Aluminum Wiring Replacement and Pigtailing in Whitby

Is aluminum wiring dangerous? The wire itself is not the main risk. The risk is at the connections, where aluminum can loosen, oxidize and overheat over time. Pigtailing those connections or replacing the wiring with copper makes your home safe and easier to insure.

Wilson Electric repairs and replaces aluminum wiring across Whitby and Durham Region. Every job is handled by a licensed residential electrician in Whitby, and many projects pair with an electrical panel upgrade so the whole system meets today’s code. Read our guide to aluminum wiring in Durham Region for what insurers and the ESA expect.

Many homes built from about 1965 to 1976 have aluminum wiring. Some insurers will not cover these homes until the wiring has been inspected and made safe. After we fix it, the ESA inspects the work and issues a certificate you can give your insurer.

Google logo

Wilson Electric Installations Inc

#7014161

Request Electrical Service

Call For Immediate Service
wilson Wiring in Homes 1920x1200 1

How Do I Know If My Home Has Aluminum Wiring?

Look at the cable jacket in your basement or at the panel. Aluminum cable is often stamped “AL” or “ALUMINUM”, and the bare wire is silver, not copper-coloured. Homes built from about 1965 to 1976 are the most likely to have it.

A typical home has a connection at every outlet, switch and light. Each one needs to be done right, which is why a licensed electrician should check them.

Why Are Aluminum Connections a Risk?

Aluminum wire is safe inside the walls. The problems start where it connects to outlets, switches and fixtures:
Aluminum is soft, so it can nick or break when it is bent, which can create hot spots.
It expands and shrinks more than copper as it heats and cools, which can loosen screw connections.
It oxidizes, and that layer resists current and can cause heat at the connection.
It can corrode when it touches other metals used on standard devices.
A loose, hot connection is what can lead to a fire. That is why the fix focuses on the connections.

When Should Aluminum Wiring Be Replaced?

Not every home needs a full rewire. If the wiring is in good shape, making the connections safe is often enough. Full replacement makes sense when the wiring is damaged, when you are renovating anyway or when your insurer asks for it. Here is how aluminum compares with copper:

1.

Conductivity

Aluminum carries less current than copper wire of the same size, so aluminum circuits used a larger wire.
2.

Durability

Aluminum is softer and less flexible than copper. It can be damaged if it is twisted, bent or handled roughly during repairs.
3.

Heat at Connections

A loose aluminum connection can heat up. Over time, that heat can damage the device and the wire insulation around it.
4.

Corrosion

Aluminum can corrode at connections, which makes them less reliable over time.
If you have an older home, have a licensed electrician inspect the wiring. We will tell you whether pigtailing is enough or whether replacing the wiring with copper is the better choice. Contact Wilson Electric to book an inspection.
Call Now for Immediate Service

How Much Does Aluminum Wiring Repair Cost?

Here are typical prices in Durham Region. They are plus HST, and your final price comes after we see your home:

  • Pigtailing: about $50 to $80 per connection
  • Pigtailing a whole home: about $2,000 to $4,500 for a typical three-bedroom home
  • Full rewire with copper: from about $8,000, with most homes $12,000 to $20,000 or more

The number of outlets, switches and lights, and how easy the walls are to reach, drive the price. Contact Wilson Electric to repair or replace the aluminum wiring in your home.

Benefits of Replacing Aluminum Wiring with Copper Wiring

Copper wiring is undoubtedly superior to aluminum wiring. As a result, replacing aluminum wiring with copper wiring offers the following benefits:
From the above, it is better to replace aluminum wiring with copper wiring for safety purposes.

Pigtailing vs Full Aluminum Wiring Replacement

Pigtailing adds a short piece of copper wire at each connection. The copper then connects to your outlets, switches and lights. We use connectors made for this job, such as AlumiConn or COPALUM. Pigtailing is faster and costs less than a rewire, and the ESA inspects it and issues a certificate.

Full replacement removes the aluminum branch wiring and puts in new copper. It is the most complete fix. It makes the most sense when the wiring is damaged or when walls are already open for a renovation.

CO/ALR devices are outlets and switches rated for aluminum wire. They can help at some devices, but they do not cover every connection in the home, so they are a limited option on their own.

wilson Wiring Rejuvenationv2 1200x1600 1

How Wilson Electric Can Help

Planning to repair or replace the aluminum wiring in your home? Wilson Electric is a licensed electrical contractor. We inspect your wiring, explain your options and give you a clear price. When the work is done, we arrange the ESA inspection so you get the certificate your insurer may ask for. Contact us today to book an inspection.

Aluminum Wiring FAQ

Is aluminum wiring dangerous?
The risk is at the connections, not the wire in the walls. Loose or corroded connections can overheat. Making them safe removes most of the risk.

How can I tell if I have aluminum wiring?
Look for “AL” or “ALUMINUM” printed on the cable in your basement or at the panel. The bare wire is silver, not copper-coloured.

Will pigtailing satisfy my insurance company?
Many insurers accept pigtailing once the ESA has inspected it and issued a certificate. Ask your insurer what they need before we start, and we will make sure you get it.

Does aluminum wiring affect resale?
It can. Buyers and their insurers often ask about it. An ESA certificate showing the wiring has been made safe makes the sale easier.

Do I need an ESA permit in Durham Region?
Yes. Aluminum wiring repair and replacement need an ESA notification and inspection. We file it and book the inspection for you.

Residential Electricians Related Articles

Wilson Electric technician in a modern kitchen holding an approved inspection clipboard, Pickering
Residential Electrician
getxseoteam

Kitchen Appliance Circuits: Why Dedicated Wiring Matters

Kitchen appliance circuits are dedicated 20-amp electrical lines that power individual high-draw appliances like refrigerators, dishwashers, and microwaves. Ontario Electrical Safety Code requires separate circuits for appliances drawing over 12 amps to prevent overloads and tripped breakers. Modern kitchens typically need 6-8 dedicated circuits, including two 20-amp small appliance circuits for countertop outlets. Proper circuit planning prevents nuisance tripping and ensures safe appliance operation.

Read More »
Smiling Wilson Electric electrician with arms crossed by the service van at a Pickering home
Residential Electrician
getxseoteam

Home Electrical Safety: Warning Signs You Need Repairs

Home electrical safety depends on recognizing warning signs that indicate needed repairs. Flickering lights, frequent breaker trips, burning odors near outlets, and warm switch plates all signal potential hazards requiring immediate attention. Homes over 25 years old often have outdated wiring that cannot handle modern electrical loads. Regular electrical inspections every 3-5 years help identify problems before they become fire hazards or cause equipment damage.

Read More »
Electrician shaking hands with a homeowner outside a newly built house
Residential Electrician
getxseoteam

New Home Electrical: Construction Wiring & Smart Home Planning

New home electrical planning determines outlet placement, circuit capacity, and smart home infrastructure before construction begins. Standard new builds require 20+ circuits including dedicated lines for kitchen appliances, HVAC, and laundry. Smart home wiring includes CAT6 ethernet runs, low-voltage pathways, and smart switch neutral wires at every switch box. Pre-wiring for EV chargers, hot tubs, and home offices costs 70% less during construction than retrofitting later. Rough-in electrical occurs after framing but before insulation and drywall installation.

Read More »

Wilson Electricians Service Guarantee

We at Wilson Electric are committed to providing the highest level of service to our customers. We endeavour to respect you and your property when delivering electrician services in Whitby, Ontario. All of our employees are accompanied by a master or journeyman electrician, guaranteeing that the electrical work is performed by experienced electricians who are properly qualified and certified.

Wilson Electrical Code and Safety Guarantee

All work undertaken by our electricians is guaranteed to meet or exceed the electrical code. We acquire all necessary electrical permits in house and conduct all necessary electrical inspections. We guarantee that we comply with the Ontario Electrical Codes and Standards on every job we do.

Request Electrical Service