Outlets, switches & breakers

Exposed or damaged wiring in the home

Exposed wiring, whether from a broken fixture, chewed cable, or damaged wall, is a shock and fire hazard that needs to be addressed before the area is used again.

Difficulty
Professional only
Time
Immediate action
DIY cost
$0
Pro cost
$150–$400

Symptoms

  • Bare copper or damaged insulation visible on a wire
  • Wire hanging loose from a wall, ceiling, or fixture
  • Exposed wiring found behind an appliance or in an attic/crawlspace

Likely causes

  • CommonDamaged or removed fixture or outlet coverA missing cover plate or broken fixture can leave wiring exposed.
  • PossibleRodent damage to cable insulationMice and rats commonly chew through wire insulation in attics and walls.
  • PossibleOld, deteriorating wire insulationVery old wiring types can crumble or crack with age.
  • PossibleDamage from a renovation or DIY projectNails, drilling, or demolition can nick or expose wiring inside walls.

What to do

  1. Keep people, pets, and any moisture away from the exposed wiring right away.
  2. If you can safely identify the breaker for that area, turn it off.
  3. Do not touch bare wires, even if you believe the power is off.
  4. If you can't identify the correct breaker, turn off the main breaker as a precaution.
  5. Do not attempt to tape, splice, or cover exposed wiring yourself as a permanent fix.
  6. Note the location and, if possible, take a photo for the electrician.
  7. Call a licensed electrician to assess and properly repair the wiring.

When to call a pro

Call a licensed electrician any time you find exposed or damaged wiring; this is not a DIY repair.

Safety

Related guides

Operator provides AI-generated troubleshooting information. It can be wrong. For safety-critical, electrical, gas, structural, medical, automotive safety, or other high-risk problems, consult a qualified professional.