Burst pipe: what to do before help arrives

The first five minutes matter more than the brand of coupling the plumber uses later. Stop the water, kill power to wet equipment, then document.

1. Shut the water

The house main is usually on the basement street wall, before or just after the meter. Clockwise is closed on most valves. If the main will not budge, close fixture stops under the sink or behind the toilet and shut the heater supply. A frozen handle is not the moment to snap a valve stem — say that on the call so the plumber brings the right tools.

2. Kill power where water and electricity meet

If water is near a panel, a sump, or a finished basement outlet, treat it as live. Do not wade toward a panel in standing water. If you can reach the breaker dry, shut the wet room.

3. Relieve pressure and catch what you can

Open a faucet at the lowest level after the main is closed so the line drains down instead of through the split. Buckets under a ceiling drip. If plaster is bowing, a small hole at the low point can drain a pocket in a controlled way — better than a sudden collapse. That is a last-resort move, not a hobby.

4. Photograph before anyone opens a wall

Wide shot of the room, close shot of the split, the meter area, and anything already ruined. Insurance and the plumber both need that sequence. Do not throw away the failed section until they see it.

5. Stay off wet plaster and wet roofs of ceilings

The ceiling is not a ladder. The wet insulation in a rim joist is how freeze breaks start. Once the line is stable, the matched plumber decides whether this is a coupling, a section replacement, or a galvanized run that should not be patched again. Start the match from emergency plumbing or the form.

Keep reading

• When to Call an Emergency Plumber in Pittsburgh
• Why Pittsburgh Pipes Freeze — and How to Keep Them From Bursting
• Repair or Replace a Water Heater in a Pittsburgh Home

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