Attic Water Leak Cleanup in Keller, TX

Is This What You Are Seeing in Your Keller Home?

• Ceiling stain under the attic unit. A brown ring in the ceiling under the air handler or the water heater platform usually means a pan overflow.
• Water dripping from vents. Water at a supply register or ceiling vent can come from condensate or a sweating duct in the attic.
• AC shuts off on its own. Some units have a float switch that turns the AC off when the pan fills, which signals a clogged drain.
• Rust in the drain pan. A rusty secondary pan can leak through its bottom even if it never overflows.
• Sagging drywall or nail pops. Bulging drywall or nail pops in the ceiling show weight from wet insulation above.
• Musty hallway smell. A damp smell in a hallway or closet under the attic unit can mean a slow leak has been running for a while.

Attic Water Leak Cleanup: What Is Happening and Why It Matters

An attic leak is water that starts above the ceiling from equipment or plumbing, not from the roof. In Keller homes, the usual sources are an attic water heater, an AC air handler whose condensate pan overflows, or supply lines that run through the attic to bathrooms and the kitchen. Because the leak sits above the living space and out of view, it often runs for hours or days before a stain finally shows on the ceiling.

Water in an attic spreads quietly. It soaks blown insulation, which holds it against the back of the ceiling drywall until the drywall sags or breaks. It runs along joists to walls and drips down inside them, and it can reach light fixtures, smoke detectors and ceiling fans. Condensate starts clean but sits in pans that collect dust and growth, so a pan overflow is often treated as category 2 water.

A local restoration crew works from the top down. Technicians confirm the equipment is off, then go into the attic to find the source, check the pan, the drain line and nearby supply lines, and remove wet insulation. Below, they open soaked ceiling sections, protect furniture, extract water from carpet and floors, and set drying equipment in the rooms and airflow in the attic so both levels dry.

Attic water heaters and attic HVAC air handlers are common in DFW homes built in the decades when most of Keller filled in. Long, hot summers mean AC systems run for months, and attic units make a lot of condensate. When the primary drain line clogs and the secondary pan is rusted or its drain is blocked, that water ends up in the ceiling of a bedroom or hallway.

Do These Things Before the Crew Arrives

1. 1
   Turn off the source Switch the AC off at the thermostat, or turn the attic water heater to off and close its cold supply valve.
2. 2
   Close the main if unsure If you cannot tell which line is leaking, close the house main valve.
3. 3
   Turn off ceiling power Switch off breakers for lights and fans in the wet part of the ceiling.
4. 4
   Keep clear of sagging drywall Move people, pets and furniture out from under any ceiling that bulges or drips steadily.
5. 5
   Catch the water Set buckets and towels under drips, and move rugs and electronics out of the room.
6. 6
   Look from the hatch If it is safe, shine a flashlight from the attic hatch to see whether the pan is full or a line is spraying, without stepping off the framing.

How a Keller Crew Handles Attic Water Leak Cleanup

1. 1

   Stop the attic source

   Technicians confirm the AC, water heater or supply line is shut off, then trace the leak to the pan, drain line, tank or fitting in the attic.

2. 2

   Protect the rooms below

   Furniture is moved or covered, floors are protected, and power to wet ceiling fixtures stays off before any ceiling drywall is opened or removed by the crew.

3. 3

   Remove wet insulation

   Soaked insulation around the unit and over the wet ceiling is bagged or vacuumed out, taking weight off the drywall and exposing the joists to moving air.

4. 4

   Open the ceiling

   Saturated or sagging ceiling drywall is cut out in clean sections, and water is extracted from carpet, pad and floors in the rooms directly underneath the leak.

5. 5

   Dry both levels

   Dehumidifiers and air movers run in the rooms below while airflow reaches the attic framing, so joists, top plates and remaining drywall all dry at once.

6. 6

   Confirm and coordinate repairs

   Final readings confirm dry framing and drywall, and the crew documents the source so an HVAC tech or plumber can fix it before ceilings are rebuilt.

Why It Happens in Keller Homes

Clogged condensate drain line

Algae and dust build up in the AC primary drain line over a long summer and stop it from draining.

Rusted or blocked secondary pan

The backup pan under the air handler can rust through or have its own drain line blocked.

Attic water heater failure

A tank, drain valve or relief valve leak in the attic sends water straight into the ceiling below.

Attic supply line leaks

Supply lines run through the attic to the baths and kitchen, and the fittings or lines up there can fail.

Missing or failed float switch

Without a working float switch, the AC keeps running and making condensate while the pan overflows.

Many Keller homes from the 1980s through the 2000s put the air handler, and sometimes the water heater, in the attic to save floor space. In larger homes in Hidden Lakes, Marshall Ridge and other master-planned communities, two or more systems may sit up there over bedrooms and hallways. Long, humid summers keep those systems running and filling the drain line with condensate.

When that line or pan fails, the water has nowhere to go but down. Crews in Keller spend much of their time on attic insulation, ceiling drywall and the carpet in the rooms below, and the work goes best when the HVAC tech or plumber fixes the source while drying is underway.

What It Costs and How Long It Takes

How to Keep It From Coming Back

• Flush the AC drain line. Pour a cup of white vinegar into the condensate drain access each spring and fall to slow algae buildup.
• Check the secondary pans. Look at the pans under the air handler and the attic water heater for rust or standing water.
• Install float switches. A float switch in the pan or drain line shuts the AC off before the pan can overflow.
• Add an automatic shutoff. A leak sensing valve can close the supply to an attic tank as soon as it detects water.
• Schedule spring AC service. Have the AC serviced before summer so the drain, pan and coil are clean.

Attic Water Leak Cleanup FAQs