Aluminum wiring remediation

Aluminum wiring remediation is the job that most often starts with an insurance letter. A renewal notice asks about the wiring for the first time in decades, and a deadline arrives with it.

The fix is smaller than most people fear, because the risk is smaller and more specific than the letters imply.

What aluminum wiring remediation actually is

Aluminum branch wiring, standard in Canadian houses from roughly 1965 to 1978, carries current perfectly well. What fails is the connections: aluminum moves with temperature more than copper and creeps under screw pressure, so a terminal tightened in 1972 can be loose today, and a loose connection makes heat where heat starts fires.

So aluminum wiring remediation goes connection by connection. Every accessible outlet, switch, splice and fixture on the aluminum circuits is opened, ended with an approved connector or replaced with a device rated for aluminum, and closed. The walls stay closed and the wire stays where it is, because the wire was never the problem. Pulling all of it out is a rewire, which for most houses is neither necessary nor affordable.

The insurer decides the paperwork

Before we quote, we ask what your insurer has asked for in writing. Most accept a remediation letter from a licensed electrician; some want the permit number; a few insist on full replacement, which is a different and much larger job. Doing the work to their letter the first time is far cheaper than arguing afterwards.

A receipt that says “electrical work” will not satisfy anyone. Tell us at the start that you need a letter and what your broker asked for, and it comes out of the job rather than out of a later phone call.

Where this comes up in the HRM

That window is exactly when Lower Sackville, Cole Harbour and much of postwar Dartmouth were built, so this is one of the most common jobs we see in those communities. It often runs alongside a panel upgrade, because a house of that age is frequently due for one anyway.

The window, and why it matters

What went into houses in that window is aluminum on the branch circuits: the 15 and 20 amp lighting and receptacle wiring that ends at a device somebody can put a screwdriver on. Heavier aluminum conductors feeding a range or a whole service are a different thing, they are still installed today, and they are not what the insurance letters are about.

That is why the size of the job is counted in devices rather than in square footage. A small house with a lot of outlets takes longer than a large one with few.

Doing it the way insurers accept

The method matters more than the material. A pigtail made with the wrong connector is worse than nothing, because it looks like the problem was addressed. We use connectors rated and approved for aluminum to copper terminations, at every device, and we write down what was done at each one.

What we find behind the plates

Devices from the era that were never rated for aluminum. Backstabbed connections. Previous pigtails made with the wrong connector or with wire nuts that were never approved for the purpose. Occasionally a device that has already been running warm for years, which is the one that makes the case for doing the rest of the house.

The permit question

Remediation of existing devices is generally maintenance rather than new installation, but the scope varies and so does the answer. If the work extends to new circuits or panel changes it is permitted work, and in Nova Scotia only a certified electrician can pull that permit. The electrical permits and inspections page explains how it runs.

If the panel is also of that vintage, the conversation usually widens to a panel upgrade at the same time, because the two jobs share access and scheduling.