Quick answer: Lightning damage is covered by a standard HO-3, including surges caused by a lightning strike that damage the house, appliances and electronics, minus your deductible. Surges from other causes, such as utility grid problems or downed lines, are a grayer area. The ISO HO-3 covers sudden damage from artificially generated electrical current to personal property but excludes damage to the electronic components and circuitry inside appliances and electronics, so many fried-electronics claims from grid surges are limited unless you add equipment breakdown coverage.
A summer thunderstorm rolls through, the lights flicker and suddenly the television, router and garage door opener stop working. Whether insurance pays depends on what caused the surge, what was damaged and which endorsements your policy carries.
This article explains the rules using the Insurance Services Office (ISO) Homeowners 3 Special Form, the model most U.S. insurers adapt. For the overall structure of coverage, see our homeowners insurance guide.
Sources: Insurance Services Office (ISO) Homeowners 3 Special Form (HO 00 03) Coverage C named perils for lightning and artificially generated electrical current and dwelling exclusions for wear and mechanical breakdown; National Fire Protection Association (NFPA) National Electrical Code (NEC) 2020 section 230.67 on surge protection for dwelling services; Insurance Information Institute (Triple-I) lightning and surge guidance; National Weather Service (NWS) lightning safety information. Policies differ by insurer and state. This is general information, not insurance advice. Read your own policy.
Lightning Is a Covered Peril
Lightning is one of the oldest perils in property insurance, and it is covered under every standard homeowners form.
- Dwelling (Coverage A) and other structures (Coverage B). These are open perils in an HO-3, so lightning damage to the house, roof, wiring, built-in systems and detached structures is covered.
- Personal property (Coverage C). Belongings are covered for named perils, and the list starts with fire or lightning.
That includes a direct strike that blows a hole in the roof or starts a fire, and it generally includes a lightning-induced surge that travels through wiring, cable or phone lines into the home and damages appliances and electronics. Because the cause is lightning, the circuitry limitation discussed below does not apply the same way.
Claims depend on evidence. Adjusters may check weather data for lightning strikes near your address on the date of loss, and they may ask an electrician or repair technician to confirm the damage is consistent with a surge.
Surges That Do Not Come From Lightning
Not every surge is caused by lightning. Utility switching, equipment failures on the grid, downed power lines, tree contact with lines and power restoration after an outage can all send spikes of voltage into a home.
For personal property, the ISO HO-3 includes a named peril for sudden and accidental damage from artificially generated electrical current. However, the form specifically excludes loss to tubes, transistors, electronic components or circuitry that is part of appliances, fixtures, computers, home entertainment units or other types of electronic apparatus.
In plain terms:
| Damage | Lightning surge | Non-lightning surge under standard ISO HO-3 |
|---|---|---|
| Fire caused by the surge | Covered | Covered, fire is a separate peril |
| Electronics and appliances with damaged circuit boards | Generally covered | Often excluded by the circuitry limitation |
| Non-electronic items damaged by current | Generally covered | Generally covered |
| Home wiring and electrical panel | Generally covered | Depends on cause; wear and mechanical breakdown exclusions may apply |
| Built-in systems such as HVAC controls | Generally covered | May be limited or excluded |
Insurers often modify the ISO language, and some policies are broader or narrower. The wording in your own Coverage C perils section controls.
Equipment Breakdown Coverage Fills the Gap
Many insurers sell an equipment breakdown endorsement, sometimes called home systems protection. It typically covers sudden mechanical or electrical breakdown of home systems and appliances, including damage from power surges that the base policy excludes.
Common features:
- Covered equipment: HVAC systems, water heaters, electrical panels, major appliances, home electronics and sometimes solar equipment and well pumps.
- Covered causes: electrical arcing, power surges, motor burnout and mechanical breakdown.
- Separate deductible and limit, often lower than the main policy deductible.
- Exclusions for normal wear and tear, cosmetic damage and lack of maintenance.
If you own expensive electronics or rely heavily on home systems, this endorsement is worth pricing. Our explainer on electrical wiring and home insurance discusses how insurers treat panel and wiring failures in more depth.
Can You Claim Against the Utility?
If a surge came from the power company, you may be able to file a claim directly with the utility. Utilities generally pay only when they were negligent, and many have tariffs approved by state regulators that limit their liability for service interruptions and surges caused by storms or events outside their control.
Steps if you suspect the utility:
- Report the outage or surge to the utility and note the time and reference number.
- Ask whether the utility has a claims process for surge damage.
- Gather repair estimates and photos.
- Keep copies of everything you submit.
If your insurer pays a claim, it may pursue the utility through subrogation, which can sometimes recover your deductible.
Replacement Cost, Depreciation and Electronics
Electronics lose value quickly, which matters at claim time. If your policy pays actual cash value for personal property, a five-year-old television may be worth only a fraction of the cost of a new one. Replacement cost coverage pays the cost of a comparable new item, often after you actually replace it.
Our comparison of replacement cost and actual cash value explains how insurers calculate each and why the difference is large for electronics.
The deductible matters too. If several devices are damaged in the same storm, they are usually one occurrence with one deductible. A single fried router may not be worth a claim.
Whole-House Surge Protection
Prevention is cheaper than replacement. Options include:
- Whole-house surge protective devices (SPDs) installed at the electrical panel or meter by a licensed electrician. The 2020 edition of the National Electrical Code added section 230.67, requiring surge protection for services supplying dwelling units in areas that have adopted that code edition.
- Point-of-use surge protectors for computers, televisions and home office equipment. Look for products listed to UL 1449.
- Protecting all paths. Surges can enter through cable, satellite, phone and network lines, not just power lines. Many whole-house solutions include protection for these.
- Unplugging during storms. The National Weather Service recommends unplugging electronics well before a storm arrives rather than during it, and avoiding corded electronics during lightning.
- Lightning protection systems. Air terminals, conductors and grounding designed to standards such as NFPA 780 can direct a strike safely to ground.
Some insurers offer discounts for whole-house surge protection or lightning protection systems. Ask yours.
Lightning Fires and Roof Damage
A direct strike can ignite attic framing or roofing, sometimes hours later. The NWS notes that lightning-caused fires may smolder before becoming visible. After a nearby strike, check the attic for smoke or heat and call the fire department if you suspect fire.
Fire and roof damage from lightning are covered under the dwelling section. Our guide to roof damage coverage explains how insurers handle roof repairs and replacement.
Items Most Often Damaged by Surges
Surge claims tend to involve the same kinds of devices, because they contain sensitive circuit boards and stay plugged in around the clock:
- Televisions, streaming devices and sound systems.
- Computers, monitors, printers and home office equipment.
- Modems, routers and network switches, which can be hit through both power and cable lines.
- Smart thermostats, doorbells, cameras and other connected home devices.
- Garage door openers and gate operators.
- Major appliances with electronic control boards, such as refrigerators, washers, dryers, dishwashers and ranges.
- HVAC control boards and variable-speed motors.
- Pool pumps, well pumps and irrigation controllers.
Make a list of everything that stopped working after the event, even small items, because several modest losses can add up to a meaningful claim once they are combined under one deductible.
Generators, Outages and Power Restoration
Surges sometimes happen when power comes back on after an outage, not during the storm itself. A few precautions can limit damage:
- Turn off or unplug sensitive electronics during an extended outage, then plug them back in gradually after power is stable.
- Leave one light switched on so you know when power returns.
- Use generators safely. A standby generator should be installed with a proper transfer switch by a licensed electrician. Backfeeding power into the home through an outlet is dangerous to utility workers and can damage equipment.
- Keep portable generators outdoors. The U.S. Consumer Product Safety Commission warns that portable generators produce deadly carbon monoxide and should be used only outside, far from windows, doors and vents, never in a garage or other enclosed space.
Damage caused by improper generator connections may be disputed by an insurer, while carbon monoxide risks are a life safety issue that goes beyond insurance.
Smart Homes and Higher Surge Exposure
Modern homes contain far more electronics than homes a generation ago, from appliances with control boards to whole-house networks of connected devices. That increases both the chance of surge damage and the potential cost of a claim.
When reviewing coverage, consider:
- Your personal property limit, which should reflect the replacement cost of electronics and appliances.
- Special limits for certain property types, such as business equipment or portable electronics in some policies.
- Scheduled personal property endorsements for high-value equipment, which can broaden covered causes of loss.
- Equipment breakdown coverage for built-in systems and appliances that the base policy may not fully protect against surges.
A quick annual inventory, even a video walk-through of each room, makes surge claims much easier to document.
How to File a Surge or Lightning Claim
- Make the home safe. If you smell burning, see smoke or have tripped breakers that keep tripping, call the fire department or an electrician.
- Document the timing. Note the date and approximate time of the storm or surge.
- List everything affected, including small devices such as chargers, routers, smart thermostats and garage door openers.
- Get repair opinions. Ask a technician to state in writing whether damage is consistent with a power surge or lightning.
- Keep damaged items until the adjuster tells you otherwise.
- Notify your insurer and ask whether lightning data or a technician report is needed.
Our guide to filing a homeowners insurance claim covers the full process.
Surge Questions for Home-Based Businesses
Business equipment is a special case. A standard HO-3 limits coverage for business property kept at home, often to a few thousand dollars, and electronics used mainly for business may fall under those limits. If you work from home with significant equipment, ask about a home business endorsement or a separate business policy that includes surge and equipment breakdown protection.
Frequently Asked Questions
Does homeowners insurance cover lightning damage?
Yes. Lightning is a covered peril for the dwelling, other structures and personal property under a standard HO-3, subject to your deductible.
Does homeowners insurance cover power surge damage to electronics?
Surge damage from lightning is generally covered. Damage to circuitry from non-lightning surges is often excluded under the standard ISO form unless you add equipment breakdown coverage.
Is a power surge considered an act of God?
Lightning is a natural event, but insurance coverage depends on policy wording, not that label. The cause of the surge and the type of property damaged decide coverage.
Will the power company pay for damaged electronics?
Sometimes, usually only if the utility was negligent. Many utilities limit liability through regulator-approved tariffs.
Do I need a whole-house surge protector if I have power strips?
Point-of-use surge protectors help individual devices, but they do not protect hardwired systems such as HVAC equipment, ranges and well pumps. A whole-house device installed at the panel adds a first layer of protection, and many electricians recommend using both.
Does homeowners insurance cover a fried refrigerator from a surge?
If lightning caused the surge, generally yes. For other surges, the circuitry limitation may apply, and equipment breakdown coverage is the more reliable protection.
The Bottom Line
Lightning damage is a standard covered loss, while surges from other causes can run into the electronic circuitry limitation. Add equipment breakdown coverage if your electronics and appliances matter to you, install whole-house and point-of-use surge protection and document carefully if a storm leaves devices dead.
