AC leak water damage in Fort Lauderdale homes and condos
An air conditioner pulls water out of the air as it cools, and that water has to leave through a small drain line. When algae or debris clog the line, or the drain pan rusts through, the water backs up into the closet floor, the ceiling or the wall cavity. In a condo, the neighbor below may find it first.
The EPA's mold guidance specifically says to keep air conditioning drip pans clean and drain lines flowing, and to keep indoor humidity below 60 percent. A leak that goes unnoticed in a closet can stay wet long enough for mold to start well inside the 24 to 48 hours the EPA gives for drying.
Your call is connected with an independent local company. Water category for this page: usually category 1 or 2 (condensate is clean when it leaves the coil but sits in pans and pipes).
Illustrative photo.
Right now
- 1Turn the system off at the thermostat, then switch off the air handler's breaker if water is near it.
- 2Mop up the closet floor and put a towel or tray under the drip so it stops spreading.
- 3If the ceiling below is bulging, stay out from under it and switch off lights in that room.
- 4Check whether the float switch on the drain line tripped. It is there to shut the unit off when the line backs up.
- 5Photograph the pan, the line and the wet areas, and note the date for your records.
Fort Lauderdale facts for this problem
The EPA recommends keeping air conditioning drip pans clean and drain lines flowing, and holding indoor humidity below 60 percent.
Fort Lauderdale/Hollywood International Airport averaged 78.6°F in 2023, 1.4°F above normal and the second-warmest year in its record, according to NWS Miami.
In a Florida condominium, appliances inside a unit are excluded from the association's property policy and fall to the unit owner.
Source: Fla. Stat. 718.111.
May through October bring 43.80 in. of the Fort Lauderdale station's normal 60.95 in. of yearly rain (1991-2020 normals).
Source: NCEI 1991-2020 normals via ACIS, Fort Lauderdale record, calculated by Lauderdale Flood Line on November 12, 2026.
The city's 24-hour line, 954-828-8000, handles problems on public property; an AC leak inside a home or unit is the owner's to fix.
About 65% of homes in Fort Lauderdale's ten residential ZIP codes were built before 1980, by Census estimates for ACS 5-year 2020-2024.
Source: U.S. Census Bureau, ACS 5-year, tables B25034 and B25035, calculated by Lauderdale Flood Line on November 12, 2026.
In a Fort Lauderdale condominium, Florida Statutes section 718.111(11)(f) says the association's property policy excludes appliances, water heaters, and floor, wall and ceiling coverings inside each unit; those are the unit owner's. Report an AC leak that reached a neighbor's unit to your association in writing.
Sources: Fla. Stat. 718.111
What the work usually involves
Use this as a checklist when a company walks you through the job.
- Find the spreadReadings in the closet, the hallway, behind baseboards and in the unit below show how far the water went.
- Remove what can't drySwollen closet drywall and wet insulation near the air handler are usually cut out. Tile is cleaned and dried.
- Clean the areaPans and nearby surfaces are cleaned because standing condensate grows slime and odor.
- DehumidifyDehumidifiers dry the framing and slab. A working AC helps, but it isn't a substitute for drying equipment.
- Hand off to the HVAC techThe drain line, pan and float switch are an HVAC repair, so ask the HVAC company to fix the cause before walls are closed.
How insurance usually treats it
Water damage from a sudden AC overflow is handled differently from damage that built up over weeks, which many policies exclude as repeated seepage. The AC unit and its parts are usually a separate matter from the water damage. In a condominium, Florida Statutes section 718.111(11)(f) lists appliances and items inside the unit as the unit owner's responsibility.
General information, not insurance advice. Your policy decides. Florida rules at a glance.
What changes the size of the job
- How long the closet stayed wet
- Whether the water reached a ceiling, a hallway or a neighbor's unit
- How much closet drywall and insulation has to be replaced
- Mold found once the wall is opened
- Drying days
We don't quote prices. A company measures moisture on site and writes an itemized estimate.
Questions people ask
Why is my AC leaking water inside the house?
Most often the condensate drain line is clogged or the drain pan under the coil is rusted or cracked. A dirty filter can also freeze the coil, and the melt overflows the pan. The repair is an HVAC job. Drying the house afterward is a water damage job.
Is AC water dirty?
It starts as clean condensate, but it sits in pans and lines where algae and bacteria grow. Treat a long-standing AC leak as gray water and clean the area before drying it.
How soon does mold start after an AC leak?
The EPA says to dry water-damaged areas within 24 to 48 hours to prevent mold. A closet that has been damp for days may already have growth behind the drywall.