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Can Lightning Damage Travel Through Plumbing Pipes?

Last updated October 26, 2026

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The short answer

How Lightning Uses Plumbing

Lightning seeks the easiest path to the ground. Metal pipes, like copper or galvanized steel, conduct electricity very well. When a strike hits nearby, the electrical current can enter your home's plumbing system and travel through the water or the pipe walls themselves.

Plastic pipes, such as PVC or PEX, do not conduct electricity as easily. However, the water inside them can still carry a charge. Even with plastic pipes, the risk is not zero, so caution is wise during a thunderstorm.

Risks Inside Your Home

The main danger is being in contact with water or metal fixtures when lightning hits. Using a sink, shower, bathtub, or even flushing a toilet can put you in the path of the electrical current. The water conducts the charge to your body, which can cause serious injury.

Beyond personal safety, lightning can also damage appliances connected to plumbing, like water heaters or washing machines. The surge can travel through pipes and into these devices, causing electrical failure or fire. This is why unplugging sensitive electronics during storms is a good habit.

  • Avoid showers and baths during thunderstorms
  • Do not wash dishes or use sinks until the storm passes
  • Stay away from metal plumbing fixtures
  • Unplug appliances connected to water lines
  • Keep toilets flushed only after the storm clears
  • Consider surge protectors for electronics

What to Do After a Strike

If lightning strikes your home, check for signs of damage. Look for burn marks near pipes, outlets, or electrical panels. Listen for buzzing sounds or smell burning plastic, which can indicate a problem. If you notice any of these, turn off your main water supply and electricity if it is safe to do so.

After a strike, water damage may occur from burst pipes or damaged appliances. Leaks can lead to wet walls, floors, and belongings. Acting quickly to dry out affected areas helps prevent mold and further structural issues.

When to Call the Pros

If you suspect lightning caused damage to your plumbing or electrical system, a professional inspection is wise. Local water damage pros can assess the extent of the damage and help you understand what repairs are needed. Policies vary, and your insurer decides what is covered, so check your policy to see what documentation you may need.

Water damage from a lightning strike may require cleanup and drying to prevent mold. The pros have the equipment to extract water, dry out structures, and restore your home to a safe condition. For electrical issues, you should also contact an electrician to check wiring and appliances.

  • Inspect for visible water stains or dampness
  • Check for unusual sounds in pipes
  • Look for discoloration on walls or ceilings
  • Test your water heater for proper function
  • Ensure your sump pump works if you have one

Prevention and Preparation

You can reduce the risk of lightning damage by installing a whole-house surge protector, which can help shield your plumbing-connected appliances. Grounding your plumbing system properly is another step, but that is a job for a professional electrician, not a DIY project.

Knowing where your main water shutoff valve is located helps you act quickly if a pipe bursts. If you live in Tulsa, keep that location written down near your panel. Also, consider having an electrician inspect your grounding system, especially if you experience frequent storms.

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Frequently asked questions

Can lightning travel through plastic pipes?

Plastic pipes like PVC are not good conductors, but the water inside them can still carry a charge. The risk is lower than with metal pipes, but you should still avoid using water during a thunderstorm to be safe.

What should I do if lightning strikes my house?

First, check for immediate dangers like fire or sparks. Then, inspect for water leaks or damage. If you see any, shut off your water supply. Contact a professional to assess damage, and document everything for your insurance.

Does lightning damage plumbing pipes themselves?

Yes, a strong strike can melt or crack metal pipes due to the extreme heat. Plastic pipes may also suffer damage if the water inside expands from the heat. Such damage can cause leaks, so a thorough inspection after a strike is important.

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