If your home in Haverhill, Methuen, Lawrence, or anywhere in the Merrimack Valley was built between 1965 and 1973, it may have aluminum branch circuit wiring. This was common during a period when copper prices spiked and aluminum was used as a lower-cost alternative. The problem: aluminum wiring has specific characteristics that make it a potential fire hazard if not properly maintained or remediated.
Aluminum expands and contracts more than copper as it heats and cools. Over decades, this movement can cause connections at outlets, switches, and fixtures to loosen. A loose connection creates resistance, which generates heat — and that heat can cause a fire, often inside a wall where it goes undetected.
Additionally, aluminum oxidizes when exposed to air, and aluminum oxide is a poor conductor. This further increases resistance at connection points over time.
The most complete solution is replacing all aluminum branch circuit wiring with copper. This is the most expensive option but eliminates the risk entirely. It's most practical during a major renovation when walls are open.
The Consumer Product Safety Commission (CPSC) recommends pigtailing aluminum wires to short copper "pigtails" using approved COPALUM crimp connectors. This creates a reliable copper-to-aluminum connection at every device and is a widely accepted remediation method.
AlumiConn connectors are a listed alternative to COPALUM and are more accessible since they don't require specialized crimping tools. They're installed at every outlet, switch, and fixture connection point.
Giardi Electric assesses aluminum wiring in homes throughout Haverhill, MA and the Merrimack Valley and recommends the right remediation for your situation.
📞 Call 857-600-0093Not panicked — but proactive. Aluminum wiring that has never been touched may be fine, but connections that have been disturbed or are in older devices are worth inspecting. If you're buying or selling a home with aluminum wiring in the Haverhill area, it's worth having a licensed electrician assess the system before closing.
Questions about aluminum wiring in your home? Call or text Giardi Electric at 857-600-0093 for a free assessment.