House Rewiring Cost Guide 2026

House rewiring is one of the largest electrical projects a homeowner can undertake — and one of the most difficult to budget for without understanding the variables. Quotes for the same home can vary by 50% or more depending on the electrician, access difficulty, and scope.

This guide breaks down rewiring costs honestly, explaining what drives the numbers and how to evaluate quotes intelligently.

What “Rewiring” Includes

Full house rewiring replaces all branch circuit wiring throughout the home. A typical rewiring project includes:

Removal of old wiring (or abandonment in place, depending on the situation)
New NM-B (Romex) cable throughout all circuits
New electrical boxes where needed
New outlets and switches throughout
New light fixture wiring (fixtures themselves may be extra)
Panel update or replacement if the existing panel is inadequate
Permits and inspections

What is typically NOT included:

New light fixtures (fixture purchase is separate; installation may or may not be included)
New appliances
Low-voltage wiring (cable TV, network, phone, security systems)
Smart home automation
EV charger circuits (may be quoted separately)

Always confirm what’s specifically included and excluded in any rewiring quote.

Cost by Home Size

These are market estimates for 2026 — costs vary significantly by region, wall type, and accessibility.

Home Size	Basic Rewire Estimate	Full Update (Panel + Wiring)
Under 1,000 sq ft	$7,000–$15,000	$10,000–$20,000
1,000–1,500 sq ft	$12,000–$22,000	$15,000–$28,000
1,500–2,500 sq ft	$18,000–$35,000	$22,000–$45,000
2,500–3,500 sq ft	$28,000–$50,000	$35,000–$65,000
3,500+ sq ft	$45,000–$80,000+	$55,000–$100,000+

Why the wide ranges? The same-sized house can vary dramatically:

A 1,500 sq ft ranch with drywall and an open basement costs half as much to rewire as a 1,500 sq ft Victorian with plaster walls, no basement, and difficult attic access
Labor rates in major cities may be 2× those in rural markets
Scope varies — some rewires replace everything; others target specific circuits or wiring types

These numbers are for planning purposes. Request at least three written estimates for your specific home.

The Single Biggest Cost Driver: Wall Access

How the electrician gets wire from point A to point B is the largest variable in rewiring cost.

Open Construction (Best Case)

If walls are already open (during a renovation, gut-rehab, or new construction), rewiring is straightforward. Electricians can see exactly where they’re going, staple cable to framing, and route cleanly. This is the scenario where the lower end of cost ranges applies.

Finished Drywall

Rewiring finished walls requires fishing wire through closed walls — drilling through plates, using fish tape or glow rods, and creating access points (typically cut and patched). Drywall patching is typically the homeowner’s or a general contractor’s responsibility unless specified otherwise in the rewiring contract. This adds cost and time compared to open construction.

Plaster Walls

Plaster is harder than drywall and more difficult to cut cleanly. Plaster over wood lath is even more challenging — the lath creates obstructions inside the wall cavity. Plaster walls increase labor time significantly, adding 20–40% to rewiring costs compared to equivalent drywall construction.

Multi-Story Without Attic Access

Running wire between floors without attic access requires drilling through the top plate, fishing up or down the wall cavity, and drilling through the bottom plate. In worst-case scenarios (cathedral ceilings, second-floor-to-basement runs), this can require removing sections of wall or ceiling for access. Multi-story homes cost more per square foot to rewire than single-story.

Wire Type

Standard rewiring uses NM-B (non-metallic sheathed cable, commonly called Romex). NM-B is the most economical and widely used wiring method for residential construction.

NM-B pricing by gauge:

14/2 (15A circuits, lighting) — approximately $0.20–$0.35/foot
12/2 (20A circuits, kitchen, bath) — approximately $0.30–$0.45/foot
12/3 (20A with extra conductor, fans, switches) — approximately $0.45–$0.70/foot
10/2 (30A circuits, dryers, AC) — approximately $0.50–$0.75/foot

Wire cost for a 2,000 sq ft home typically runs $2,000–$5,000 depending on circuit count and layout.

Conduit (if required): Some jurisdictions require conduit for certain applications (garages, basements, exposed runs). Conduit materials and additional labor add cost — typically $5–$15 per foot for conduit runs vs $1–$3 per foot for NM-B.

Panel and Service

Rewiring is commonly combined with a panel update. If the existing panel is:

Too small (100A service for a modern home)
A problematic brand (FPE/Stab-Lok, Zinsco)
Full with no room for new circuits
Outdated (fuse box, no AFCI/GFCI capabilities)

…then replacing the panel at the same time as rewiring is strongly recommended. Doing them together saves mobilization costs compared to two separate projects.

Typical panel costs:

200A panel replacement: $1,500–$3,500 (materials and labor, not including service upgrade)
200A service upgrade (panel + utility disconnect + permit + inspection): $2,500–$5,500
400A service: $4,000–$8,000+ (for large homes or additional structures)

Cost by Wiring Type Being Replaced

Replacing Knob and Tube

K&T rewiring is among the most expensive because:

Original wiring must be removed (or abandoned, adding time to document and cap)
K&T homes are typically older with plaster walls
More complex structural paths (K&T follows framing in ways modern cable doesn’t)

Budget 25–40% more than the equivalent modern-wired home of the same size.

Replacing Aluminum Branch Circuit Wiring

Full replacement of aluminum branch circuits costs similarly to rewiring copper — the wire gauge and routing requirements are the same. However, aluminum homes are sometimes only partially remediated (pigtailing at every connection point rather than full rewire). Pigtailing cost: $1,500–$5,000 for a full home, significantly less than full rewiring.

Adding Missing Circuits to Modern Wiring

Adding specific circuits (a kitchen small appliance circuit, a bathroom circuit, an EV charger circuit) rather than full rewiring is substantially less expensive:

Single circuit addition: $200–$800 depending on length and access difficulty
Adding 5–10 circuits: $2,000–$8,000

What Drives Labor Cost

Labor is typically 50–65% of the total rewiring cost. Factors that increase labor:

Number of circuits: More circuits = more wire runs = more time. A modern 2,000 sq ft home might have 30–40 circuits; an older home being updated to modern standards may need more.

Number of outlets and switches: More devices = more connections = more labor. Modern code requires more outlets than older homes had.

Distance from panel to circuits: A long run from the basement panel to a second-floor bathroom takes more time and material than a short run from an accessible subpanel.

Electrician’s productivity tools: An experienced electrician with good tools (flex bits, wire fishing systems, laser levels) works significantly faster than an apprentice crew. This affects cost — the most expensive crews may actually cost less if they work twice as fast.

Permits and Inspections

Rewiring requires a permit in virtually every jurisdiction. Typical permit costs:

Residential electrical permit: $150–$600 depending on scope and local fee schedule
Inspection fees: Often included in the permit or a separate modest fee

Budget for permits as part of the project cost — do not work with a contractor who proposes to skip the permit. Unpermitted electrical work creates problems at sale, limits insurance coverage, and leaves you without code verification.

How to Compare Accurate Estimates

Request At Least Three Written Estimates

Rewiring estimates vary significantly between contractors. Comparing three written estimates from licensed electricians is the minimum for a project of this scale.

What to Ask Each Contractor

What specifically is included (and excluded) in the estimate?
Will the panel be replaced or upgraded?
How will you access the wiring in walls? What patching is included?
What permits will you obtain?
What circuit count does the quote assume?
What is the warranty on your work?
Who will perform the work — employees or subcontractors?

Red Flags

Very low quotes with no specific scope (may indicate incomplete work or unlicensed labor)
“We’ll start without a permit and get it later” (no — get the permit first)
Reluctance to provide a written, itemized quote
No ability to provide references from completed rewiring projects

Timing and Disruption

Rewiring a lived-in home is disruptive. Expect:

Multiple consecutive days without power to specific circuits
Access to be needed in virtually every room (holes cut, outlet boxes opened)
Significant dust (drilling through drywall and plaster)
Some rooms may be less livable during work

For major rewiring projects, planning to stay elsewhere for part of the work period — or doing the rewiring in conjunction with a renovation — reduces inconvenience significantly.

House rewiring is a significant investment, but for homes with knob and tube wiring, problematic panels, or inadequate service, it’s the foundation that modern electrical systems — EV charging, smart home devices, high-efficiency appliances — require. Get multiple quotes, confirm scope in writing, and prioritize permit compliance for a project you can trust.

2026 decision refresh

Quick decision: rewiring cost should be scoped by access, circuit count, safety upgrades, and permit requirements, not just square footage. The best bid explains what walls will be opened, who repairs finishes, how AFCI/GFCI protection is handled, and whether the panel or service must change.

Existing condition	Likely scope	Do not skip
Knob-and-tube or brittle cloth wiring	Targeted or whole-home rewiring after inspection	Permit, device grounding plan, and insulation compatibility review
Aluminum branch wiring	Repair method or replacement by qualified electrician	CO/ALR, approved connectors, and documented terminations
Full panel with few modern circuits	Panel replacement plus circuit planning	Load calculation and inspection
Remodel with open walls	Rewire affected areas while access is available	Future circuits for kitchen, bath, laundry, and EV charging

Safety source note: OSHA electrical materials distinguish qualified from unqualified people around exposed energized parts. Homeowners can plan scope and document symptoms, but panel work, service changes, and energized troubleshooting belong with licensed electricians and local inspections.

Licensed electrician handoff checklist - collect panel photos, breaker labels, symptoms, and project goals before the site visit.
Electrical panel upgrade cost - compare panel-only work against full rewiring.
Knob and tube wiring: should you replace it? - focus on older-home risk factors.
Electrical permits and inspections for DIY work - understand why the paper trail matters.