Cost to Replace Aluminum Wiring With Copper

Full aluminum-to-copper rewiring costs $5,000 to $40,000 depending on home size and scope — roughly $5,000-$7,000 for a 1,000 sq ft home up to $10,000-$15,000+ for larger homes needing panel and wall work. The cheaper alternative, "pigtailing" (splicing a short copper connector onto each aluminum wire at outlets and switches rather than replacing the wiring itself), avoids that cost but addresses only the connection points, not the wire runs themselves. See our general electrical repair cost guide for how this compares to other electrical work.

Cost comparison: pigtailing vs. full rewire

A note on pigtailing pricing: quotes vary enormously by source — some contractor sites cite $50-$150 in labor per outlet for straightforward pigtail splices, while others quote $800-$2,500 per outlet for more involved access or code-upgrade work bundled into the same visit. Get a specific per-outlet quote for your home rather than assuming either end of that range, since the spread mostly reflects how much other work is bundled into the visit.

Why this isn't optional for many homeowners

A 2011 Consumer Product Safety Commission study found that homes wired with aluminum branch circuits (common in homes built roughly 1965 to 1973) are 55 times more likely to develop fire-hazard conditions at outlet and switch connections than copper-wired homes, due to aluminum's tendency to oxidize and loosen at connection points over time. Because of this, insurers increasingly require an inspection, pigtail remediation, or full replacement before writing or renewing a homeowners policy on an aluminum-wired house.

Pigtailing vs. full replacement: which to choose

• Pigtailing is the standard, code-accepted fix in most jurisdictions when done with proper connectors (like AlumiConn or COPALUM), and is dramatically cheaper than full replacement — it's usually the right call if your only goal is safety and insurance compliance.
• Full replacement makes more sense if you're already opening walls for a renovation, if the home also has other aging systems worth addressing at once, or if you plan to sell and want to market the home as fully rewired rather than remediated.

Related old-home wiring issues

If your home is older still, it may have knob and tube wiring rather than aluminum — a different problem with its own cost profile; see Knob and Tube Wiring Replacement Cost. Whichever type you have, get hourly labor context from Electrician Cost Per Hour: 2026 Rates Explained before comparing quotes.

Prices on this page are researched ranges compiled from multiple public contractor-pricing sources, not quotes from us or a guarantee of what you will pay. Actual costs vary by region, material choice, and job complexity — always get itemized quotes from licensed local contractors before committing to a project. See How We Price for our sourcing methodology.

Frequently Asked Questions

How do I know if my home has aluminum wiring?

Homes built roughly between 1965 and 1973 are the most likely candidates. A licensed electrician can confirm by inspecting the wiring at the panel and at a few outlets — aluminum wire has a distinct dull silver color compared to copper's reddish-orange, but a professional inspection is the reliable way to confirm it.

Will my insurance company cancel my policy over aluminum wiring?

Some insurers will decline to write a new policy or may decline to renew an existing one without proof of remediation (typically pigtailing with approved connectors) or a clean electrical inspection. Policies vary significantly by insurer and state, so check with your specific company rather than assuming either outcome.

Is pigtailing a permanent fix, or will I need full rewiring eventually?

Properly done pigtailing with code-approved connectors is considered a permanent, code-accepted solution by most electrical authorities and insurers — it isn't a temporary patch. Full rewiring is a separate choice driven more by renovation plans or wanting to eliminate aluminum wire entirely, not a requirement after pigtailing.

Can I pigtail aluminum wiring myself?

This is not a recommended DIY project. Improper pigtail connections are a known fire risk, and most insurers and code officials require the work be done by a licensed electrician using approved connectors and techniques to count as valid remediation.