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AC Condensate Leaks in Greenacres, FL: The Leak That Looks Like Plumbing
In Greenacres and across South Florida, your air conditioner pulls a surprising amount of water out of the air every day it runs. That water has to drain somewhere. When the condensate line clogs or the pan fails, the water ends up on a ceiling, in a closet, down a wall or across the floor, and it looks exactly like a plumbing leak.
Star Florida Leak Detection tells the difference fast. We check whether the water is tap water or condensate, inspect the drain line, pan and float switch, and make sure you do not pay for slab or wall leak detection when the real problem is a clogged AC drain.
Tell us what you are seeing and we will quote the detection price on the phone, before anyone comes out.
- Licensed Florida plumbing contractor
- Local office in Greenacres
- Written, dated leak report
- Members of PHCC and the South East Apartment Association
What an AC Condensate Leak Is
An air conditioner cools your home by pulling heat and moisture out of the air. The moisture condenses on the cold indoor coil, drips into a pan under the coil, and flows out of the house through a small drain line called the condensate line.
In our climate, that line carries water almost every day of the year. When it works, you never think about it. When it clogs, the pan fills up and overflows. Depending on where your air handler sits, the overflow shows up as a stain on a hallway ceiling, water in an interior closet, a wet spot in the garage, or water running down the inside of a wall.
Because the water appears inside the house, near walls and ceilings, most people assume it is a plumbing leak. It is not. Condensate is water the AC pulled out of the air. It never went through your water meter, so it does not raise your bill, it does not move your meter, and it usually does not carry the chlorine that tap water does.
That distinction matters. A plumbing leak and a condensate overflow need completely different fixes. Paying for slab leak detection or opening a wall to chase a leak that is really a clogged AC drain is money and drywall you did not need to lose.
Signs Your Leak Is Coming From the AC
Water near the air handler
A ceiling stain below an attic air handler, a wet floor in the closet where the air handler sits, or water around the unit in the garage.
Worse on hot, humid days
The AC removes the most water when it runs hardest. Overflow often shows up on muggy afternoons and after long run times.
The AC shuts off by itself
Many systems have a float switch that shuts the AC down when the pan fills. A system that stops cooling and then works again later can be tripping on a clogged drain.
Water in the secondary pan
If the pan under an attic or closet unit has standing water, the primary drain is not keeping up.
Water dripping outside where it should not
Some systems have a secondary drain that exits over a window or eave. Water dripping from that pipe means the primary drain is blocked.
Musty smell near the vents or closet
Standing water in a pan or a wet closet floor encourages mold and odors near the air handler.
Water near your air handler? Tell us where it is and when it shows up.
Call (561) 783-8857Three Quick Tests: AC Condensate or Plumbing?
1. The meter test
Turn off every fixture and appliance and check the leak indicator on your water meter. A moving meter means a supply plumbing leak. A still meter makes condensate, a drain leak or rain more likely. How to check your meter.
2. The chlorine strip
Palm Beach County Water Utilities uses chloramine in its eastern service area, so tap water should read positive on a total chlorine test strip. Condensate usually reads zero. Pool water and reclaimed water can carry chlorine too, so use it as a clue.
3. The AC off test
Mop up the water, turn the AC off for a few hours, and see whether new water appears. If it stops with the AC off and returns when it runs, the AC is the prime suspect.
What Causes Condensate Leaks
Clogged drain lines
The condensate line is a small pipe with warm, dark, constantly wet conditions inside. Algae, slime and debris grow there, especially in Florida. Over time they narrow the line until water backs up into the pan. This is the most common cause we see.
A full or cracked secondary pan
Units in attics and above living spaces usually sit in a secondary pan meant to catch overflow. If that pan is rusted through, cracked or has its own clogged drain, the water goes straight into the ceiling.
A float switch that is missing or not working
A float switch is a small safety device that shuts the AC off before the pan overflows. If it is missing, stuck or wired incorrectly, nothing stops the water.
Disconnected or sagging drain piping
Condensate lines are often glued PVC. A joint can separate, or a section can sag so water pools instead of draining. Either one leaks inside the wall or attic.
Frozen coils
A dirty filter or low airflow can freeze the indoor coil. When the ice melts, it can overwhelm the pan all at once.
Installation issues
A drain without the right slope, a missing trap, or a line tied into the wrong place can cause repeat problems even after the line is cleared.
What the Building Code Expects
Residential building codes treat condensate overflow seriously for a reason: an air handler above a ceiling can do a lot of damage when its drain clogs. Where overflow could damage the building, the residential code generally requires a backup to the primary drain. That backup can be a secondary overflow drain that discharges somewhere you will notice it, an auxiliary pan under the unit with its own drain, or a device that shuts the system down or alerts you when the drain is not working.
Many homes have these protections. Some have them in name only: a pan that has rusted through, a secondary drain that is also clogged, or a float switch that was bypassed. Part of our visit is checking whether your backup protection would actually work the next time the primary drain clogs.
Air handler replacement, refrigerant work and system repairs are HVAC contractor work. We diagnose the leak, clear simple drain clogs, check the pan and safety switch, and tell you plainly when you need an HVAC contractor.
What We Do on an AC Leak Call
Confirm it is not supply plumbing
We check the water meter with everything off and test the standing water. That tells us quickly whether this is a plumbing leak or an AC issue.
Inspect the air handler area
We look at the primary drain, the trap, the pan under the coil, the secondary pan and its drain, and the float switch.
Find where the water is escaping
Overflowing pan, separated joint, cracked pan or blocked secondary drain. Each one points to a different fix.
Map the wet area
Moisture meters and a thermal camera show how far the water has spread into ceilings, walls and floors.
Clear or recommend
Where it is a simple clog in the drain line, we clear it and confirm flow. Where the fix is HVAC equipment, we tell you and document what we found.
Report
You get a dated report with the cause, the moisture map and photos, useful for insurance and for any restoration work.
Where Air Handlers Sit in Greenacres Homes, and Where the Water Goes
Attic air handlers
Common in single story homes. Overflow comes through the ceiling, often in a hallway or bedroom. Stains here are frequently blamed on the roof.
Interior closet air handlers
Common in condos, villas and townhouses. Overflow soaks the closet floor and spreads under walls into the next room or hallway.
Garage air handlers
Overflow puddles on the garage slab and can run under the wall into the house. Easy to spot, easy to ignore until it spreads.
In two story condos and townhouses, an upstairs unit’s condensate overflow can show up in the ceiling of the unit below. Our report identifies the source so associations and owners can sort out responsibility.
How to Prevent Condensate Leaks
- Change your AC filter on schedule. Clean airflow helps prevent frozen coils and heavy debris in the pan.
- Keep the condensate line clear. Many homeowners keep the line clear by pouring a cup of white vinegar into the access port periodically, following their system manufacturer’s guidance. An HVAC technician can also flush it during regular service.
- Test the float switch. Ask your HVAC technician to confirm it actually shuts the system off.
- Look at the secondary pan. Standing water or rust in the pan is an early warning.
- Know where your secondary drain exits. If water ever drips from it, call for service before the next overflow reaches the ceiling.
- Put a water sensor near the air handler. An inexpensive alarm in the closet or pan catches overflow the first time.
Insurance, Your Water Bill and Repairs
Your water bill
Condensate does not go through your water meter, so it does not raise your bill, and the county’s Excessive Usage Credit does not apply. If your bill is also up, you may have a separate supply leak.
Insurance
Coverage for sudden water damage from an AC overflow varies by policy. Gradual leaks and maintenance issues are commonly excluded, and many Florida policies treat leaks lasting 14 days or more differently. Report promptly. General information, not insurance advice.
Ceiling and drywall repair
Ceiling drywall that got soaked may need to be dried or replaced. Our moisture map shows exactly what got wet so nothing is closed up damp.
What to Do Right Now
Turn the AC off at the thermostat
That stops new condensate from forming while you deal with the water.
Protect the area
Move furniture and electronics, and put a bucket under active drips. Keep people away from a sagging ceiling.
Check the pan
If you can safely reach the air handler, look for standing water in the pan. Do not climb into an attic without safe footing.
Run the quick tests
Meter check with everything off, and a total chlorine strip on the water, tell us a lot before we arrive.
Photograph and call
Take dated photos and call us. We will tell you whether it sounds like the AC or plumbing before we come out.
Why Florida Air Conditioners Produce So Much Water
An air conditioner does two jobs: it lowers the temperature and it removes moisture. In a dry climate, the second job is small. In South Florida, it is huge. Our air holds a lot of water for much of the year, and every hour the system runs, it condenses some of that moisture on the cold coil and sends it down the drain.
That is why condensate problems are so common here compared with other parts of the country. The line is wet almost constantly, which gives algae and slime ideal conditions to grow. The system also runs for long stretches, especially from late spring through fall, so a partial clog that might be harmless elsewhere can overflow a pan here in a single afternoon.
It also explains the timing people notice. Leaks that appear on the hottest, stickiest days, or after the AC has run hard overnight, fit condensate much better than plumbing. A supply plumbing leak does not care what the weather is doing.
Hidden Damage From Repeated Overflows
A single overflow that gets cleaned up quickly usually does little lasting harm. Repeated small overflows are a different story, because they soak the same materials again and again before they can dry.
Ceiling drywall and insulation
Attic insulation under a leaking pan holds water against the ceiling. The drywall can sag, stain and eventually fail, and mold can grow on the top side where no one sees it.
Closet floors and wall bottoms
Water from a closet air handler wicks into the bottom of the walls and under flooring in the rooms next door. Swollen baseboards and a musty smell are early signs.
Subfloor and flooring
Laminate and wood floors near an air handler closet can cup or separate. Carpet pad can stay wet underneath while the surface feels dry.
The equipment itself
A pan that stays full can rust, and water around the air handler can reach electrical components. That part is for an HVAC contractor to assess.
What an AC Leak Visit Costs
We quote the visit on the phone before we come out. A simple clog in the condensate line is usually a quick clear. The larger costs come from damage that was allowed to build up, and from equipment problems that need an HVAC contractor, such as a cracked internal pan or a failed air handler component.
The most expensive mistake is chasing the wrong leak. Opening walls or paying for slab leak detection when the water is really condensate costs money you did not need to spend. Confirming the source first, with the meter and a chlorine strip, is the cheapest step in the whole process.
When You Also Need an HVAC Contractor
Most condensate leaks are drain problems, and clearing the drain solves them. Some are signs of an equipment issue. Call an HVAC contractor as well if any of these apply:
- The pan inside the air handler is cracked or rusted through.
- The coil keeps freezing, even with a clean filter.
- The system trips the float switch again within days of the line being cleared.
- Water has reached electrical parts of the air handler.
- The system is old and struggling to cool, on top of the leak.
Our report gives the HVAC contractor exactly what we found, so they start with facts instead of starting over.
Frequently Asked Questions
How do I know if my leak is from the AC or plumbing?
Check your water meter with everything off. A moving meter points to supply plumbing. A still meter makes AC condensate more likely. Water near the air handler that gets worse on humid days and reads zero on a total chlorine strip strongly suggests condensate.
Why is my AC leaking water inside the house?
Usually because the condensate drain line is clogged, so the pan under the coil fills and overflows. A cracked pan, a separated drain joint, a frozen coil or a failed float switch can also cause it.
Will an AC condensate leak raise my water bill?
No. Condensate is moisture the AC pulls from the air. It never passes through your water meter, so it does not raise your bill.
Is a ceiling stain under my attic air handler a roof leak?
It can be either. If the stain grows after rain, think roof. If it grows on hot, humid days when the AC runs hard, think condensate. We check both.
What is a float switch?
A safety device that shuts the AC off when water rises in the pan or drain, before it overflows. If yours is missing, stuck or bypassed, nothing stops the overflow.
Does the building code require overflow protection?
Where condensate overflow could damage the building, residential code generally requires a backup to the primary drain, such as a secondary drain, an auxiliary pan with its own drain, or a device that shuts the system down or alerts you.
Can you fix my air conditioner?
We diagnose the leak, clear simple condensate drain clogs and check the pan and float switch. Equipment repair, refrigerant work and air handler replacement are HVAC contractor work, and we will tell you when you need one.
How can I prevent condensate clogs?
Change filters on schedule, have the line flushed during AC service, test the float switch, and put a water sensor near the air handler. Many homeowners also use vinegar in the access port following their manufacturer’s guidance.
Does the county water bill credit cover AC leaks?
No. Condensate does not pass through the meter, so it does not create the high usage the credit is based on.
What should I do first if my AC is leaking?
Turn the AC off at the thermostat, protect the area, check the pan if you can reach it safely, and call us with your meter and chlorine strip results.
Question not answered here? Call (561) 783-8857 and ask. Talking it through costs nothing.
Related Leak Services in Greenacres
Find Out If It Is the AC or the Plumbing
Do not pay to chase a plumbing leak that is really a clogged AC drain, or ignore a plumbing leak because you assumed it was the AC. Call us, tell us what you are seeing, and we will quote the visit before we come out.
Star Florida Leak Detection, 4021 S 57th Ave #105, Greenacres, FL 33463. Member of PHCC and the South East Apartment Association. Last updated September 2026.