Why is your insurer suddenly asking about your wiring?
Because an insurer prices the chance of a claim. Knob and tube has no ground, aging insulation and, in many houses, decades of later splices, so underwriters want an answer about it before they write knob and tube insurance in Ohio.
At Conflux Cincinnati Knob and Tube we assess and replace K&T across Cincinnati, Hamilton County and Northern Kentucky, and much of our work starts with an insurer’s letter. This guide covers the decision; our replacement for insurance service covers the work.
Is there an Ohio rule about K&T and insurance?
No. Ohio has no statewide insurance rule on knob and tube, and the Ohio Department of Insurance doesn’t publish a bulletin on it. Each carrier writes its own underwriting rules and can change them.
That means two things for you:
- Answers vary by carrier. One company’s “no” doesn’t predict the next one’s.
- Rules change at renewal. Cincinnati homeowners report being told that something had changed in a carrier’s policy that year, making K&T harder to place.
What do carriers usually want from you?
Their approaches fall into a few patterns, which an Ohio independent insurance agency describes in its published guidance. No regulator sets these, so treat them as one view of the market, not a rule.
| Carrier stance | What your house needs to show |
|---|---|
| Won’t write a home with active K&T, whatever its condition | No active K&T at all |
| Will write if a licensed electrician inspects and states it’s in good condition | A written assessment the carrier accepts |
| Will write if you agree to replace it within a set period | A replacement plan, then proof it was done |
| Asks only whether K&T is present | An accurate answer, active or disconnected |
Why does “active” matter so much?
Because that’s usually the exact question. Old porcelain left in a basement after its circuits were disconnected is a different answer from live wiring, but only if someone proves the disconnection.
A run cut at one end and left connected at the other isn’t proven dead. Our guide to active versus abandoned K&T explains how we trace a run, disconnect it at both ends and record it, and knob and tube removal covers the record a carrier can read.
What are your options?
There’s a short list. Which one fits depends on the carrier’s wording, the deadline and what your house actually has.
| Path | Fits when | Watch for |
|---|---|---|
| Assessment letter only | The carrier accepts a condition statement, and your K&T is intact and correctly fused | An electrician can only state what testing shows; “good condition” isn’t a blanket answer |
| Partial replacement | A few live circuits remain and the carrier asks about active K&T | The letter has to say plainly what remains |
| Whole-house rewire | K&T runs through most rooms, or the carrier wants none at all | The timeline against the carrier’s date |
| Switch carriers | Your carrier declines but others may write the house | Gaps in coverage; a mortgage requires continuous insurance |
What if the deadline is tight?
A carrier’s date and an IBI-inspected job don’t always line up. Ask the carrier in writing whether a signed scope with a start date satisfies the deadline while the work runs. Working to a deadline covers how we sequence the job around it.
What should you ask your agent?
The carrier’s exact wording decides what work satisfies it, so ask before anyone prices anything. Put these to your agent in writing and keep the answers:
- Does the carrier ask about any K&T, or only active K&T?
- Will it accept an electrician’s written assessment, and does it say what the letter must include?
- If replacement is required, by what date, and does a signed scope with a start date count?
- Does disconnected K&T left in place need documenting, and how?
- Will it want to see the IBI permit final, photos or a circuit map?
What about a two-family or rental policy?
A landlord or dwelling policy on a two- or three-family building can ask the same questions as a homeowners policy, sometimes unit by unit. Where units share old circuits, the answer for one unit may depend on wiring in another. Two-family and rental rewiring covers how we sequence work so residents keep power.
Buying a house with K&T? Start early.
You’ll hit the insurance question before closing, because your lender requires a policy in force. Cincinnati homeowners report being under contract on a house with K&T in the attic and basement and having a broker come back with no carrier at all.
- Call an agent as soon as the inspection report names K&T, with the report page in hand.
- Ask for the carrier’s question in its own words, not a summary.
- Have the circuits traced inside your inspection period if you can.
Our before-closing service and our guide to K&T and mortgages cover the rest of a purchase.
What can nobody promise you?
An insurance outcome. No electrical work guarantees that a carrier will write, renew or reprice your policy. A finished, permitted rewire with clear records is the strongest evidence you can offer, but the decision stays with the carrier.
Be wary of anyone who promises a specific insurance result. What an honest scope can promise is accuracy: which circuits were replaced, which were disconnected, and whether any K&T is still live.
What will your insurer actually read?
Paper, not walls. Whatever path you take, a useful packet has a circuit map, a labeled panel directory, a scope letter, a disconnection record with photos and the IBI permit final.
Our guide to paperwork for insurers explains how underwriters read each piece. If a letter has arrived, send it with your address or call (513) 496-2715, and we’ll write the scope against the carrier’s own wording. Our Ohio disclosure guide covers the parallel question when you sell.