In Florida, aluminum wiring is a major underwriting concern for home insurance carriers due to its higher risk of overheating, loose connections, and electrical fires. Homes built in the late 1960s through the mid-1970s commonly used aluminum branch wiring, and many insurers now consider it a high-risk electrical system. Understanding how aluminum wiring affects home insurance eligibility in Florida can help homeowners prepare for inspections and avoid coverage issues.
Aluminum wiring expands and contracts more than copper when heated, which can cause connections to loosen over time. Loose connections increase electrical resistance, generating heat that may lead to arcing or fire hazards. Because of this, many Florida carriers decline homes with aluminum wiring unless approved safety upgrades have been completed.
During a 4-point inspection, the inspector documents the type of wiring used throughout the home. If aluminum branch wiring is identified, carriers typically require remediation before issuing or renewing a policy. Simply having aluminum wiring—even if no issues are visible—can trigger underwriting concerns.
One of the most common remediation methods is COPALUM crimping, a permanent repair approved by the U.S. Consumer Product Safety Commission. This method bonds copper pigtails to aluminum wiring using a specialized crimping tool. Homes with documented COPALUM repairs are often acceptable to carriers.
Another approved method is the use of AlumiConn connectors. These connectors provide a safer alternative to traditional wire nuts and are widely accepted by Florida insurers when installed by a licensed electrician. Carriers may request proof of installation before approving coverage.
Full rewiring is the most comprehensive solution. Homes that have been fully rewired with copper typically qualify for smoother underwriting and may receive more favorable rates. Carriers may request documentation showing that the rewiring was completed by a licensed contractor.
Homes with unremediated aluminum wiring face the highest risk of being declined. Even if the system appears functional, the long-term safety concerns make it unacceptable for many insurers. At RTC Insurance Advisors, we help homeowners understand what carriers look for and what steps may be needed to secure coverage.
If you want to check whether your electrical system meets current insurance standards or compare policy options, you can request your quote here: