First 10 minutes: stop the water, kill the risk
- Find your main water shut-off valve. Usually in the basement, garage, or crawl space where the water line enters — or outside near the street in warm states. Turn it clockwise until it stops.
- If water is anywhere near lights or outlets, switch off the breaker for that area. Water + live wiring is the one way a leak becomes a 911 call.
- Bulging ceiling? Bucket underneath, small screwdriver hole at the center of the bulge. Controlled drip beats sudden collapse.
- Photograph everything — ceiling, source if visible, damaged belongings. Your insurance claim starts with these photos, not with the repair.
Plumber, roofer, or HVAC? Answer by what’s directly above the stain
This is the question people get stuck on, and the answer is almost always determined by geography, not by the look of the stain. Go stand under it and work out what is directly above that spot.
A bathroom, kitchen, or laundry room is above it → plumber. A supply line, drain, or failed toilet seal. If the stain appears or worsens right after someone showers or runs a wash, that confirms it.
A bedroom or hallway with nothing wet above it → look for a pipe run inside the ceiling. Still a plumber, but tell them it’s a concealed leak so they bring a moisture meter.
The attic or roof is directly above → roofer. The tell: the stain appears or grows during and after rain, and stays quiet in dry weather.
An HVAC unit, air handler, or ductwork is above or nearby → HVAC technician. Air conditioning produces condensate, and a blocked condensate drain line is one of the most common summer ceiling stains. Seasonal pattern: appears in cooling season, dry in winter.
Stain is directly below a bathroom but only appears when it rains → roof or a vent stack flashing, not the bathroom. The room above is a coincidence.
Ring-shaped brown stain, dry to the touch, not growing → an old leak that was already fixed. Worth confirming with a moisture meter before you pay anyone to open the ceiling.
If two of these apply, start with the one matching the timing — rain-linked means roof, use-linked means plumbing, season-linked means HVAC.
Plumber or restoration company? The distinction that saves you money
This is the call most people get wrong. A plumber fixes the source. A restoration company fixes the damage. They are different trades with different equipment:
- Water still coming through → the source is alive → plumber first. Nothing a restoration crew does matters while the pipe still leaks.
- Water stopped (or it was a one-time event like an overflowed tub) → restoration company. They bring moisture meters, industrial dehumidifiers, and air movers; their job is making sure your ceiling cavity doesn’t quietly grow mold for the next month.
If the leak source is the roof rather than plumbing — stains appear after rain, not after water use — you need a roofer, and a tarp before the next storm.
If you rent
Call the landlord’s emergency maintenance line before anyone else (after stopping what water you can). Building plumbing is their cost and their contractor choice. Two rules protect you: report it in writing (text or email, timestamped), and photograph your damaged belongings — the landlord’s policy covers the building, but only a renters policy covers your things.
The insurance call
Call your insurer’s claims line before authorizing repairs beyond emergency mitigation. Insurers can refuse costs they didn’t approve. What’s usually covered: sudden pipe bursts, appliance failures, and the resulting damage. What’s usually not: gradual leaks (“wear and tear”), and outside floodwater — that’s separate flood insurance. Say the words “sudden and accidental” if they apply; that’s the policy language that matters.