What You're Actually Dealing With Here
Between 1965 and the mid-1970s, builders across North Carolina installed aluminum wiring in roughly two million homes because copper prices shot through the roof. It made sense at the time. But aluminum behaves differently than copper—it expands and contracts more when electricity flows through it, which loosens connections at outlets, switches, and junction boxes over the years.
Those loose connections create resistance. Resistance creates heat. Heat damages insulation, melts wire jackets, and in worst-case scenarios, starts fires inside your walls. The U.S. Consumer Product Safety Commission found that homes with aluminum wiring are 55 times more likely to reach fire hazard conditions than homes wired with copper.
If you’re buying a home built during that era, or you already own one and just found out it has aluminum wiring, you’re probably wondering what to do next. The good news is that you don’t necessarily need to rewire your entire house. There are proven, permanent remediation methods that eliminate the hazard at every connection point—and that’s exactly what we specialize in.
What Proper Remediation Actually Gets You
This isn't about checking a box for an insurance company. It's about making your home genuinely safer and protecting what's probably your biggest investment.
Why Aluminum Wiring Becomes Dangerous Over Time
Aluminum isn’t inherently unsafe—utility companies still use it for power transmission lines. The problem is what happens at the connections inside your home, and it’s a combination of physics and chemistry working against you.
When electricity flows through aluminum wire, the wire heats up and expands. When the load drops, it cools and contracts. Copper does this too, but aluminum’s expansion rate is significantly higher. Over thousands of heating and cooling cycles—which happen every single day in your home—the wire literally creeps out from under the terminal screws at your outlets and switches. That creates gaps, and gaps create resistance.
Then there’s oxidation. Aluminum forms an oxide layer when exposed to air, and unlike copper oxide (which still conducts electricity), aluminum oxide is an insulator. It increases resistance even more. More resistance means more heat. More heat means faster deterioration of the connection, more oxidation, looser screws, and the cycle accelerates.
Add in the fact that aluminum is softer than copper and gets nicked more easily during installation, and you’ve got a wiring system that degrades faster and fails more dramatically than anyone expected back in the 1960s. The connections don’t just stop working they overheat to the point where they can ignite the materials around them. That’s why the Consumer Product Safety Commission and insurance companies take this so seriously.
How We Actually Fix Aluminum Wiring
What's Included in a Proper Aluminum Wiring Remediation
A real remediation isn’t just replacing a few outlets with CO/ALR-rated devices and calling it done. That’s a band-aid, and it’s not what the Consumer Product Safety Commission recommends for a permanent fix.
The right approach involves pigtailing every single aluminum wire connection in your home—outlets, switches, light fixtures, junction boxes, appliances, everything. We attach a short section of copper wire to the end of each aluminum wire using specialized connectors (COPALUM or AlumiConn) that are specifically engineered for aluminum-to-copper transitions. The copper pigtail then connects to your device, which eliminates the problem at the exact point where failures happen.
COPALUM connectors use a special crimping system that creates what’s essentially a cold weld between the aluminum and copper. It’s the gold standard, but it requires specialized tools and training. AlumiConn connectors are lug-style connectors that any licensed electrician can install with the proper torque screwdriver—they’re the next best alternative and what we use most often for residential work in the Triangle area.
ESP Electrical Service Providers also inspects your electrical panel for mixed aluminum and copper connections, double-tapped lugs, burnt terminals, and other issues that commonly show up in homes from this era. If your panel needs work, we address it. If your circuits would benefit from arc fault protection, we recommend it. The goal is a complete, permanent solution that you won’t have to worry about again.
Frequently Asked Questions