Clogged primary drain line
Algae, slime and debris can build up inside the condensate line until it blocks. The pan then fills and overflows, and the water goes wherever the pan sits, usually into an attic or a closet.
Urgent? Phones answered 24/7
AC Condensate Water Damage in Lewisville
Drying and cleanup after a clogged condensate line or failed secondary pan overflows into an attic, closet or ceiling.
- Phones answered 24/7, freeze nights included
- Attic water heaters, burst pipes, lake and creek water
- Emergency-stage price approved before work starts
- Daily moisture logs and photographs, yours to keep
Get a fast quote
Fastest: call (833) 490-5225. Or send this and we call you back.
AC Condensate Leaks
AC Condensate Water Damage: what it covers
Quick answer
AC condensate water damage happens when the water an air conditioner pulls from humid air has nowhere to go and spills from a clogged drain line or an overflowing pan. Lewisville Water Damage Restoration dries the attic, closet and ceiling in Lewisville and Denton County. An HVAC technician repairs the system. Calls are answered around the clock, and a crew is dispatched as fast as one is available.
An air conditioner does two jobs: it cools the air and it removes moisture from it. In a hot, humid North Texas summer that moisture is a lot of water, and it collects on the indoor coil and drains away through a pipe. Nobody thinks about that pipe until it clogs.
When it does, the drain pan under the coil fills and spills. If the air handler sits in the attic above a bedroom or hall, the overflow soaks insulation and drywall, and the first sign is a ceiling stain in July. If the unit is in a closet or garage, it wets walls and floors.
The crew's job is the building: removing wet insulation, drying the framing and ceiling, and recording readings. Cleaning a clogged line, fixing a pan and checking the unit belong to an HVAC technician. Restoration cannot prevent the next overflow, so ask your technician what stopped the drain.
- Service area
- Lewisville & Denton County
- Availability
- Phones answered 24/7, emergencies first
- Typical cost
- $800–$3,000 (estimate)
- Phone
- (833) 490-5225
Warning signs
Signs you need ac condensate water damage
Switch the air conditioner off at the thermostat and its breaker. Never step on wet ceiling drywall, and do not enter an attic where the insulation is soaked or the floor is wet.
- A ceiling stain or drip under an attic air handler during hot weather
- A float switch that has shut the system off, or an air conditioner that stops cooling on its own
- Water in the pan under the indoor unit, or a pan with algae or slime stains
- Water pooled on a closet or garage floor beside the air handler
- Damp or compressed insulation around the unit in the attic
- A musty smell near vents or in a hallway under the attic
- Rust or water stains on the air handler's casing or platform
- A wet spot on the exterior wall where a secondary drain line ends
Cost
How much does ac condensate water damage cost in Lewisville?
Condensate leaks tend to be slow and long, so the wet area is often an insulation-and-ceiling problem instead of a flood. The price follows the wet area, how long water ran and how many drying days the framing needs.
| Job | Typical range | What it includes |
|---|---|---|
| Water heater, AC condensate or appliance leak cleanup (extraction + drying, one area) | $800–$3,000 | HVAC repair not included |
| Ceiling water damage repair (one section, incl. insulation, texture + paint) | $500–$1,800 | Repair stage, quoted once the ceiling reads dry |
| Antimicrobial application (per sq ft) | $0.50–$2.00 | Considered where water has sat on materials for a long time |
| Commercial dehumidifier (per unit, per day) | $65–$150 | Runs until the readings meet dry targets |
| After-hours, weekend or holiday emergency fee | $100–$300 | Added for calls that come in outside regular hours |
Every number here is a working estimate for the Lewisville area in 2026. Nothing is a fixed price until a technician looks at your attic or closet and you approve the emergency stage.
Options
Types and options for ac condensate water damage
Failed or missing secondary pan
A secondary pan catches the overflow when the main line fails. If the pan is cracked, rusted through or clogged itself, the water bypasses the safeguard and reaches the ceiling below.
Float switch or coil problems
A float switch is meant to shut the unit down when the pan fills. If the switch fails, or a frozen coil melts and sends extra water to the pan, a system can overflow with no warning to the homeowner.
Still stuck? We pick up 24/7.
If it's an emergency, call now. For non-urgent ac condensate water damage, send the form and we'll call you back.
Why does an air conditioner leak water in a North Texas summer?
An air conditioner removes humidity as it cools, and that water collects on the coil and drains through a condensate line. In a hot, humid summer the unit runs for months and makes a lot of it. If the line clogs or the pan fails, the water has nowhere to go.
The coil is cold, so moisture in the warm indoor air condenses on it and drips into a pan. From there a small pipe, often plastic, carries it outdoors or to a drain. Those lines are narrow and warm and wet, which suits algae and slime.
Once the heat settles in, the unit runs for hours, and a line that was partly blocked can finally stop. June is when condensate lines start to overflow around Lewisville, and July's heat keeps the overflow coming.
Is condensate water clean?
Not always. Condensate starts as clean water, but a pan or line with algae or slime can carry growth, and water that sits in warm insulation can degrade. A technician sets the water category on site, and that choice decides how much material is removed instead of dried.
Condensate looks clear, so it is easy to treat as harmless. The pan and drain line tell a different story: standing water in a warm place supports microbial growth, and that growth rides along when the pan overflows.
For this reason an antimicrobial treatment may be recommended on some jobs. Your estimate will say so if it applies, and you can ask what the crew found.
Who fixes the air conditioner and who dries the house?
A licensed HVAC technician clears the drain line, repairs the pan or float switch and checks the unit. The restoration crew removes wet insulation, dries framing and drywall, and documents readings. Neither trade does the other's work, so ask both what they are doing and in what order.
Lewisville Water Damage Restoration does not repair or service air conditioners. If the drain is still blocked when the crew arrives, the pan can fill again, so tell the dispatcher whether the system has been shut off.
After the HVAC technician has cleared the line, ask what caused the blockage and whether a float switch or a cleanout can be added. Those are the parts that keep a pan from overflowing again.
What should I do when I see a stain under the attic air handler?
Turn the air conditioner off at the thermostat and the breaker, then stay off the attic floor and out from under a bowed ceiling. Place a bucket if water is dripping, take photographs, and call an HVAC technician and a restoration crew. Do not run the unit to test it.
An air conditioner left running keeps making condensate, and a blocked pan will keep overflowing. Turning it off stops the supply while help is on the way.
If the house is hot, open windows and use fans in rooms that are not under the leak. Do not climb into an attic where the floor or the insulation is wet.
Our process
How our ac condensate water damage visit works
Switch off the system
Turn the thermostat to off and shut the air conditioner's breaker, so the unit stops producing water while the area is assessed. Do not run it to see if the leak returns.
Extract and check the path
Standing water in the pan, closet or attic floor is removed. Meters and a thermal camera then follow the water into insulation, ceilings and walls below.
Remove wet materials
Insulation that stayed wet is taken out, along with soft drywall. Framing and firm drywall are kept and dried, and cabinet or floor areas are checked.
Dry in a hot attic
Air movers and dehumidifiers run until the framing and ceiling read dry. A hot attic can help drying, but moisture meters still decide when the work is done.
Document and coordinate
Afterward you are given photographs, readings and a list of removed materials. Drying and the HVAC technician's repair can be scheduled around each other, and repairs to the ceiling are quoted afterward.
Denton County
Why ac condensate water damage is different in Denton County
Lewisville summers are hot and humid, and the air conditioner is the busiest appliance in the house for months. The slab homes in Flower Mound, Highland Village and the newer parts of Lewisville commonly put the air handler in the attic, which puts the pan above finished ceilings.
The period when drains clog is the period when the leak does the most damage: the attic is hot, the insulation is dry, and nobody goes up to look. A ceiling stain in Denton County in July is as likely to come from a condensate pan as from the roof.
If the stain came from a tank instead, see water heater leak cleanup. Fall tune-ups are a good moment to ask a technician to look at the line, the pan and the float switch, before the cooling season starts next year.
Where we work
AC Condensate Water Damage across Denton County
- AC Condensate Leaks in Highland Village
- AC Condensate Leaks in Hickory Creek
- AC Condensate Leaks in Lake Dallas
- AC Condensate Leaks in Lakewood Village
- AC Condensate Leaks in Copper Canyon
- AC Condensate Leaks in Double Oak
- AC Condensate Leaks in Flower Mound
- AC Condensate Leaks in Bartonville
- AC Condensate Leaks in Corinth
- AC Condensate Leaks in Shady Shores
- AC Condensate Leaks in The Colony
- AC Condensate Leaks in Little Elm
- AC Condensate Leaks in Oak Point
- AC Condensate Leaks in Frisco
- AC Condensate Leaks in West Plano (Legacy)
- AC Condensate Leaks in Carrollton
- AC Condensate Leaks in Coppell
- AC Condensate Leaks in Addison
- AC Condensate Leaks in Farmers Branch
- AC Condensate Leaks in Argyle
- AC Condensate Leaks in Roanoke
- AC Condensate Leaks in Trophy Club
- AC Condensate Leaks in Westlake
- AC Condensate Leaks in Southlake
- AC Condensate Leaks in Grapevine
- AC Condensate Leaks in Colleyville
- AC Condensate Leaks in Euless
- AC Condensate Leaks in Denton
Not sure if you're covered? Check your ZIP code.
Related
Related services
Ceiling Water Damage
Drying and cleanup of stained, bulging or sagging ceilings fed by attic equipment, upstairs plumbing or a leaking roof above.
Water Heater Leak Cleanup
Water removal and drying after a tank fails or a pan overflows, including attic heaters that soak insulation and the ceiling below.
Structural Drying
Air movers, dehumidifiers and daily moisture readings that dry Lewisville walls, floors and cabinets to a written goal.
Guides
Read before you book
Attic Water Heater Leaks in North Texas: Pan, Drain Line and Shutoff
A leaking attic water heater soaks insulation, then the ceiling below.
FAQ
AC Condensate Water Damage FAQs
Why is water dripping from my AC unit?
A clogged condensate drain line is one cause, and a cracked pan or a failed float switch can also do it. Turn the system off and call an HVAC technician to clear it.
Can I clear the drain line myself?
Some homeowners flush a line with a wet-dry vacuum or a cleaning solution, but an attic is hot and the floor can be fragile. A technician can clear it and check the pan, and a leak that has already wet the ceiling needs drying.
How soon does mold grow after an AC leak?
It depends on how wet materials stay and for how long. Drying wet insulation and drywall quickly limits mold growth. A musty smell after a leak is worth having checked.
Do I need to replace attic insulation after a condensate leak?
Wet insulation is usually removed, since it compresses and dries slowly. A technician checks it with a meter and takes out what will not dry in time.
Will my homeowners policy cover an AC drain overflow?
Coverage rests with your insurer and the wording of your policy, and we cannot forecast it. Policies word sudden events and ongoing leaks differently, so read yours and ask your agent. Keep the crew's readings, photographs and list of removed materials with your records.
How can I keep it from happening again?
Have an HVAC technician check the drain line, secondary pan and float switch each year before summer. A switch that shuts the unit off when the pan fills is the part that keeps a clog from turning into a ceiling stain.