How Much Does It Cost to Fix Aluminum Wiring with Pigtails in Ontario?

How Much Does It Cost to Fix Aluminum Wiring with Pigtails in Ontario?

Aluminum wiring was commonly installed in Ontario homes built between approximately 1965 and 1975. Unlike copper, aluminum expands and contracts more with temperature changes and is more prone to oxidation at connection points — increasing the risk of overheating and electrical fires if left unaddressed. One of the accepted remediation methods in Canada is copper pigtailing, also known as CO/ALR pigtailing. Here is what this repair costs in Ontario.

Aluminum Wiring Pigtail Fix Cost in Ontario

Fixing aluminum wiring with copper pigtails in Ontario costs $40 per outlet or connection point. This price covers the pigtailing work at each device — adding a short copper wire at each outlet, switch, or connection point and joining it to the aluminum wire using an approved connector, so the device makes a copper-to-copper connection instead of aluminum-to-device.

What Is Aluminum Wiring Pigtailing?

Pigtailing involves attaching a short length of copper wire to the end of the aluminum branch circuit wire at each outlet, switch, or junction point. The aluminum and copper wires are joined using a twist-on connector approved for aluminum-to-copper connections — in Canada, connectors rated for this purpose are typically labelled AL/CU or CO/ALR.

The result is that the device (outlet, switch) connects to copper rather than directly to aluminum — eliminating the aluminum-to-device connection that is the primary source of overheating risk.

Is Pigtailing an Approved Repair for Aluminum Wiring in Ontario?

Yes. The Electrical Safety Authority (ESA) of Ontario recognizes copper pigtailing as an accepted method for addressing aluminum wiring safety concerns when performed correctly by a licensed electrical contractor using approved connectors. The repair must be done at every connection point — outlets, switches, fixtures, and any junction boxes — throughout the affected circuits.

Pigtailing is generally less expensive than full rewiring, making it the most common choice for homeowners who want to address aluminum wiring safety issues without replacing the wiring throughout the home.

When Is Full Rewiring Needed Instead of Pigtailing?

Pigtailing is appropriate for aluminum branch circuit wiring. It is not a substitute for rewiring when:

• The wiring insulation is damaged, brittle, or deteriorated
• The aluminum wiring is knob-and-tube (a completely different concern requiring full replacement)
• The homeowner or insurer requires full rewiring as a condition of coverage or sale

Your licensed electrical contractor will assess the condition of the aluminum wiring and recommend whether pigtailing is sufficient or whether additional remediation is needed.

Does Aluminum Wiring Pigtailing Require a Permit in Ontario?

Aluminum wiring remediation work that is limited to pigtailing at outlets and switches may not require an ESA permit in all cases. However, if the scope of work extends to panel work, junction boxes, or other elements, a permit may be required. Your licensed electrician will confirm what is needed before work begins.

Get Aluminum Wiring Pigtailed by a Licensed Electrician

EZSMART performs aluminum wiring pigtail remediation for residential properties across Ontario. We assess the scope of the aluminum wiring throughout your home, provide a per-outlet price, and complete the pigtailing at every connection point using ESA-approved connectors.

Contact us today to schedule an assessment of your aluminum wiring.

Amir Azimipour

Electrician Since 2008 Journeyman Electrician Designated Master Electrician at EZSMART Corp