Frozen Pipes, Ice Dams, and Power Outages: Is Your Home Ready for Winter?

Winter can put your home to the test. A pipe can freeze and burst, a roof can develop an ice dam, or an outage can leave you without heat for hours. The right winter home maintenance can lower the chance of damage, and a review of your homeowners policy can help you understand what protection you have if something goes wrong.

Coverage varies by insurer, policy, and circumstances. Use this guide as a starting point, then check your own policy or ask your insurance professional about specific limits, exclusions, and requirements.

Frozen pipes: prevent a burst before temperatures drop

Pipes in unheated or poorly insulated spaces are especially vulnerable to freezing. When water freezes, it expands and can cause a pipe to crack. The leak may not become obvious until the ice thaws, when water can spread through walls, ceilings, floors, and belongings.

Before freezing weather:

• Insulate exposed pipes in basements, crawl spaces, garages, and other cold areas.

• Seal drafts around windows, doors, and openings where pipes enter the home.

• Check that your heating system is working properly and keep the home warm during cold spells.

• Find your main water shutoff valve so you can act quickly if a pipe breaks.

• Consider installing water-leak sensors near vulnerable plumbing or appliances.

During extreme cold, open cabinet doors under sinks on exterior walls to let warmer air circulate. If a faucet is at risk, a slow drip may help keep water moving. If you’ll be away for an extended period, arrange for someone to check the home regularly. Ask a qualified plumber whether shutting off the water or draining parts of your plumbing system makes sense for your home.

If a pipe bursts, shut off the water if you can do so safely and contact a plumber. Keep clear of standing water near electrical equipment. Notify your insurer promptly and take reasonable steps to prevent further damage, provided it is safe.

A standard homeowners policy may cover sudden and accidental water damage from a frozen or burst pipe. But coverage can depend on what happened and whether you took reasonable steps to protect the home. Some policies set conditions for homes left unattended in cold weather, such as maintaining heat, shutting off the water, or draining the plumbing. A sudden burst is different from a gradual leak that goes unnoticed over time; gradual damage and maintenance-related problems may not be covered. Read your policy’s terms rather than assuming every water loss is treated the same way.

Ice dams: keep roof drainage clear

An ice dam forms when melting snow refreezes near the edge of a roof. The ridge of ice can prevent water from draining properly. Water may then back up beneath roofing materials and leak into the attic or living space.

Good winter home maintenance starts before snow accumulates:

• Clear leaves and debris from gutters and downspouts in fall.

• Make sure downspouts direct water away from the foundation.

• Seal air leaks between living areas and the attic.

• Check that attic insulation and ventilation are in good condition.

• Ask a qualified roofing or insulation professional to assess recurring ice-dam problems.

Avoid climbing onto an icy roof or trying to chip away ice yourself. A professional can recommend safe removal and longer-term fixes.

Homeowners policies often cover certain sudden damage from the weight of ice or snow, and resulting interior damage from an ice dam may be covered under some policies. But coverage is not automatic. A policy’s exclusions, maintenance requirements, roof condition, and the cause of the damage all matter. If water has been entering gradually or a known issue has been left unaddressed, the claim may be treated differently than sudden damage from a winter event.

Power outages: prepare for cold, food loss, and safety risks

A winter outage can interrupt heat, lighting, refrigeration, and medical equipment. Keep an emergency kit where you can reach it in the dark. Include flashlights, extra batteries, warm clothing and blankets, drinking water, shelf-stable food, essential medications, and charged power banks. If someone in your household relies on powered medical equipment, make a backup plan with their healthcare provider.

Keep refrigerator and freezer doors closed during an outage. Unplug or protect sensitive electronics from possible power surges when electricity returns. Never use an oven or gas stove to heat your home.

If you use a portable generator, operate it outdoors, at least 20 feet from doors, windows, and vents, with exhaust directed away from the home. Never run one in an attached garage, even with the door open. Connect appliances directly to the generator or use an outdoor-rated extension cord. Never plug a generator into a wall outlet to power your home; have a qualified electrician install an appropriate transfer switch. Let the generator cool before refueling and keep working carbon monoxide alarms in the home. Follow the NFPA’s generator safety guidance.

A homeowners policy may cover some losses that happen during an outage, but the details matter. For example, food spoilage may be subject to policy limits or require an endorsement. Damage caused by a covered event may be treated differently from the cost of replacing food or losses caused solely by a utility interruption. Check your policy for power-interruption provisions, deductibles, and special limits before winter weather arrives.

Important: homeowners insurance does not cover floods

Standard homeowners policies do NOT cover floods. Flood damage from surface water or storm surge requires separate flood insurance, available through the National Flood Insurance Program (NFIP) or private insurers. That includes water that flows over the ground and enters your home; do not assume your homeowners policy will pay for it.

Flood insurance is separate from coverage for certain water damage caused by a burst pipe or water entering through a damaged roof. The source of the water and the policy language matter. Learn more from FEMA’s flood insurance information. NFIP policies typically have a waiting period before coverage takes effect, so consider your options well before a storm threatens.

Winter readiness checklist

Use this quick checklist before the next deep freeze:

• Insulate exposed pipes and seal nearby drafts.

• Test your heating system and keep the home warm during cold spells.

• Locate the main water shutoff valve.

• Clear gutters and downspouts; check that water drains away from the home.

• Check attic insulation and ventilation, or arrange a professional assessment.

• Prepare flashlights, batteries, blankets, water, food, and necessary medications.

• Test smoke and carbon monoxide alarms.

• Review safe generator placement and operation before an outage.

• Check your policy for frozen-pipe conditions, water-damage limits, power-outage losses, and deductibles.

• Ask whether separate flood coverage is appropriate for your property.

Your home insurance coverage should reflect your property, location, and concerns, not assumptions about what a standard policy includes. A review before winter can help clarify where you have protection, where exclusions or limits may apply, and whether additional coverage is worth considering.