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Emergency · Ceiling Water Damage Emergency

Water Stain or Active Leak in Your Ceiling — Who to Call

A ceiling leak can collapse without warning. Contain the drip, find the source, document damage, and get IICRC-certified drying before mold spreads in the ceiling cavity.

(888) 840-6512Mold window: 48 hours

Emergency checklist

  1. Place buckets or tarps under active drips — move furniture and electronics away from the wet area

    A waterlogged ceiling can collapse — do not stand directly under bulging drywall

  2. Determine source: roof leak (after rain), plumbing leak (anytime), or AC condensate line (summer)

    Second-floor leaks may come from bathroom plumbing above

  3. Photograph stains, bubbling paint, sagging areas, and any active dripping before touching anything

    Insurance needs evidence of the damage extent

  4. If ceiling is actively sagging, poke a small hole at the lowest point to drain water into a bucket — reduces collapse risk

    Only if safe — large sagging areas need professional assessment

  5. Call a restoration company for moisture mapping — ceiling cavities hide water that causes mold behind drywall

    Surface drying is not enough — insulation and joists retain moisture

  6. Call a roofer (roof leak) or plumber (pipe leak) to fix the source — restoration handles drying and repair

    Fixing the source without drying the cavity guarantees mold growth

Typical cost range

$800$5,000

Full cost breakdown

Mold growth timeline

Mold Growth Clock

What happens hour by hour after water damage

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elapsed

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or click any marker
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Water Intrusion

lowHour 0

Water enters the structure. Clock starts NOW.

Recommended Action

Shut off water source, move valuables off floor, begin documentation with photos/video.

Next milestone: Absorption Begins at 1 Hour

All Milestones

Ceiling Water Damage Emergency FAQ

Who do I call for a water leak in the ceiling?
Call a restoration company first for active dripping (they extract and dry). For the source: call a roofer if the leak appeared after rain, or a plumber if it's a pipe or bathroom issue above. Restoration coordinates both.
Will my ceiling collapse from a water leak?
Yes — waterlogged drywall and ceiling tiles lose structural integrity. Bulging or sagging ceilings are an immediate safety hazard. Drain carefully and get professional assessment before the ceiling fails.
How much does ceiling water damage repair cost?
Ceiling water damage repair typically costs $500–$5,000 depending on whether drywall replacement, insulation removal, mold treatment, or structural joist repair is needed. Early professional drying reduces total cost significantly.
How to Replace a Main Shutoff Valve | Ask This Old HouseThis Old House walks through locating, operating and replacing the main water shutoff valve — the most important emergency skill for limiting water damage. Read the full guide →