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What Is the First Thing to Check After Lightning Hits Your Home?

Last updated October 26, 2026

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The short answer

Check for Fire or Smoke

The first thing to check after lightning hits your home is fire or smoke. Lightning can travel through wiring and ignite materials inside walls or the attic. Walk through each room, look for visible flames, and sniff for a burning odor, especially near outlets, breaker panels, and light fixtures.

If you spot any sign of fire, get everyone out of the house immediately and call 911. Do not try to put out a large fire yourself. Even a small flame can spread quickly through hidden spaces. Your safety comes first, and emergency responders can handle the situation.

  • Check the attic and crawl spaces for smoke or flames.
  • Look at electrical outlets and wall switches for scorch marks.
  • Smell for a burning plastic or wire odor.
  • Inspect the exterior of your home for charred spots.
  • Listen for crackling sounds that might indicate electrical arcing.

Inspect Your Electrical System

After you confirm there is no immediate fire, the next step is to inspect your electrical system. Lightning can cause power surges that damage wiring, breakers, and appliances. Turn off the main breaker if it is safe to do so, then check for tripped breakers, flickering lights, or burning smells from outlets.

You should also test your smoke detectors and carbon monoxide detectors to make sure they still work. If any wiring appears damaged or you notice a persistent burning smell, call an electrician to inspect the system. Do not attempt to repair electrical damage yourself, as hidden issues can pose a serious shock or fire hazard.

  • Turn off the main power if you can do so safely.
  • Check the breaker panel for tripped breakers or scorch marks.
  • Test all smoke and carbon monoxide detectors.
  • Look for frayed wires or melted insulation near outlets.
  • Unplug sensitive electronics until the system is checked.

Look for Water Damage

Lightning can also cause structural damage that leads to water intrusion. A strike can loosen roof shingles, crack chimneys, or create gaps in siding. If rain follows the strike, water may seep into your home. Check your attic, ceilings, and walls for wet spots, stains, or dripping water.

Water damage from lightning can be just as destructive as the electrical damage. Look for discolored patches on drywall, peeling paint, or warped flooring. If you find any moisture, the source may be a damaged roof or a compromised seal. Acting quickly can help prevent mold and further deterioration.

  • Inspect the roof for missing or displaced shingles.
  • Check ceilings and walls for water stains or bulges.
  • Feel the attic insulation for dampness.
  • Look for puddles near windows, doors, or vents.
  • Examine the foundation for cracks that might let water in.

Check Your Plumbing and Gas Lines

Lightning can also affect metal pipes and gas lines. It can cause pinhole leaks in plumbing or damage gas valves. Check your water meter for unusual readings, look for wet spots on floors or walls, and listen for the hiss of a gas leak. If you suspect a gas leak, leave the house and call the gas company from outside.

For water lines, turn off the main shutoff valve if you see a leak, and then contact a plumber to assess the damage. Gas leaks are a serious emergency, so do not delay. Your safety depends on catching these issues early, so a thorough check is worth the time.

Document the Damage and Contact Pros

Once you have checked for immediate hazards, take photos of any damage you find. Documenting the condition of your home helps when you file a claim with your insurance company. Policies vary, and your insurer decides what is covered. Keep records of any repairs you make and save receipts for temporary fixes, like tarping a roof.

For water damage that has already occurred, such as wet drywall or flooring, you may need help from local water damage pros. They can assess the extent of the damage and begin drying out the affected areas. If you live in Port St. Lucie, having a plan for who to call can save time after a storm.

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Frequently asked questions

What should I do if I smell gas after a lightning strike?

If you smell gas, leave your home immediately and go to a safe distance. Do not flip any switches or use a phone. Call the gas company from outside and wait for them to give you the all-clear. Do not re-enter the house until they say it is safe.

Can lightning cause water damage even if it doesn't rain?

Yes, lightning can crack pipes or damage seals, causing leaks even without rain. The electrical surge can also damage appliances that use water, like washing machines, leading to overflow. Check for water stains and listen for running water after a strike.

How long should I wait before turning my power back on?

Wait until an electrician has inspected your system if you see any damage or if your breakers tripped. If everything looks normal, you can turn the main breaker back on after a few minutes. But if you are unsure, have a professional check it first.

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