AC leak water damage in Selden, NY usually starts with a small, steady drip rather than a burst. Air conditioners pull moisture out of the air, and when the condensate drain or drain pan fails, that water lands in a closet, attic or ceiling instead of outside.
AC leak water damage is the wetting of drywall, insulation, framing and flooring by condensate or coil meltwater that escaped from an air handler, evaporator coil or drain line. We dry what got wet, and an HVAC technician fixes the unit.
Where AC water comes from
Clogged condensate line
Algae and sludge block the drain, the pan fills and water runs over the edge into the closet or ceiling below.
Rusted or cracked drain pan
The secondary pan under an indoor unit corrodes over time and drips through the floor beneath it.
Frozen evaporator coil
Low airflow from a dirty filter ices the coil, and the ice melts faster than the pan can handle.
Loose or split drain joint
A cracked PVC fitting leaks only when the unit runs, so the stain appears and dries in a cycle.
Signs you can see, smell and hear
- A brown or yellow ring on a ceiling near a hallway closet, attic hatch or upper-floor unit
- A damp, musty smell around the air handler that gets stronger when the system runs
- Water in the drain pan, or a pan that never seems to dry
- Rust streaks on the unit, or stained insulation around the ductwork
- Paint that bubbles or drywall tape that lifts near a supply vent
A drip that is small and steady can soak insulation and a top plate long before anything shows below. If you find a stain, the wet area is almost always larger than the stain.
What happens on a visit
- We confirm the water is clean condensate and note where it entered, so you can brief your HVAC technician.
- A moisture meter and thermal imaging camera map wet drywall, insulation and framing.
- Wet insulation is removed, since it holds water against the structure.
- Air movers and LGR dehumidifiers run until readings match dry reference spots.
- You receive a written scope with photos and readings for your records.
Who to call for what
| Problem | Call | Why |
|---|---|---|
| Unit is running but dripping | HVAC technician | The drain, pan or coil has to be fixed or the leak returns |
| Wet ceiling, insulation or flooring | Us | Drying and removal of wet materials is our work |
| Cracked drain pipe after the unit | Plumber or HVAC technician | The line needs repair, and we are not a plumbing company |
| Visible mold after a long drip | Us, for containment and removal | See our mold page, and ask for the state licence |
Ceilings, closets and the older house
Suburban building in Selden took off in the early 1950s, and an air handler in an older house may sit in a hall closet, attic or finished basement directly above or beside drywall. In that spot a slow drip lands in the ceiling cavity first. A pre-1980 house may also have paint or ceiling texture that needs testing before demolition, so ask us about it before any cutting.
About 4.6% of Selden homes were vacant in the 2020 Census. If you are away for a week or a house is empty between owners, a running unit with a blocked drain can drip the whole time. Ask a neighbor to look in on it, or shut the unit off before you go. For a wider view of ceiling damage, see ceiling water damage repair.
Dry in place or open it up
A ceiling that is stained but still firm can often be dried in place by lifting a few drywall sections. A ceiling that has sagged, stayed wet for weeks or smells musty usually comes down, because wet drywall and insulation stay damp for a long time. Painted-over stains tell you where the water was, not whether it is gone.
Carpet under a closet unit can usually be saved if the water is clean and caught early, while the pad is replaced. Our wall and drywall repair page explains how patches are cut and finished.
When drip turns into mold
Mold needs moisture and organic material such as paper-faced drywall and wood. A condensate leak that runs for weeks supplies both, so fixing the leak and drying come before any cleaning. If you see growth, read about mold remediation, and ask any mold company to show its New York State licence. Questions about health belong with your physician.
What affects the price
- How long the leak ran before it was found
- The square footage of wet ceiling, wall and floor
- Materials, such as insulation, drywall and carpet pad
- Drying days and the number of air movers and dehumidifiers
- Rebuild scope, including patching and paint
Call us and we will walk through the scope and price before work starts. We also serve Middle Island, about 5 miles east.
A short note on insurance
Sudden and accidental damage is often covered, while gradual leaks and lack of maintenance often are not. A slow condensate drip can fall into the second group. Read your policy or ask your insurer, and keep photos and our readings together.
Stay safe while you wait
- Turn the AC off at the thermostat so it stops making more water
- Keep out of a room with a sagging or bulging ceiling
- Cut power only if the panel is dry and safe to reach
- Move furniture from under the stain and photograph the damage
- Smell gas or see sparks? Leave and call 911 or the utility first
Questions we hear in Selden
Why is my air conditioner leaking water inside the house?
The usual reason is a blocked condensate line or a full drain pan. A frozen coil can also overwhelm the pan when it thaws. An HVAC technician can find which one it is.
Is AC leak water clean?
Condensate starts as clean water but can pick up algae, dust and rust from the pan and ductwork. Standing for days changes how we treat it, which is why we check the source.
How soon should wet insulation come out?
As soon as it is found. Wet insulation holds water against framing, and EPA guidance is to dry wet materials within 24 to 48 hours.
Can you come the same day for an AC leak?
Same-day response is available when crews are free. Call (934) 223-1875 and we will tell you what we can do and what to do in the meantime.
A condensation line is backing up. Is that your job or an HVAC job?
Clearing the line is an HVAC job. Drying the ceiling, wall or floor it wet is ours, and the two tradespeople can work in either order.
Will a stained ceiling dry on its own?
The surface may, but the insulation and framing above it often stay damp. A moisture reading tells you which it is.
Ready to talk it through?
Call (934) 223-1875