Should I upgrade my aluminum wiring connections or do a full rewire in New Brunswick?

For most NB homes with aluminum wiring, pigtailing with approved connectors (COPALUM or AlumiConn) is the recommended first step — a full rewire is only necessary if the wiring itself is damaged or your insurance company demands it.

Understanding the issue:

Aluminum branch circuit wiring was installed in many NB homes built between 1965-1976. The aluminum wire itself isn't inherently dangerous — it's the connections that cause problems. Aluminum expands and contracts more than copper with temperature changes, gradually loosening connections at outlets, switches, and junction boxes. Loose connections create heat, arcing, and fire risk.

Option 1: Pigtailing (repair connections) — $2,500-$5,000

A licensed electrician installs approved connectors that join a short copper "pigtail" wire to each aluminum wire end. The copper pigtail then connects to the outlet or switch. This addresses the connection problem without replacing all the wiring.

Approved connector methods:

• COPALUM crimp connectors: Considered the gold standard. Requires a special crimping tool only certified electricians carry. Creates a permanent, maintenance-free connection. Cost: $50-$80 per connection point


• AlumiConn connectors: Approved alternative that's more widely available. Uses set screws to create reliable aluminum-to-copper connections. Cost: $30-$50 per connection point


• Ideal Twister Al/Cu wire nuts: Listed for aluminum-to-copper connections, applied with anti-oxidant compound. Least expensive option but considered less reliable long-term

A typical NB home has 40-80 connection points (every outlet, switch, light fixture, and junction box on aluminum circuits).

Option 2: Full rewire — $15,000-$30,000+

Complete removal of aluminum wiring and replacement with copper throughout the home. This involves:

• Opening walls and ceilings (and repairing them after)


• Running all new copper circuits from the panel


• New outlets, switches, and fixtures


• TSANB permit and inspection


• 1-2 weeks of work for a typical home

When full rewire IS necessary:

• Wire insulation is cracked, brittle, or damaged (common in attics exposed to NB heat/cold cycles)


• Your home insurance company refuses coverage without full replacement (some NB insurers take this stance)


• You're doing a major renovation with walls already open


• The panel is undersized and needs upgrading anyway — a rewire addresses everything at once

When pigtailing is sufficient:

• Wire insulation is in good condition


• Your insurance company accepts pigtailing as remediation


• You want the most cost-effective safety improvement


• You're not planning a major renovation

Insurance considerations in NB:
Contact your home insurance provider BEFORE deciding. Some NB insurers (Wawanesa, Aviva, Intact) accept pigtailing with COPALUM connectors. Others require full rewire. Getting this answer first saves you from doing work that doesn't satisfy your insurer.

Your next step: Get a licensed electrician to inspect your aluminum wiring connections and provide quotes for both options. They can assess the wire condition and help you make the right choice for your situation.

---

Find a Electrical Contractor

New Brunswick Electrical connects you with experienced contractors through the https://newbrunswickconstructionnetwork.com:

• A+ Solar Solutions ✓
• A&S Electric Ltd. ✓
• BCB Electric ✓

View all electrical contractors →