Does Homeowners Insurance Cover Old Wiring?
Not if it's just old. Insurers often require an update first, or will exclude damage the wiring causes.
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What insurers look for
An underwriter usually asks the age and type of wiring before issuing a policy. Knob-and-tube or aluminum wiring often triggers a required update before coverage starts, or an exclusion for damage it causes. Copper wiring rarely raises a flag.
Fire from old wiring
If old wiring starts a fire, many policies still pay for the fire damage itself, since that's a covered peril. What's usually excluded is replacing the wiring that caused it. Check your declarations page for any wiring exclusion before closing.
Your inspection report
The home inspection you get before closing will note the wiring type and condition. If it flags knob-and-tube or aluminum wiring, expect the insurer to ask about it directly, or to require proof of an electrician's update before binding coverage.
Your closing timeline
If the wiring needs updating before a policy can be issued, that takes time an electrician has to schedule. Start the insurance process as soon as the inspection comes back, not the week before closing, so a wiring issue doesn't delay your binder.
Don't let wiring hold up closing
One insurer may require an update or add an exclusion for the same wiring another will cover outright. Comparing quotes now shows which insurers will issue a binder without delay.
What if the seller won't fix the wiring before closing
Sometimes the inspection flags knob-and-tube or aluminum wiring and the seller isn't willing to pay for an update, or there isn't time before closing to get an electrician out. That doesn't necessarily mean the sale falls apart. It means the coverage question shifts from the seller's problem to yours, and it's worth knowing the options before you're negotiating under a deadline.
One path is buying the house with a policy that excludes damage caused by the wiring itself, while still covering fire, wind, theft and the other perils listed on the declarations page. Some insurers will issue this kind of policy and let you update the wiring after closing, then remove the exclusion once an electrician's work is done and documented. That keeps the closing date intact but leaves a gap in coverage until the rewiring happens.
Another path is negotiating a credit at closing instead of asking the seller to do the work. You use the credit to pay the electrician yourself, on your own schedule, and the insurer sees the update happen under your ownership rather than the seller's. This is often simpler than coordinating a contractor through someone who's about to move out.
Either way, get the actual cost from an electrician before you negotiate anything. Knob-and-tube removal in a small house costs far less than rewiring a large one, and sellers respond differently to a specific number than to a general request. Ask the electrician for a written estimate, bring it to the insurer so they know what's planned, and bring it to the seller if you're negotiating a credit. The wiring type alone doesn't tell you the cost. The scope of the house does.
What if the inspection turns up something between old and updated
Not every house is clearly one or the other. An inspector might find that part of the house was rewired at some point, maybe the kitchen or a few rooms, while the rest still runs on the original knob-and-tube or aluminum circuits. This is common in older houses renovated in pieces over the decades rather than all at once. An underwriter looking at a mixed system doesn't treat it the same as a house that's fully updated, even if most of the square footage is newer.
What usually happens is the insurer asks what percentage of the house has been rewired and by whom. A partial update done by a licensed electrician with a permit carries more weight than work someone did without one, even if the wiring itself looks the same. If records of the permit or the electrician's invoice exist, having them ready speeds up the underwriting decision. Without them, the insurer may treat the whole house as unupdated, since there's no way to confirm which parts were actually touched.
A related situation is wiring that was updated years ago but not to current code. This is harder to spot without someone who knows what they're looking at. It's part of why some insurers send their own inspector after binding coverage, separate from the buyer's inspection. If that inspection turns up something the buyer's inspector missed, the insurer can still require an update or add an exclusion after the policy is already in place. Reading the fine print on any post-binding inspection clause avoids a surprise a few months into owning the house.
If the wiring situation is genuinely unclear, an electrician's assessment before closing settles it one way or the other. It costs something upfront. In exchange it turns a vague inspection note into a specific answer. How much of the house is affected, what it would take to bring it current, and what that means for the insurer's decision all become clear instead of guessed at. That's worth having before negotiating with the seller or signing a policy, since guessing which category the wiring falls into tends to cost more time than finding out directly.
Before you call an insurer
Find the wiring type on your inspection report. If it says knob-and-tube or aluminum, get an electrician's estimate now so you have a real number before an underwriter asks for one.
