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⚠️ Knob-and-Tube Removal & Rewiring · Northern NJ

Knob & Tube Wiring Removal in NJ — Insurance-Ready Replacement

If your insurer flagged knob-and-tube wiring— or a buyer's inspector found it — we remove and replace it across Northern NJ. Ungrounded, brittle K&T is a fire and coverage risk. Permit pulled, inspection passed, paperwork handed to your insurer.

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Full-home K&T removal from $8,000 – $20,000
Partial removals quoted lower. Need a whole-home rewire? See our home rewiring service.
NJ Licensed & Insured
Permits Pulled
Insurer Documentation
4.9★ · 124 Reviews
Get a Free Wiring Assessment
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4.9★ · 124 Google Reviews
Same-Week Scheduling
Insurer Paperwork Included
✍️ By Michael Malfettone, Licensed Master Electrician📋 NJ Electrical Contractor License #17130🕐 Last updated June 2026
When K&T Has to Go

8 Signs Your Home Has Knob-and-Tube Wiring

Knob-and-tube has no ground wire and aged insulation that cracks over decades. Insurers flag it and inspectors call it out — these are the signs it's in your home and needs to come out.

🏠Home built before 1950
🏦Insurer flagged it or won't renew your policy
📄Buyer's inspector found K&T during a home sale
🔌Two-prong, ungrounded outlets throughout
🪵Ceramic knobs & tubes visible in the attic or basement
🔥Cloth-insulated wiring that's cracked or brittle
🌡️K&T buried under blown-in attic insulation
💡Flickering lights or frequently failing fixtures

Worried about coverage? Read our guide to knob-and-tube wiring, NJ insurance & replacement cost, or see whether you also have aluminum branch wiring.

Straightforward Pricing

What Knob-and-Tube Removal Costs in NJ

Full-home removal & rewire
$8,000 – $20,000

A complete removal of active knob-and-tube and rewire with new grounded cable — priced by square footage, circuit count, and wall and ceiling access, including the permit and final inspection. This is the right scope when K&T runs through most of the home or an insurer requires all of it gone.

Only need part of it removed?

If only some circuits are still energized, a targeted removal of the active K&T your insurer flagged costs less than a full rewire. If you're upgrading the home anyway, it's often worth pairing the removal with a 200-amp panel upgrade, or doing a full home rewiring in one visit. We quote the smallest scope that makes you safe and satisfies your insurer.

How It Works

Your Knob-and-Tube Removal, Start to Finish

We handle everything — wiring assessment, permit filing, removal and rewiring, and inspection sign-off — and we give you the documentation your insurer needs.

01
Free Wiring Assessment
We inspect your attic, basement, and accessible walls, map what knob-and-tube is still energized, and tell you straight what has to come out versus what can stay.
02
Written Quote & Scope
You get a clear, itemized quote — full rewire or a targeted removal of the active K&T your insurer flagged, whichever fits your situation.
03
Permit Pulled
We file the electrical permit with your municipality and handle all the paperwork.
04
Removed & Rewired
We run new grounded NM cable, transfer circuits, add a ground path, and minimize wall openings — protecting your finishes and keeping the home livable.
05
Inspected & Documented
Municipal inspector signs off and you get the permit record and completion paperwork your insurer needs.
Insurer Asking You to Remove It?

We schedule fast and hand you the permit record and inspection sign-off your insurance company needs.

Schedule a Free Estimate →
Real Customers · Real Results

What Northern NJ Homeowners Say

Our insurer gave us 30 days to remove the knob-and-tube or lose coverage. Malfettone rewired the affected circuits, pulled the permit, and handed us the inspection paperwork the insurance company wanted. Policy saved.

Theresa C. · Montclair

Buyer's inspector found knob-and-tube in our 1920s home mid-sale. They explained exactly what was live versus abandoned, removed only what was needed, and the deal closed on time. No scare tactics.

Rob D. · Jersey City Heights

Whole-house K&T removal and rewire. They protected our plaster walls, kept the mess to a minimum, and finished when they said they would. The new grounded outlets make the whole house feel safer.

Anita S. · Bloomfield
Common Questions

Knob-and-Tube Removal FAQs — NJ

Will my NJ home insurance cover knob-and-tube wiring?+
Usually not anymore. Most New Jersey home insurers will decline new coverage, refuse to renew, or charge 50–100% higher premiums on a home that still has active knob-and-tube wiring, because K&T is ungrounded, brittle with age, and a documented fire risk. Many carriers give you a window — often 30 days, or before closing if the home is under contract — to remove it as a condition of the policy. We provide the permit record and municipal inspection sign-off so you can give your insurer exactly the documentation they ask for.
What is knob-and-tube wiring and why is it dangerous?+
Knob-and-tube (K&T) was the standard wiring method in NJ homes built before about 1950. It runs single insulated conductors through ceramic knobs and tubes, with no ground wire and cloth-and-rubber insulation that dries out and cracks over decades. The risks: it has no equipment ground (so no protection for modern three-prong devices), the aged insulation flakes off and exposes live conductors, and it was never designed for today's loads or for being buried in blown-in insulation, which traps heat. Those factors are why insurers and inspectors flag it.
How much does knob-and-tube removal cost in NJ?+
A full knob-and-tube removal and rewire of a single-family NJ home typically runs $8,000–$20,000, depending on square footage, the number of circuits, wall and ceiling access, and whether a panel upgrade is included. Smaller, partial removals — for example, clearing the active K&T an insurer flagged while leaving abandoned, de-energized runs in place — cost less and we quote them after a walkthrough. You get an itemized written quote before any work begins.
Do I have to remove all the knob-and-tube, or just part of it?+
It depends on your insurer and the condition of the wiring. Some carriers require that all active K&T be removed and replaced; others accept removal of the energized runs while abandoned, fully de-energized sections stay in the walls. We assess what is actually live, document it, and recommend the smallest scope that makes your home safe and satisfies your insurance company — not an automatic whole-house rewire if you don't need one.
Do I need a permit to remove knob-and-tube wiring in NJ?+
Yes — replacing or removing knob-and-tube wiring in New Jersey is permitted electrical work that requires a municipal electrical permit and a final inspection. Malfettone Electric pulls the permit on your behalf, coordinates any PSE&G or JCP&L work, and schedules the inspector. You receive the permit record and completion documentation for your files and your insurer.

Where We Work

Knob-and-Tube Removal Across Northern NJ

Malfettone Electric removes and replaces knob-and-tube wiring across Northern New Jersey — Hudson, Essex, Bergen, and Passaic counties — from our Jersey City and Cedar Grove offices. We pull permits with every local municipality, work cleanly in older homes, and document the removal for your insurer.

Jersey City, NJHoboken, NJBayonne, NJWeehawken, NJUnion City, NJSecaucus, NJKearny, NJHarrison, NJNorth Bergen, NJWest New York, NJMontclair, NJCedar Grove, NJNutley, NJBloomfield, NJClifton, NJPassaic, NJBelleville, NJNewark, NJLyndhurst, NJRutherford, NJHackensack, NJFort Lee, NJParamus, NJEdgewater, NJ
Get Started Today

Knob-and-Tube Flagged? Let's Remove It Safely.

Call or request online. We'll assess your wiring, tell you straight what has to come out, and give you a written quote — same day, no obligation.