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Northloom Minneapolis Knob and Tube

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My Insurance Company Says to Replace Knob and Tube. Now What?

A letter with a deadline feels urgent, and it is. If you start with the first letter, you usually have time to do this properly.

Last Updated: November 8, 2026

You opened the mail and found a letter telling you to replace the knob and tube, with a date attached. Here’s what to do first: read it for what the carrier wants fixed, by when, and what proof it will take. Then we help you find out what your house actually has and pick the smallest scope that answers the letter. Under Minnesota’s rules, a carrier has to ask twice in writing before it can nonrenew a policy in force, so if you start now you usually have room to do this right.

At Northloom Minneapolis Knob and Tube, we trace, document and replace knob and tube across Minneapolis and St. Paul. This guide walks you through the weeks between the letter and the record you send back.

What is the letter actually asking for?

Wiring letters from insurers don’t all say the same thing, and a few words change what you need to do. Before you call anyone, sit down with the letter and pull out these five things.

Look for Why it matters to you
The condition it names “Knob and tube”, “older wiring”, “fuse panel” and “ungrounded outlets” each point to a different job
What the carrier wants done Replacement, disconnection, documentation or an inspection
The deadline It sets the calendar for tracing, the permit and the work
The proof it will accept A letter, a permit record, photos or an inspection
First or second request It tells you where you stand in the two-notice process

Write the date the letter arrived on the envelope and keep the original. When you reach out to us, send a copy along. We build the evaluation around the exact words in your letter, so the record we hand you answers the question the carrier asked.

How long do I really have?

Longer than the letter may feel like, if you act on the first one. For a homeowners policy already in force, Minnesota’s rules lay out a sequence before a carrier can nonrenew over a condition it wants corrected.

The first written request
It names the condition, explains why the carrier sees it as a greater risk of loss, and gives you the time limits for fixing it.
The second written request
It repeats the request and says the carrier intends to nonrenew if the condition isn’t corrected.
What that gives you
Time. Starting at the first letter leaves room for tracing, a permit and inspections; starting at the second squeezes all of it.

A new application is a different situation. If you’re shopping for a policy rather than renewing one, a carrier can simply decline to write it.

Should I call my agent before I call anyone else?

Yes. The letter may say “replace knob and tube,” but the underwriter’s real requirement can be narrower or broader than those words. You want it in writing before you spend money. Ask your agent:

  1. Is the concern knob and tube that’s still live, or any knob and tube anywhere in the house?
  2. Would a written letter confirming the original wiring is disconnected satisfy it?
  3. Do you need a permit and inspection record?
  4. Is a panel or service change part of the requirement?
  5. Can the deadline move if the work is scheduled and under way?

Those answers set the scope. A homeowner who asks first can find out a disconnection letter is enough; one who guesses can pay for a full rewire the carrier never required, or for a letter the carrier won’t accept.

Why trace the circuits before choosing a scope?

Because you can’t match the job to the requirement until you know which original circuits still carry power. Plenty of Minneapolis houses were rewired in pieces over the decades. Some look untouched and turn out to be half done; others look updated and still run the bedrooms on original wire.

What tracing finds in your house What usually answers the letter
Every original circuit already dead An evaluation letter, and removal of the exposed runs
A few original circuits still live Replacing those circuits, disconnecting the rest, and a written record
Original circuits feeding most of the house A whole-house rewire, or a first phase that covers the live circuits now
A fuse box named in the letter A breaker panel added to the scope

Our knob and tube inspection produces the circuit list, and our insurance documentation service turns it into the letter your carrier reads. Our typical range for a knob and tube evaluation is $150 to $500, depending on the size of the house and how easy the attic and basement are to reach.

Can the work fit before my deadline?

Usually, once the scope is settled. The steps run in the same order on every job, and knowing them helps you see where the time goes.

Evaluation
One visit for most single-family houses.
Scope and price
A written scope listing the circuits, the wall openings and any panel work.
Permit
The permit is filed at or before the start of work: with the state in Minneapolis, with the city in St. Paul. We get it in place as part of the job.
Work and rough-in inspection
The new wiring is inspected before anything covers it.
Final inspection and record
The final inspection, then the written record for your carrier.

The guide to how long a rewire takes explains what stretches or shortens each stage. If your date is close, tell us when you get in touch, and we’ll plan the order of work around it.

What if I can’t make the date?

Sometimes the full requirement won’t fit in the time you have. That doesn’t have to mean losing the policy. Raise these with your agent:

  • A partial scope that takes every live original circuit out of service now, with the rest of the house planned for later
  • A written scope and a start date on the calendar, sent with a request for more time
  • Quotes from other carriers that may accept the house as it is, or with documentation
  • The Minnesota FAIR plan, which insures property the regular market declines and can require listed improvements first

Progress you can show on paper carries weight. A carrier looking at a traced circuit list and a scheduled start is looking at a homeowner who is handling it.

Who pays for the rewire?

You do, in most cases. Insurance generally doesn’t pay to replace wiring that still works; carriers treat it as an owner’s cost even when they’re the ones asking. No program pays for knob and tube replacement on its own, but once your attic wiring is settled, Xcel Energy’s insulation rebate can follow.

Our typical range for a partial replacement is $3,000 to $10,000, about $750 to $2,500 a circuit. For a whole house, our typical range is $12,000 to $36,600, about $8 to $20 per square foot, before panel work and wall finishing. The cost guide breaks those numbers down, and the quote comparison guide helps you line up prices on the same work.

What do I send the carrier when the work is done?

Send exactly what the carrier asked for, in the form it asked for, through your agent. Anything else invites another letter.

If your carrier asked for Send
Confirmation that no knob and tube is live A letter stating which original circuits were replaced or disconnected, and how that was confirmed
Proof of replacement The record of replaced circuits, with the permit number and the final inspection date
An inspection Set it up through the carrier, with your record ready
A panel or service change The permit and final inspection for the service work

Where do homeowners lose time?

Waiting for the second letter
The clock starts with the first request. Starting then leaves room for the permit and both inspections.
Guessing the requirement
A full rewire where a letter would have done, or a letter where the carrier wanted replacement.
Skipping the permit
Work without a permit can’t be documented the way carriers want, and starting before the permit request is filed adds a state investigation fee.
Vague answers
“Most of it was updated” invites another letter. A circuit list ends the conversation.

What if my letter says fuse panel or ungrounded outlets instead?

The steps are the same. Ask what the underwriter needs, get the circuits traced so you know what your house actually has, and choose the scope that answers it. If your branch circuits are modern, a fuse panel may mean a panel upgrade alone; our typical range for a panel and service upgrade is $2,500 to $7,000. Ungrounded outlets may need only labeled GFCI protection, or a new grounded circuit where a piece of equipment calls for one.

What should I keep afterward?

Everything. Once the work is done and the carrier has what it asked for, file the letter, the permit record and the circuit list with your house papers. The next buyer’s insurer will ask the same question, and you’ll answer it in one email instead of starting over. If you’d like to talk through your letter: (612) 509-6597.

Questions about this guide

How much time does a Minnesota insurer have to give me?

Your carrier has to ask in writing twice before it can nonrenew over a known condition, and the first request sets the time limits. The rules don't fix one number of days for every case, so read the deadline in your letter closely and ask your agent if it isn't clear.

Can I ask my insurer for more time to replace knob and tube?

Yes, and showing progress helps your case. A traced evaluation, a written scope and a start date on the calendar show the carrier the condition is being dealt with. The extension is the carrier's call, so ask through your agent, in writing, and keep copies.

What if I can't afford to replace all of it before the deadline?

Ask your agent whether the concern is live wiring. If it is, replacing the original circuits that still carry power and disconnecting the rest may answer it for far less than a full rewire, and the rest of the house can follow later. If the carrier wants more than that, other carriers or the Minnesota FAIR plan are worth raising with an agent.

Want this answered for your house?

Tracing the circuits shows what is still live and what the work would involve.

Get an Estimate

Get an estimate for your house

Send what turned up: the inspection page, an insurer's letter or an insulation bid. We'll take it from there.

(612) 509-6597

Monday to Friday, 8 AM to 6 PM; Saturday and Sunday, 9 AM to 2 PM. Outside these hours, emergency calls only.

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