What should a homeowner do first when a water heater is leaking?
Stop the water supply at the cold-water valve on top of the tank if you can reach it safely, and turn off the power or gas at the controls. Do not step into water near the heater. Call the line, and if you smell gas, leave the building and call the gas utility.
Do not turn off a gas heater if you are unsure how, and do not touch a heater that is standing in water. The safe steps depend on the heater's type and the layout of the room, so the crew can walk you through them by phone if you need help.
Move valuables and stored items away from the water if the path is dry and clear. Photograph the water and the tank before anything is moved, because the record is needed for the plumber and any insurer.
Why does a heater leak damage the floor and the wall behind it?
Water from a heater runs along the lowest path in the room, which often means under the flooring, along the base of the wall and into the cavity behind it. The leak can look small on the floor while the wall behind it stays wet for a long time.
A tank that stands on a concrete slab can keep water flowing into the joint between the slab and the wall. A wood floor or carpeted area can hold the water under the surface, where it will not show until the floor starts to cup.
The crew measures the wall behind the heater, the sill plate and the framing, because damp wood at the base of the wall is one of the most common places for rot and mold to start after a leak.
Does the heater need to be replaced after a leak?
A heater that has leaked may need repair or replacement, and that decision belongs to a plumber. The restoration crew reports the condition of the tank, the drain pan and the fittings, but it does not decide whether the heater should be kept or replaced.
A plumber can test the tank and fittings and recommend a repair or a replacement. The homeowner should ask for the findings in writing, and should keep them with the restoration record.
The age of the heater, the source of the leak and whether the tank has failed all matter to that decision. The crew's report gives the plumber the facts from the cellar, which can shorten the visit.
How is a heater leak dried in a basement with stored items?
Stored items near the heater are removed and listed first, then the floor and walls are measured and dried. Cardboard and paper that sat in the water are not kept. Items that can be cleaned and dried are kept in a separate area while the cellar dries.
The air in a basement with a leaking heater can stay humid for a long time, and the equipment has to be set to lower the humidity as well as move the air. The crew checks the readings at the floor, the wall and the framing on each visit.
The drying is recorded room by room, with the readings and the equipment locations. The homeowner can see which surfaces have dried and which are still being monitored.
What moves the cost of heater leak cleanup up or down?
The amount of water, how long it sat, the finishes around the heater, the amount of stored material and the access to the tank all move the cost. The plumbing repair is priced separately. The price is explained and approved before work starts, and no figure is given on this page.
A heater that leaked onto a bare slab with nothing stored nearby is a short cleanup. One that leaked into a finished corner with carpet, paneling and boxes takes more time and more removal.
Access around the heater matters too. A tight utility room or a low ceiling makes the crew's work slower, and the estimate is given after the crew has seen the room.