# Cloth Wiring Replacement in Minneapolis

> Cloth wiring replacement in Minneapolis and St. Paul: cloth-sheathed cable traced and replaced with grounded circuits, knob and tube too. Request an estimate.

URL: https://northloomminneapolisknobandtube.com/cloth-wiring-replacement/

Found cloth-covered cable in your basement or behind an old fixture? We trace it, replace it with grounded circuits, and take out any knob and tube it was spliced into at the same time.

Two conductors in one cloth jacket: the cable that followed knob and tube.

You’ve spotted flat, fabric-covered cable stapled to a basement joist, or a home inspector wrote “cloth wiring” in the report, and now you want to know whether it has to go. Usually it does, and usually it isn’t alone.

At [Northloom Minneapolis Knob and Tube](https://northloomminneapolisknobandtube.com/), we replace cloth-sheathed wiring in Minneapolis and St. Paul. Cloth-covered cable was the step after knob and tube, and in most older houses you’ll find the two together, often spliced end to end. We trace both before we price anything, so you know which runs are which and where they meet.

## What will you look at on the first visit?

We sort every circuit in your house by what it’s made of, because that list is what your scope and price are built on.

- **At your panel or fuse box**: We identify each circuit as knob and tube, cloth-sheathed cable or modern.
- **Condition**: We check the cloth cable wherever we can see it: at boxes, at fixtures, in the basement and in the attic.
- **Splices**: We find the joints between cloth cable and original knob and tube and note each one.
- **Grounds**: We test your outlets to see whether any working ground exists.
- **Your scope**: You get a written list of the circuits to replace, in the order that makes sense.

## How can I tell cloth cable from knob and tube?

They look different, run differently and fail differently.

Knob and tube runs each conductor on its own, held apart from its partner on porcelain, in open air. Cloth-sheathed cable bundles both conductors inside one woven jacket and runs along the framing with staples and through drilled holes, much like the cable we install today. It went in faster and could be fished through walls, which is why it took over.

The timing explains why so many houses here have both. About 42.8% of Minneapolis housing units were built in 1939 or earlier and another 6.0% in the 1940s, the decade when cloth-sheathed cable was replacing open wiring in new houses and remodels. Your 1920s house may have original knob and tube upstairs and cloth cable from a 1940s kitchen downstairs.

The [guide to knob and tube versus cloth wiring](https://northloomminneapolisknobandtube.com/guide/knob-and-tube-vs-cloth-wiring/) has photos of each and the places each tends to turn up.

## Why does the old insulation crack?

Both systems used rubber insulation on the conductors, and rubber ages. Heat speeds that up, so the worst damage usually sits at the ends of the runs, where you can’t see it.

| Where | What happens |
| --- | --- |
| Inside light fixtures | Decades of heat from bulbs bake the insulation until it flakes off at a touch |
| At boxes and clamps | Insulation cracks where the cable bends and is handled |
| At switches and outlets | Repeated handling and heat at the terminals wear it through |
| In attics | Summer heat dries out exposed runs |

Because cloth cable keeps both conductors in one jacket, cracked insulation can let them touch inside the cable itself. That’s the main reason we replace it instead of leaving it.

## Do I have to replace all of it, or can some be repaired?

That depends on what we find when we trace your circuits.

- **Replace**: Circuits on cloth cable with brittle insulation, splices to knob and tube, or ungrounded outlets you need grounded.
- **Repair**: A damaged section at one box or fixture, as a stopgap until the circuit is replaced.
- **Leave for now**: Cloth cable in good condition on a lightly loaded circuit, written down, while we replace the circuits that matter more first.

A repair keeps the rest of the run in service with no ground and its old splices. It can buy you time, but it isn’t a replacement.

## What if one circuit is knob and tube, cloth cable and new wire all at once?

That’s common. Most houses with cloth cable also have knob and tube, with modern cable on top of both. A single circuit can start as knob and tube at the old fuse block, continue as cloth cable to a later kitchen outlet, and end on modern cable at a bathroom fan.

We follow each circuit through every change of wire, so your scope replaces whole circuits instead of whichever section happens to be visible. The [mixed wiring guide](https://northloomminneapolisknobandtube.com/guide/knob-and-tube-mixed-with-modern-wiring/) explains where those joins tend to hide.

## Where is the cloth cable likely to be in my house?

Cloth-sheathed cable usually marks a change made between the 1930s and the 1950s, so we find it where houses were updated in those decades.

- **Kitchens and baths**: Earlier remodels of the rooms that change most often, sometimes remodeled again since with only the outlets swapped.
- **Basement ceilings**: Runs stapled along joists beside original knob and tube, often feeding outlets added upstairs.
- **Upstairs ceilings**: Ceiling lights and fans added to upstairs rooms, fed from a nearby original circuit in the attic.
- **Old metal boxes**: Shallow boxes with cloth cable clamped at the entry, where bending cracked the insulation.

### What about the wiring inside my old light fixtures?

The wire inside an older light fixture often has the same aging rubber insulation, baked by decades of bulb heat. A new circuit doesn’t fix the fixture’s own wiring. If you want to keep a fixture, a lighting restorer can rewire it before it goes back up; others get replaced. Your scope notes which is which, so a new circuit doesn’t end at an old fixture that crumbles the first time it’s moved.

## Will my insurer or a buyer ask about it?

Some insurance questionnaires ask only about knob and tube; others ask about “older wiring” in general and count cloth cable. Home inspectors often note both. A written record of what each circuit is made of, what we replaced and what remains lets you answer your agent, and lets a buyer’s inspector answer their own question. Our [insurance documentation](https://northloomminneapolisknobandtube.com/insurance-wiring-documentation/) service covers what carriers usually ask to see.

## What will cloth wiring replacement cost?

We price it from your circuit list, the same way we price any rewire. What moves the number is how many circuits there are, how much of the house still runs on cloth cable and knob and tube, how easy your attic and basement are to work from, your plaster and your panel space. Cloth cable often runs through drilled holes, so we can sometimes reuse its routes, which can mean fewer openings than a knob and tube job.

When only some circuits need it, our typical range for partial replacement is $3,000 to $10,000, about $750 to $2,500 a circuit. When most of the house does, our typical range for a whole house is $12,000 to $36,600, before panel work and wall finishing. You get a written estimate from the traced list before anything is booked, and the [cost guide](https://northloomminneapolisknobandtube.com/guide/knob-and-tube-replacement-cost-minneapolis/) breaks the full budget into its parts.

## Which circuits do you replace first?

When your house has both cloth cable and knob and tube, we set priorities instead of treating every circuit the same. Circuits with visibly brittle insulation, splices between the two systems, or loads they were never sized for go first. Circuits feeding bedrooms and living areas, where arc-fault protection matters most, come next. Lightly loaded runs in good condition can wait for a later phase if your budget needs that, written down in the meantime.

> What to have ready
>
> Photos of any cloth-covered cable you’ve seen in the basement or attic, your home inspection report, and anything you know about past kitchen or bath remodels. Questions:
>
> (612) 509-6597
>
> .

## What's included

- Tracing every circuit and sorting it into cloth-sheathed cable, knob and tube or modern wiring
- Finding the splices where cloth cable joins original knob and tube
- New grounded cable for each cloth-sheathed circuit, from the panel to every device
- Every replaced circuit disconnected at its source and tested dead
- Arc-fault and ground-fault protection on the new circuits
- The permit, the rough-in inspection and the final
- A written record of what we replaced and what remains

## Cloth-sheathed cable and knob and tube

| Question | Knob and tube | Cloth-sheathed cable |
| --- | --- | --- |
| How it runs | Two single conductors held apart on porcelain | Two conductors in one cloth jacket, stapled along framing |
| Era | Standard until about 1940 | Common from the 1930s into the 1950s |
| Ground | None | Usually none; some later cable had a small ground |
| Insulation | Rubber under a cloth braid on each wire | Rubber on each wire, cloth outer jacket |
| Typical problem | Buried in insulation, splices, overfusing | Brittle insulation at boxes and fixtures, splices to knob and tube |

## Guides behind this service

- [**Cloth Wiring vs Knob and Tube: What's the Difference?** Both are old, both are usually ungrounded, and both wear cloth on the outside. They run, age and fail differently, and that changes what you do about them.](https://northloomminneapolisknobandtube.com/guide/knob-and-tube-vs-cloth-wiring/)
- [**How Much Does Knob and Tube Replacement Cost in Minneapolis?** Our typical ranges for whole-house and partial jobs, what goes into a Minneapolis price, the permit fees you'll pay, and why two quotes for the same house can be thousands apart.](https://northloomminneapolisknobandtube.com/guide/knob-and-tube-replacement-cost-minneapolis/)
- [**Knob and Tube Wiring in Minneapolis Homes: How It Works and What to Do About It** What's in your walls, why so many Minneapolis houses still have it, how it fails, how insurers, buyers and insulation contractors treat it, and the ways we replace it.](https://northloomminneapolisknobandtube.com/guide/knob-and-tube-wiring/)

## What happens after I call?

### You call us

Tell us what was found and where: an inspection report, an insurer's letter, a stalled insulation job. Photos and the report help.

### We evaluate

We trace your circuits, check the panel and look at the attic and basement runs. You get a written scope that separates electrical work from patching.

### We do the work

We get the permit in place, route cable in stages, and have the rough-in inspected before your walls are closed.

### We close it out

Final inspection, a labeled panel, and the circuit record you will need for an insurer or a sale.

## What this work looks like

Faded brown cloth-jacketed cable stapled along a basement joist

Old metal ceiling box in an attic with a cloth-jacketed cable entering it

## Cloth Wiring Replacement: questions

### Is cloth wiring as risky as knob and tube?

It's risky in a different way. Cloth-sheathed cable usually has no ground, and its rubber insulation dries out and cracks, worst inside light fixtures and at boxes. Its two conductors also sit close together in one jacket, so once the insulation cracks they can touch. We look at its condition and trace where it goes, and that decides what your circuits need.

### Do insurers ask about cloth wiring?

Some do. Many questionnaires lump it in with knob and tube under 'older wiring', while others ask only about knob and tube, so ask your carrier which it means. Either way, a written record of what each circuit is made of and what we replaced answers the question.

### Can cloth wiring be repaired instead of replaced?

A damaged section at one box or fixture can be repaired. The rest of the run is still the same age, still has no ground, and still carries its old splices to original wiring. A repair buys time; replacement puts the whole circuit on grounded cable from end to end.

### Does cloth wiring have a ground?

Most cloth-sheathed cable in Minneapolis houses has two insulated conductors and no ground, though some later cable included a small bare one. We test each outlet to see whether a working ground exists. A three-prong outlet on cloth cable without one has the same problem as one on knob and tube.

### Is replacing cloth wiring the same job as replacing knob and tube?

The method is the same: we trace, replace each circuit end to end with grounded cable and disconnect the old circuit at its source. Cloth cable runs along framing like modern cable, often through drilled holes, so we can sometimes reuse its routes. Most houses with one also have the other, so we usually replace them together.

## Related services

- [**Whole-House Rewiring** Most rooms still on the original wiring? We replace every branch circuit with new grounded cable, the knob and tube and everything spliced into it since, under one permit and its inspections.](https://northloomminneapolisknobandtube.com/whole-house-rewiring/)
- [**Partial Replacement** Earlier owners rewired most of your house, but a few original circuits are still live? We replace just those with grounded cable, leave the rest as it is, and write down exactly where the line falls.](https://northloomminneapolisknobandtube.com/partial-knob-and-tube-replacement/)
- [**Knob and Tube Inspection** Your report says 'knob and tube observed' and you need to know what that really means. We trace every circuit from the fuse box or panel, mark each one live original, dead original or modern, and put the result in writing.](https://northloomminneapolisknobandtube.com/knob-and-tube-inspection/)