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Heating · New York

Boiler Leaking Water

Water running loose in a damp basement around an electrical enclosure is worth a call the same day, so phone in and say where the drip is starting.

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When this becomes an emergency

What a pro does

Most leaks start above the boiler, not inside it. In older homes here, the water usually traces to a tired relief valve, a circulator seal that's given up, or a threaded joint that's been quietly corroding in humid basement air for years, and the visit starts by drying everything and watching where the wet returns first. Pressure that keeps rising has its own short list. An expansion tank that's lost its air charge sits at the top of it. Killing power and closing the feed keeps the mess contained until then.

Frequently asked questions

Very often it does. Circulator seals, feed valves, and threaded fittings all sit above the unit, and gravity puts every drip on the same patch of floor.
Damp air keeps foundation walls and pipes cool enough to sweat, so condensation and a genuine leak leave similar-looking puddles until someone dries the area and watches it.
An expansion tank that's waterlogged is the common answer. With nowhere for heated water to expand, pressure climbs until the relief valve opens to protect the system.
Yes. A slow weep will pit metal steadily, and the shoulder months are when a boiler can be opened up without leaving a house cold.

Boiler Leaking Water?

Get connected with a local pro now.

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