How Do You Inspect for Hidden Lightning Damage?
Last updated October 31, 2026
The short answer
Check Your Electrical System First
Start by examining your home's electrical panel. Look for tripped circuit breakers or blown fuses that won't reset. This is a common sign of a power surge from a nearby strike. Test outlets and light switches throughout the house; if any are dead, warm, or make a buzzing sound, they may be damaged internally. Do not attempt to repair live electrical components yourself.
Inspect all visible wiring, especially in the attic, basement, and near the main service entry. Look for discoloration, melting on wire insulation, or a distinct burnt odor. Check major appliances and electronics for malfunction, as surges can fry internal components without visible signs. If you find any of these issues, turn off power to that circuit and consult an electrician for a thorough evaluation.
Look for Water and Fire Damage
Lightning can puncture roofing, siding, or masonry, creating small entry points for water. After a storm, check your ceilings and walls for new water stains or drips, particularly on the top floor. Go into your attic with a flashlight and look for damp insulation, charred wood, or daylight coming through unexpected holes. These signs often indicate the lightning's path of destruction.
Examine the exterior of your home carefully. Look for shattered bricks, cracked siding, or splintered wood where the strike may have contacted. Pay special attention to the roof ridge, chimney, and any metal flashing. Inside, sniff for a persistent acrid or smoky smell, which can linger in walls after electrical arcing. Any sign of fire or heat damage requires immediate professional attention.
Inspect Plumbing and Gas Lines
The immense electrical charge from lightning can travel through metal pipes, causing pinhole leaks or damaging valves. Check for unexplained moisture around pipe fittings, under sinks, or near your water heater. Listen for hissing sounds near gas lines, which could indicate a compromised fitting. If you smell gas, leave the home immediately and call the utility company from a safe distance.
Inspect your main water shut-off valve and any exposed copper piping for discoloration or unusual warmth. Lightning can also damage well pump systems and pressure tanks. If you notice a sudden drop in water pressure or cloudy water, it could be related. A plumber can perform a pressure test and video inspection to find hidden leaks in the system.
Assess Electronics and Low-Voltage Systems
Surge damage to electronics is not always obvious. A device may power on but have corrupted software or intermittent faults. Check your home's internet equipment, security system, thermostat, and garage door opener for erratic behavior. Landline telephones and cable TV lines can also carry a surge, damaging modems and connected devices even if they were plugged into a surge protector.
Unplug sensitive electronics and inspect their power cords and data ports for scorch marks. Test all ground fault circuit interrupter outlets by pressing their test and reset buttons. If they fail to trip or reset, they are likely damaged. Consider having an electrician evaluate your home's main grounding rod and bonding system, as a proper ground is critical for dissipating lightning energy safely.
- Televisions and computers that turn on but have flickering screens or unusual error messages.
- HVAC systems that won't start, cycle constantly, or blow warm air when set to cool.
- Doorbell transformers or landscape lighting controllers that have stopped working.
- Smoke and carbon monoxide detectors that chirp incessantly or fail a test.
- Sprinkler system control boxes displaying error codes or not activating zones.
- Audio systems or smart home hubs that have reset to factory defaults.
When to Call for a Professional Inspection
If you suspect any lightning damage, the safest step is to contact local water damage pros for a comprehensive assessment. They can use tools like thermal imaging cameras and moisture meters to detect hidden water within walls and ceilings from roof punctures. They can also identify compromised structural materials that are not visible during a casual walk-through, helping to prevent mold growth or future collapse.
The professionals can document all damage thoroughly, which is important if you file an insurance claim. Policies vary, and your insurer decides what is covered. Their report helps create a clear scope of necessary repairs, from electrical and plumbing work to drying and reconstruction. Coordinating these different trades is complex, and a pro's inspection provides a plan for restoring your home safely and completely.
Water damage does not wait
Water keeps spreading into floors and walls, so it is worth acting early. Calls are answered 24/7.
Call Now (405) 565-9833Frequently asked questions
Can lightning damage cause mold?
Yes, if a lightning strike creates a roof leak or damages a pipe, the resulting water intrusion can lead to mold growth inside walls or under floors within 24 to 48 hours. It is a hidden risk that makes a professional moisture inspection critical after any suspected strike.
What should I do immediately after a lightning strike?
Ensure everyone is safe and check for fire or smoke. Avoid touching electrical fixtures or plumbing if you see damage. Turn off the main electrical power if you can do so safely. Then, document any visible damage with photos and contact your insurance company to start the claims process.
How long after a strike can damage appear?
Some damage, like a fried appliance, is immediate. Other problems, like a slow leak from a roof puncture or a weakening electrical connection, may take days or weeks to become noticeable. Ongoing vigilance and a professional inspection can catch these delayed issues before they worsen.