You walk past the hall closet and the carpet's damp, or there's a brown ring spreading across the ceiling under the attic. No burst pipe, no storm — just your air conditioner quietly overflowing. In a North Texas summer, your AC runs almost constantly and pulls gallons of moisture out of the humid air every day. When that water has nowhere to go, it ends up in your walls, ceilings, and floors. AC condensate overflows are one of the most common warm-weather water damage calls we get across Plano and DFW.
Your air conditioner is also a dehumidifier. As it cools, moisture condenses on the evaporator coil, drips into a drain pan, and flows out through a condensate line — usually to the outside or a floor drain. The trouble starts when that path gets blocked:
Catch an AC leak early and you avoid most of the damage. Look for water pooling around the indoor air handler or furnace, water stains or sagging on the ceiling below an attic unit, a musty smell near vents or the unit, an AC that's running but not cooling well, or a full, standing drain pan. Many systems have a safety float switch that shuts the AC off when the pan fills — if your AC keeps cutting out on its own in summer, an overflowing pan is a prime suspect.
The danger with AC overflows is what you can't see — water that's traveled through attic insulation, ceiling cavities, and wall framing. Our crews find and dry all of it, typically on-site in under an hour across Plano and DFW, 24/7.
Condensate is essentially clean water, so it usually starts as Category 1. But because AC leaks are slow and hidden, the water often sits long enough to degrade toward Category 2 and to give mold the 24-to-48-hour window it needs. Speed is what keeps it in the easy column.
An AC leak rarely announces itself. It drips into an attic or wall for days while you're none the wiser, so by the time you spot the stain, the damage footprint is already large. Acting fast limits how much drywall, insulation, and framing has to be dried or replaced — and shuts the door on mold before it starts. In a Texas summer, a small overflow caught early beats a ceiling repair every time.
Bottom line: kill the AC, mop up what you can, document the damage, and get the hidden water dried before it spreads or molds. Caught an overflow or a ceiling stain under your unit? Call Flood Dry Elite at 469-555-0140 — 24/7 water damage response across Plano and DFW, crews on-site in under an hour.
Almost always a clogged condensate drain line. Your AC pulls humidity from the air, and that water normally drains outside. When algae or debris blocks the line, the drain pan overflows. A failed condensate pump, a cracked pan, or a frozen-then-thawed coil can cause it too.
A surprising amount, because it's slow and hidden. Many DFW air handlers sit in attics or closets, so an overflow drips through the ceiling for days before anyone notices. By then drywall, insulation, and framing are soaked, and mold has a head start — which is why these leaks often cost more than a fast, obvious flood.
The resulting water damage is often covered if the failure was sudden, but a long-neglected drain line can be ruled a maintenance issue and denied. Repairing the AC unit itself usually isn't covered. Document the source and the damage, and don't let it keep dripping — most policies require you to limit further loss.
Call our 24/7 emergency line — a Plano-area crew is typically on-site in under an hour to stop the damage and start drying.