Nassau & Suffolk County

House Rewiring on Long Island

  • Minimal-opening methods
  • Permit + agency inspection
  • Insurance documentation

Which Long Island homes need it

  • Pre-war homes in older villages and the North Shore (Great Neck, Manhasset, Sea Cliff, Northport, Sayville, Bellport, Setauket): knob-and-tube and cloth-insulated wire turn up behind plaster.
  • Post-war capes and ranches: two-prong outlets on ungrounded circuits are common and limit GFCI/AFCI protection.
  • Mid-1960s to early-1970s builds: some have aluminum branch wiring that needs remediation.

Why it usually comes up

A buyer's home inspection, an insurer's questionnaire, or a renovation where the inspector won't approve new work tied into old circuits. Rewiring during a kitchen or bath remodel, while walls are open, is the cheapest time to do it. Pair it with apanel upgrade if the service is also undersized.

What to expect

  1. Walk-through to trace circuits and check attic and basement access.
  2. Itemized quote: circuits, devices, patching scope, permit and inspection.
  3. Work done in phases so most of the house keeps power each day.
  4. Rough and final inspection by an approved agency; keep the certificate for your insurer.

Where we cover

House Rewiring quotes are available across Nassau and Suffolk. Who licenses the electrician and which inspection agencies are accepted differ by town. Start with yours:

Frequently asked questions

Is knob-and-tube wiring illegal?

Existing knob-and-tube isn't automatically illegal, but it has no ground, its insulation gets brittle with age, and it shouldn't be buried in insulation. Many insurers won't cover it, so it often has to go before a sale or new policy.

Do I have to open every wall?

Experienced electricians fish new cable through attics, basements and closets and make small access holes instead of gutting rooms. Plan for some patching and painting.

What about aluminum wiring?

Some homes built roughly 1965–1973 have aluminum branch wiring. It can be remediated with approved connectors at devices or replaced. A licensed electrician can tell you which makes sense.

Related services

  • Panel & Service Upgrades: 100A to 200A service upgrades and panel replacements, including the permit, the agency inspection and the PSEG Long Island meter cutover.
  • Federal Pacific & Zinsco Panel Replacement: Replacing Federal Pacific Stab-Lok, Zinsco, Challenger, Pushmatic and old fuse boxes, often on a home-sale or insurance-renewal deadline.
  • EV Charger Installation: Level 2 home chargers on a dedicated circuit, with a load check first so a 100-amp house doesn't trip, and help with the PSEG LI charger rebate.
  • Generator Installation: Whole-house standby generators with automatic transfer switches, or a code-compliant inlet and interlock for a portable generator.
  • Electrical Repair & Troubleshooting: Breakers that keep tripping, dead outlets, flickering lights, half the house without power, warm or buzzing devices.
  • Urgent & Emergency Electrical: Burning smells, sparking outlets, storm-damaged service masts and power problems that can't wait for next week.
  • Lighting & Ceiling Fans: Recessed lighting, fixture and fan installs, dimmers, outdoor and landscape lighting.
  • Electrical Safety Inspections: A licensed electrician's evaluation for a home purchase or sale, an insurance carrier's request, or peace of mind in an older house.

Get your free estimate today

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