Knob and Tube (pre-1950s)
Ceramic knobs and tubes carrying cloth-insulated wire with no ground. It was safe when installed but was never meant to be buried in insulation or carry modern loads. Many insurers decline or surcharge these homes. Knob and tube replacement restores grounding and insurability.
Aluminum Branch Wiring (1965–1975)
Aluminum expands and contracts more than copper, loosening at terminals and oxidizing — the cause of countless outlet fires. Options are full aluminum wiring replacement or COPALUM / AlumiConn pigtailing at every connection.
Signs of Trouble
Warm outlet covers, flickering, the smell of hot plastic, two-prong outlets throughout, and breakers that won’t stay reset. An electrical inspection before closing on a home is money well spent.
Whole House Rewiring Without Destroying Walls
Modern rewiring uses fish tapes, attic and crawlspace access and small, patchable openings. Most Alaska homes can be rewired while occupied over one to two weeks. See our whole house rewiring page or call (888) 592-6466.