Aluminum vs. Copper Wiring: a cheat sheet

Your home's electrical wiring is a crucial aspect of its safety and performance. The choice between aluminum and copper wiring has significant implications. Homes in Milton and elsewhere built in the 1960s and 1970s most likely had aluminum wiring installed.  Let's explore the key differences and when rewiring may be necessary.

Aluminum Wiring

Pros:

1. Cost-effective
2. Lightweight
3. Good conductivity

Cons:

1. Susceptible to corrosion
2. Expansion and contraction issues
3. Slightly higher fire risk

Copper Wiring

Pros:

1. Excellent conductivity
2. Durable and long-lasting
3. Heat-resistant

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Cons:

1. Higher cost
2. Heavier
3. Prone to theft

When to Consider Rewiring
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1. Homes with older aluminum wiring (1960s-1970s)
2. Signs of corrosion, overheating, or frequent electrical problems
3. During major renovations or additions
4. Insurance concerns or safety issues
5. Inadequate electrical capacity

Always hire a licensed electrician Milton locals need for rewiring projects to ensure safety and compliance with electrical codes. Choosing the right wiring material is essential for your home's long-term safety and efficiency.  You can also refer to ESA's guideline on aluminum wiring.