one, so the work is inspected and documented for resale.
  • Every quote itemised — materials, labour, permit fee and anything that could change the scope.
  • 24/7 availability for genuine emergencies — burning smells, sparks, water damage and total power loss.
  • Local crews who know your area’s permit office, inspection timelines and housing stock.

When you need this

  • Knob-and-tube, cloth-wrapped or fabric-insulated wiring is visible
  • Two-prong outlets throughout, or three-prong outlets with no ground path
  • Aluminium branch circuit conductors on 15 and 20 amp circuits
  • Home insurance refuses coverage, or a lender requires an electrical report
  • Repeated nuisance breaker trips across multiple unrelated circuits
  • Every repair uncovers a new problem because the wire itself is the problem

Any single item above is a reason to get the circuit inspected. If you are seeing more than one, treat it as a pattern rather than a coincidence.

What whole-house rewiring costs in 2026

Whole-House Rewiring: national 2026 planning ranges — not a quote for your address.
WorkTypical rangeNotes
Whole-home rewire, open access (attic/basement bays)$8,000 – $16,000Roughly $4-$7 per sq ft in easy-access homes
Whole-home rewire, fully finished with plaster$14,000 – $30,000Up to $15 per sq ft in dense markets
Partial rewire (circuit groups / one floor)$2,500 – $9,000Often the first phase
Knob-and-tube removal and replacement$3,000 – $12,000Depends on how much remains
Aluminium branch circuit remediation$2,000 – $8,000Pigtailing copper at each device, or full replacement

Why the price varies

Access is the cost driver, not copper: a home with an unfinished attic, basement or crawlspace can cost half of one with plaster walls and no cavity access.

Phasing is common — many owners rewire circuit groups across several visits, which spreads the cost across budgets.

What a proper job includes

  • Room-by-room wiring map and a written scope before work starts
  • New grounded circuits, outlets, switches, boxes and plates
  • New AFCI and GFCI protection as required by the adopted code
  • Drywall patching of small access holes after the wire is run
  • Panel coordination, permit filings and inspection sign-off

Timing and urgency

Planned project — free estimates typical. Typical duration on site: 1-3 weeks. The single biggest timing factor is whether the work is permitted — a permit adds an inspection visit after the work, usually within a few days.

Choose your state

Pricing, permit rules and licensing all vary by state. Each page below covers this service in that state with the cities and ZIP codes where it is most requested.

Whole-House Rewiring FAQ

What warranty should I expect?

Workmanship warranties are set by the contractor, and one to two years on labour is common on larger jobs, with manufacturers covering the equipment separately. Ask for the warranty terms in writing on the invoice, not verbally.

Does knob-and-tube wiring have to be replaced?

Not automatically, if it is intact and undisturbed. The problems come from brittle insulation, buried splices, missing ground paths and the load it was never designed for. Inspectors and insurers increasingly treat it as a defect, so documentation matters.

How do I know the electrician is licensed?

Ask for the licence number before work begins and confirm it with the licensing authority for your state or municipality. Electrical licensing is handled at state level in most of the country and at city or county level in a few large metro areas, so the correct place to verify depends on where you live. A licensed contractor will give you the number, and usually the insurance certificate too, without being asked twice.

What payment methods are typical?

Card, cheque and bank transfer are common, with financing available on larger projects through some companies. Be cautious of anyone demanding full payment in cash up front — a deposit for materials is normal on large jobs, full prepayment is not.

What should I do while waiting for an electrician?

For an urgent fault, switch the affected circuit off at the panel and leave it off. If the panel itself is hot, smoking, sparking or wet, do not touch it and keep everyone away from it. Never pull a meter or open a panel, and never pour water on anything electrical.

Is a partial rewire a real option?

Yes, and it is often the smartest first step. Contractors commonly rewire the highest-risk areas first — kitchen, bathrooms, laundry and any circuit feeding a modern appliance load — then return for the rest in a later phase.

Will rewiring ruin my walls?

Technicians use existing cavities, attics, basements and crawlspaces wherever possible, cutting small access holes rather than long channels. Those holes are patched as part of the job, but paint and finish matching is usually the owner's responsibility.

Is a permit needed for electrical work?

Permits are commonly required for panel replacements, service upgrades, new circuits, and work in wet locations like kitchens, bathrooms and outdoors. Simple device replacements often do not need one. Because requirements are set locally, the safest approach is to ask the contractor who will pull the permit and confirm the inspection record afterwards.

Need whole-house rewiring?

Free phone triage: describe what is happening and find out whether it needs a visit today or can be scheduled. No obligation, no charge for the call.

Call (619) 877-0478

Open 24 hours a day, 7 days a week. Ask for the licence number and the trip fee before anyone is dispatched.