Old Aluminum Wiring Replacement

Solid aluminum branch-circuit wiring was widely installed in residential properties between 1965 and 1976 as a lower-cost alternative to copper. Decades of field data reveal that single-strand aluminum conductors deteriorate at terminal screws, junction boxes, and outlets. Thermal expansion cycles loosen these connections continuously, generating hazardous electrical resistance and intense localized heat that often goes undetected behind drywalls.

The Inherent Mechanical Weaknesses of Single-Strand Aluminum

Aluminum possesses distinct metallurgical traits that make it unstable for fine branch wiring. When current flows through conductors, aluminum expands nearly thirty percent more than copper. This expansion exerts mechanical pressure against standard steel screws in outlets. Once current stops, the metal cools and contracts, leaving microscopic gaps where galvanic corrosion and high-resistance aluminum oxide rapidly accumulate.

Independent safety research demonstrates that residential dwellings containing vintage aluminum branch wiring are approximately 55 times more susceptible to fire conditions at termination points than those equipped with pure copper circuits.

Our Certified Complete Rewiring Methodology

We offer homeowners comprehensive remediation options designed to permanently remove fire hazards and ensure seamless compliance with modern mortgage and property insurance underwriting criteria:

• Complete decommissioning and removal of aged single-strand aluminum branch lines
• Installation of high-purity oxygen-free copper conductors with dedicated low-resistance grounding paths
• Integration of modern dual RCD and AFDD arc-fault detection circuit breakers

Replacing aged conductors also allows for the redistribution of heavy modern appliance loads across dedicated new circuits. Our technicians minimize wall cutting by using specialized conduit fishing techniques, completing full residential upgrades efficiently with official compliance certification issued upon municipal inspection.