856.426.1522 Ask Bob Activate Benefits
Ask Bob Electrical What is the difference between aluminum and copper wiring?
Back to Electrical

What is the difference between aluminum and copper wiring?

By Bob Millaway, South Jersey Community Expert & REALTOR®

Copper is more conductive, durable, and safer than aluminum. Aluminum wiring was widely used in the 1960s and 1970s due to copper shortages but is now known to be a fire risk. Aluminum expands and contracts more with temperature changes, causing connections to loosen and overheat. Homes with aluminum wiring may need special connectors or full rewiring for safety.

Why It Matters

If your home has aluminum wiring built between 1965 and 1973, it needs special attention. Upgrading or installing approved connectors reduces fire risk significantly.

Related Questions

When should I call an electrician? What is a home electrical panel and when should it be upgraded? Why do my lights flicker when the AC turns on? What are GFCI and AFCI outlets and where do I need them? Can I do my own electrical work?

Need Professional Help?

Bob recommends reaching out to a trusted local professional.

Electrical Professionals Electrical

Explore South Jersey with Bob

Living here is about more than the house. Bob's community guides help you find the right town, compare neighborhoods, and keep up with what's happening across Burlington County and South Jersey.

Best Places to Live Relocation Guide Compare Communities Regional Market Trends Community Directory Ask Bob Q&A Library
Want to know what it's really like to live here? Reach out to Bob.

Still Need Help?

Bob answers every question personally. Send your question directly to him.

Ask Bob Directly