Water Actively Coming Through the Ceiling: Emergency Steps

Do this in the first five minutes

1. Shut off the main water supply to the building.
2. Turn off power at the breaker for that room — water travels along wiring and into light fixtures.
3. Move people, pets, furniture, and electronics out from underneath.
4. If the ceiling is bulging, stand to the side (never directly below) and pierce the lowest point with a screwdriver over a bucket to drain it in a controlled way.
5. Photograph the ceiling, the puddle, and any damaged items before cleanup starts.

Likely causes, most to least common

• A supply line failure in the floor or unit above — steady flow regardless of whether anyone is running water
• An overflowing tub, sink, or washing machine upstairs — flow starts and stops with fixture use
• A failed shower pan or tub surround seal — appears mainly during and right after someone showers
• An air handler condensate line clog — flow tracks with the AC cycling on, very common in South Florida's humidity
• Roof or window flashing failure during a storm — flow tracks with rainfall, not plumbing use

Emergency vs. can-wait

This is always an emergency if water is actively dripping, streaming, or the ceiling is sagging or bulging — call now, do not wait for a callback window. If the area is only faintly damp with no active drip and no sagging, treat it as a wet-spot investigation instead; see the linked page on that pattern.

What a professional checks, in order

• Confirms the main is fully closed and pressure has dropped
• Isolates whether the source is a supply line (pressurized, keeps leaking even with fixtures off) or a drain/condensate line (stops once fixtures and AC are off)
• Uses a moisture meter and, if needed, a small inspection cut to trace the wet path back to its origin
• Checks the unit or floor above for the failed fixture, pan, or fitting before opening more drywall than necessary

What makes it worse

• Standing directly under a bulging ceiling to inspect it — it can collapse without warning
• Leaving power on to the room to keep lights working
• Waiting to see if it "dries up on its own" — saturated drywall and insulation grow mold within 24–48 hours in Florida humidity
• Running the AC to dry the room before the source is confirmed, which can mask a condensate leak

South Florida notes

In condos and townhomes across Miami-Dade and Broward, a ceiling leak often originates in the unit above rather than your own plumbing, which changes who is responsible for the repair even though the water is in your ceiling. Older buildings with aging cast iron or galvanized stacks are more prone to sudden failures at joints.