Water Heater Leaking? Shut-Off, Cleanup and Insurance Steps

First: is it a leak or condensation?

Before you panic, check whether the moisture is condensation or a drip from a fitting, which is a smaller problem than a failing tank. A. O. Smith's guidance suggests ruling out condensation before locating the source. Look at the pipe connections on top, the temperature and pressure relief valve and its discharge pipe, and the drain valve, and look under the tank. Water pooling under the tank body itself usually points to a failed tank, which a plumber will typically recommend replacing. Don't guess for long: if water is spreading, shut things off first and diagnose later.

Step 1: Shut off the power or gas

For an electric water heater, switch off its breaker in the electrical panel; if you can't tell which one it is, A. O. Smith suggests turning off the main breaker. For a gas unit, turn the gas shut-off valve on the supply pipe a quarter turn so the handle is perpendicular to the pipe. If you smell gas or are unsure, leave the house right away and call your gas utility from outside. Don't flip switches or light anything.

Step 2: Shut off the water

Close the cold-water inlet valve on the pipe entering the top of the tank by turning it clockwise until it stops. If there is no dedicated valve, shut off the main water valve where the line enters the house. Everyone in the household should know where both are before there is a problem.

Step 3: Contain and drain

Put a bucket under a small leak. To drain the tank, connect a garden hose to the drain valve at the bottom and run it to a floor drain, a sump or outdoors, away from people, pets and plants. Open a hot-water faucet somewhere in the house so air can enter, then open the drain valve. The water inside can be scalding, so wear gloves and eye protection and let the tank cool first if you can (A. O. Smith, Regional Water Providers Consortium). A typical residential tank holds roughly 40 to 50 gallons, according to A. O. Smith, so don't let the hose run across a finished floor. Don't turn the power or gas back on until the tank is refilled, or the heating elements can be damaged.

Step 4: Photograph before you clean up

Take photos and video of the heater (including its label with the model, age and serial number), where the water came from, how far it spread and every damaged item. The Texas Department of Insurance says to take pictures and video before making repairs if you can and not to throw away damaged items until the adjuster has seen them. If a plumber replaces a part or the tank, photograph the failure or ask them to note the cause in writing; your insurer may ask what happened.

Step 5: Remove the water and start drying

Mop or wet-vacuum standing water, lift rugs and wet carpet, and move furniture and belongings to a dry spot. The Texas Department of Insurance says to remove pools of water and start drying right away because mold can start growing within a day after a leak, and the EPA says to dry water-damaged areas and items within 24 to 48 hours. Run fans and a dehumidifier and open doors and windows if the weather allows. Water often wicks into baseboards, drywall, insulation and the subfloor, where a pro with moisture meters can find it. Wet drywall, insulation or carpet padding that can't be dried may need to be removed.

Step 6: Call a plumber and your insurer

A licensed plumber can confirm the cause, repair or replace the unit and tell you whether anything else around the heater needs attention. Call your insurance company or agent promptly. Write down what happened, when you found it and what you did to stop it.

How insurance usually treats a water heater leak

The Washington Office of the Insurance Commissioner says homeowners insurance often covers sudden, accidental water damage, such as a supply line bursting under a sink, but that most policies don't cover gradual leaks that continue over time, which insurers consider a maintenance problem. The Texas Department of Insurance says the same: sudden and accidental damage is generally covered, gradual leaks usually are not. Progressive's consumer guidance says a leaking appliance typically won't be covered if the leak came from normal wear and tear or lack of maintenance, but that the water damage to surrounding floors and cabinets may be covered if the appliance suddenly malfunctions, subject to your limit and deductible. Policies differ, and only your insurer decides.

Prevent the next one

The Washington Office of the Insurance Commissioner suggests checking your water heater for rust, corrosion or moisture, adding a drain pan with a leak detector underneath, and watching your water bill for unexplained spikes. Know where your shut-off valves are, and consider having a plumber inspect a heater that is getting old.

How we can help

ClaimToRepair makes the insurance side easier and gets the repairs done. One licensed local pro can do a free inspection, document the damage with photos and an estimate you can share with your adjuster, and quote the repairs. We don't file, negotiate or adjust claims, and only your insurer decides what is covered. If water is coming in right now, use Get immediate help: the same-day option has a $50 dispatch fee that is refunded if no one arrives the same day and isn't applied to the cost of the job, or you can schedule a visit instead.

Sources

• A. O. Smith: What to Do When Your Hot Water Heater Is Leaking
• Regional Water Providers Consortium: How to access water from your water heater
• Washington Office of the Insurance Commissioner: Leaks, water damage, and mold
• Texas Department of Insurance: When are water damage and mold covered by insurance?
• U.S. EPA: A Brief Guide to Mold, Moisture and Your Home
• Progressive: Does homeowners insurance cover plumbing?