Home insurance covers electrical wiring damage only when the cause is sudden and accidental. Dwelling coverage (Coverage A) is the applicable coverage type when a covered peril, such as a lightning strike, electrical fire or power surge, is the direct cause of the damage. The cause-of-loss determination is central to the outcome: the adjuster's finding on whether damage was sudden and accidental versus gradual determines whether a claim is paid.
The age and type of wiring system most changes the outcome for homeowners. Knob-and-tube and aluminum wiring is treated as a pre-existing conditions by most carriers. Some insurers will not cover homes with these systems at all, regardless of the cause of loss.







