If your home was built between the mid-1960s and late 1970s, there’s a chance it may contain aluminum wiring—a once-common electrical solution that has since been linked to serious safety risks. While this type of wiring was considered a cost-effective alternative at the time, we now know it can lead to overheating, fire hazards, and electrical failures.
At Peaden, we’ve helped many homeowners identify and do rewiring in Tallahassee, FL to remove aluminum wiring. We’ll explain why aluminum wiring was used and why it’s no longer recommended.
Why Some Homes Still Have Aluminum Wiring
During the 1960s and early 1970s, the demand for new housing soared—and so did the price of copper. To keep construction costs down, many builders turned to aluminum wiring as a cheaper alternative for electrical circuits.
At the time, aluminum seemed like a logical substitute. It conducted electricity and was readily available. But over the years, electricians and homeowners began to notice a troubling trend: homes with aluminum wiring experienced more electrical issues and fires than those wired with copper.
What Went Wrong With Aluminum Wiring?
While aluminum does conduct electricity, it behaves very differently from copper—and that’s where the problems started.
1. Expansion and Contraction
Aluminum expands and contracts more than copper when it heats and cools. Over time, this movement can loosen connections at switches, outlets, and junction boxes, creating dangerous gaps where arcing and overheating can occur.
2. Oxidation
Aluminum wiring is more prone to oxidation than copper. When aluminum oxidizes, it forms a non-conductive layer that increases resistance and heat buildup at connection points—another fire risk.
3. Incompatibility With Fixtures
Many devices and terminals are designed specifically for copper. Using aluminum wiring with fixtures not rated for it can lead to loose connections and electrical failures.
These flaws became so evident that by the late 1970s, aluminum wiring was largely discontinued in residential construction. But thousands of homes—especially in older Tallahassee neighborhoods—still have it in place today.
Why You Should Replace Aluminum Wiring
If your home has aluminum wiring, it’s not just an outdated feature—it’s a potential hazard. According to the U.S. Consumer Product Safety Commission, homes with aluminum branch circuit wiring are up to 55 times more likely to face fire risks than those with copper wiring.
Here are the top reasons to consider professional rewiring:
1. Fire Prevention
The most urgent reason to replace aluminum wiring is to reduce the risk of electrical fires. Loose or overheating connections can ignite insulation and other nearby materials without warning.
2. Improved Electrical Performance
Aluminum wiring can cause flickering lights, warm outlets, and frequent tripped breakers. Replacing it with copper wiring improves your home’s electrical stability and safety.
3. Code Compliance and Insurance
Many insurance companies now refuse coverage or increase premiums for homes with aluminum wiring. Replacing it may be required to meet modern electrical codes and qualify for home insurance.
4. Increased Home Value
If you’re planning to sell your home, outdated wiring can be a red flag for buyers. Upgrading to copper wiring can boost your property value and give potential buyers peace of mind.
Contact Peaden today to schedule an aluminum wiring inspection in Tallahassee or the surrounding areas. Our experienced technicians will help you protect your home and family with expert care and dependable service.