Frozen or burst pipe: check it step by step

Safety look

Before any reading: is anything like this on site?

A gas smell at a heater, an appliance, gas piping or anywhere on site
Water or meltwater reaching a panel, an outlet or powered equipment, standing around a powered heater or pump, or a thaw that would drip onto any of them
Sewage on surfaces or electrical parts, or something toxic or caustic that may be in the drinking water
Water running that cannot be stopped at a fixture stop, a branch valve or the main
A ceiling, floor or roof edge sagging, bulging or holding water or ice, or framing that looks damaged near the split or the wet area
A relief valve or its pipe capped or plugged on a working heater or boiler
A carbon monoxide alarm, or exhaust spilling or soot at a gas or oil appliance near the frozen or split line
A torch or other open flame being used to thaw a pipe, a welding machine hooked to the piping to thaw it, or someone about to do either
A frozen, split or bulging pipe whose shutoff upstream cannot be found or will not close

Taken as what you could see, not as a finding that none of these are present.

What decides which causes can apply

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A few of these troubles belong to a different problem when nothing points at the cold, so this comes before the causes.

Nothing on this page is saved anywhere: the answers live in its address. General guidance for a qualified person, not a finding about any home. The person on site decides.

Frozen or burst pipe.

Safety look

What decides which causes can apply