Is 20 Year Old Wiring Safe for Home Insurance?
Age alone isn't the problem. Insurers worry about the wiring type, like aluminum or knob-and-tube, which may need inspection.
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What decides this is the wiring type, not the 20 years itself. Copper wiring from two decades ago raises no flags. Aluminum branch wiring or any remaining knob-and-tube does, because both carry documented fire risk insurers underwrite against. An inspection by a licensed electrician, showing the panel and wiring type, is usually what reinstates coverage or opens up other insurers to you. If a report calls for updates, like replacing cloth-insulated runs or adding a breaker panel, finishing that work before you reapply matters more than the wiring's age on paper.
Not every insurer treats your wiring the same way
One company's non-renewal over aluminum or knob-and-tube wiring doesn't mean every insurer sees it that way. Comparing quotes shows which ones still cover your house, and at what price.
What an electrician actually checks
An inspection isn't just someone glancing at the breaker panel. A licensed electrician traces the circuits to see what's actually behind the walls, since a house can have copper in some rooms and aluminum or knob-and-tube left over in others from a partial rewire. The panel itself gets checked too, for its amperage, its age, and whether it's a brand with a known failure history. Insurers that ask for this report want all of it, not just a photo of the panel.
If the report flags something, the fix depends on what's there. Aluminum wiring is sometimes addressed with copper pigtails at the outlets and switches rather than a full rewire, which costs less and may satisfy an insurer. Knob-and-tube almost always means removal where it's still live, since the insulation degrades and the wiring wasn't built for modern loads. A federal pacific or zinsco panel, if that's what's installed, usually gets replaced outright rather than repaired.
None of this has to happen before you start getting quotes. Some insurers will quote with the understanding that an inspection or repair happens within a set window after the policy starts, others want the report in hand first. Which approach an insurer takes is worth asking about directly, since it affects how fast you can get coverage in place before your current policy ends.
Keep the inspection report and any receipts for electrical work. If the wiring comes up again at a future renewal, having documentation of what was replaced and when saves you from re-explaining the house's history to a new insurer or a new underwriter at the same one.
Does homeowners insurance cost more with older wiring, even after it passes inspection
A clean inspection report usually removes the non-renewal problem, but it doesn't always erase the wiring's history from how an insurer prices the policy. Some insurers treat a passed inspection as proof the risk is gone and price the house the same as any other. Others still note that the home had aluminum or knob-and-tube at some point and apply a small surcharge, the same way a house with an older roof might cost more to insure even after a new roof goes on.
Copper pigtails on aluminum wiring tend to satisfy insurers without much pricing impact, since it's a recognized fix with a long track record. A full rewire, whether from aluminum or knob-and-tube, often resets how the house is underwritten entirely, since the insurer is now looking at new wiring with a long expected life rather than a repair layered on top of old wiring. That's part of why some homeowners find the rewire pays for itself over several years of lower premiums, on top of the fire risk it removes.
Where the house sits matters alongside the wiring itself. An insurer that still writes policies in an area with aluminum wiring common in homes from the 1960s and 70s may have a standard process for it, with a set surcharge or a routine request for the pigtail work. An insurer newer to the area, or one that rarely sees that wiring type, might decline it outright rather than price around it. This is part of why the same wiring gets a different answer from different companies, not just a different price.
Ask directly whether the quote reflects the wiring as inspected and repaired, or as it was before the work. Some quotes get generated off the application before any inspection report is attached, and the number changes once the insurer has the report in hand. Getting the final price confirmed after the inspection is submitted avoids a surprise at binding, especially when a lender's deadline is close and there isn't much room to shop again if the number moves.
Before you reapply
Check your declarations page or non-renewal letter for the wiring reason given. Have an electrician's inspection report ready, since insurers price aluminum, knob-and-tube, and repaired wiring differently once they see it in writing.
