Whole-Home Rewiring: When It's Required and What It Costs

Full rewires are less common than social media makes them look - but when they are actually needed, half-measures do not work. Here is how to tell the difference, and what the real project looks like.

Full rewires are the biggest single job most homeowners will ever consider hiring an electrician for, and the least common. Most homes that people assume need a rewire actually need something more targeted - a panel upgrade, a kitchen or basement circuit refresh, an aluminum-to-copper remediation of specific rooms. This guide separates the cases where a full rewire is actually the right answer from the cases where it is not, and walks through what a real rewire project looks like when it is warranted.

What a 'whole-home rewire' actually means

A full rewire replaces every branch circuit in the house - the wire from the panel to every outlet, switch, and fixture - along with the panel itself and, usually, the service entrance. It does not necessarily replace fixtures or appliances. It is fundamentally a wiring project.

When it is actually required

• Knob-and-tube wiring throughout - pre-1950s homes still standing on original wiring. Insurers universally require replacement.
• Aluminum branch-circuit wiring throughout a single-family home - 1965–1974 era, if remediation cannot be scoped to specific rooms.
• Extensive fire damage - smoke and heat compromise insulation integrity in ways that spot repair cannot fix.
• Water damage with meaningful conductor exposure - long-term flood or leak exposure that has degraded insulation.
• Failed insulation testing - old rubber-insulated wire (pre-1960s) that fails a megger test even without visible damage.

When it is not required

• Two-prong outlets everywhere. This is usually a grounding problem, not a wiring problem. GFCI protection at the panel or per-circuit is a code-compliant fix.
• One flickering light or a dead outlet. Almost always a single-circuit issue.
• An old panel. Panel replacement is a much smaller and cheaper project.
• Cloth-jacket wire that tests fine. The jacket looks alarming but is often not a problem - the conductor and insulation are what matter.
• Aluminum wiring in a condo unit. Remediation is scoped as a community-wide project, not a single-unit rewire.

What the process looks like

Phase 1 - Assessment

A licensed electrician walks every room, checks the panel and every accessible junction box, tests insulation on representative circuits, documents existing device counts and locations, and quotes flat-fee. Assume 2 to 4 hours of on-site assessment on a typical 3-bedroom home.

Phase 2 - Planning

The quote should include: the new panel spec, the number of new circuits (typically more than the house has today because current code requires dedicated circuits for kitchen counters, laundry, bath, etc.), the number of new outlets required by current code (fewer feet between outlets than older codes required), and the drywall access plan.

Phase 3 - Execution

Most rewires run 2 to 4 weeks depending on house size, whether the family is living in it during the work, and how accessible the walls and ceilings are. Homes with unfinished basements and attics are much faster to rewire than homes with finished basements and cathedral ceilings. Drywall access cuts are made where necessary; patching, sanding, priming, and painting are handled by a drywall trade - not the electrical crew.

2026 rewire pricing in the DMV

• Small rowhouse or bungalow (under 1,500 sq ft, 2 bed / 1 bath, unfinished basement): $16,000 – $26,000.
• Standard single-family (1,500–2,500 sq ft, 3 bed / 2 bath, unfinished or partially finished basement): $22,000 – $38,000.
• Larger single-family (2,500–3,500 sq ft, 4 bed / 3 bath, finished basement): $32,000 – $52,000.
• Historic or fully finished home requiring extensive access management: $45,000 – $75,000+.

These ranges include the panel and typical service upgrade. They do not include drywall repair, painting, flooring repair, or fixture upgrades - those are separate trades on separate scopes.

Do it during a bigger project if you can

Rewires are dramatically cheaper and cleaner when they piggyback on a gut renovation. If you are already opening walls for a kitchen remodel, a basement finish, or a whole-home reno, adding the rewire is the right time. Doing it as a standalone project on a fully finished, occupied home costs 30–60% more for the same wire.

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