Toilet leaks can come from the water or supply tank, but some of the most dangerous water leaks that may affect ceilings come from the worn wax ring. Water seeps through the wax ring when you flush and may start running behind the walls, dripping down pipes, and causing water damage on your ceiling.
Toilet – The seal between your toilet and floor is called a wax ring. A faulty or worn-down wax ring can allow water to leak into your subfloor and ceiling each time a toilet is flushed.
Upstairs Toilet Leaking Through Your Ceiling
This can be a common problem, especially in older homes. The best way to deal with a toilet leak is to replace the wax seal. You can also try tightening the bolts that hold the toilet in place, but this may only be a temporary fix.
Common Reasons Water Leaks From Ceilings
There are two main reasons you could experience water leaking from ceilings: Either there is an issue with your plumbing, such as a damaged pipe or leaking shower. Or there is an issue with your roof, such as a hole or overflowing gutters.
Usually, the first sign of a plumbing leak in your bathroom will be water stains on the ceiling of the room directly below. This is usually a sign that the leak has caused expensive damage to hidden areas and you must call out a plumber to inspect and repair the leak.
The most common toilet leak is caused by a deteriorated flush valve (flapper) at the bottom of the toilet tank. If the flapper does not seat properly, water will leak into the toilet bowl. Often this leak will occur without being heard.
Call a plumber or roofer.
Even if you can't spot the exact source of a leak, the weather outside is a good indicator of what type of leak you have. If it's raining, you probably have a roof leak. If there's no rain, you probably have a plumbing leak.
Inspect the roof itself, looking for raised, missing or damaged shingles. You should also inspect the joints around the roof and the flashing around pipes and vents for a tight seal. Plumbing leaks can cause ceiling leaks in areas beside or below them. If the dampness doesn't dry out, suspect a leaky pipe.
Call a roofer or a plumber to stop the damage from getting worse, then ask them if they have someone they recommend for the rest of the repair. From there, the extent of the damage should be considered before you call someone in for the more cosmetic portion of the ceiling repair.
If your toilet is leaking from the water supply, the water supply line may need repairing. This is a common and inexpensive repair for your plumber to make. If the toilet rocks when you sit on it, your plumber may need to replace the wax seal.
You can use a shop vacuum to blow hot air into the ceiling and aid in drying. Ensure you support the wet drywall while doing this, or you risk permanent sagging.
The wax ring is exactly what it sounds like: a ring made of sticky wax that helps form a watertight seal between the bottom of the toilet and the sewer pipe. It requires no maintenance and can last 30 or more years, often as long as the toilet itself. But sometimes wax rings can dry out, crumble, and fail prematurely.
If your roof or ceiling is damaged by a covered peril — like if a windstorm causes a leak that lets rainwater in — then homeowners insurance may help pay for repairs. But if your roof leaks due to gradual wear and tear and your ceiling is damaged, that wouldn't be covered.
As mentioned earlier, ceiling leakage is not an issue that only concerns you. Dealing with this problem usually concerns three parties: the HDB and the owners of the upper and lower flat. For cases of ceiling leaks between the upper and lower floor flats, both owners share the responsibility of having it fixed.
To find the true source of the leak, you'll need access to the attic. Once there, a quick visual scan may show you where the leak is. Look for water damage on the underside of the roof. The wood may be stained a dark color, or there could be signs of light or dark colored mold growing on the wood.
Monitor Your Water Meter
Shut off all faucets in your home, and make sure your dishwasher and washing machine aren't running. Next, check your water meter and write down the numbers you see. Wait one hour, then check the meter again. If there's a change in the numbers, this confirms there's a leak somewhere.
Moisture from a leak can cause stains to appear on your ceiling or walls. Bubbling, cracked, or peeling paint may indicate water is leaking on the other side of your wall. A warped wall or sagging ceiling also indicate a problem.
Most people don't realize that it's not just serious water damage, such as flooding or a visible leak that leads to mold. Any kind of leak that isn't properly fixed can cause mold to grow. Mold isn't something that takes a long time to grow either.
Be aware that if the leak is significant, there is a chance that a section of the ceiling could collapse and this will cause significant damage.
Ceiling leaks can already be a cause of stress and danger. They can cause ceiling and attic damage, the growth of dangerous molds and mildews, structural instability, and inefficient energy use that may result in higher utility bills.
Water-damaged ceilings are high-priority issues that lead to rot, mold and a weaker house frame. Leaks must be fixed, and water-damaged ceilings repaired, as soon as possible.
A silent leak can be caused by a fill valve set too high.
The fill valve is the part of the toilet that is responsible for refilling the tank after being flushed. Over time, a worn or out of alignment fill valve can become a problem, cause a leak, and wear on valve's components and parts.
Underneath the toilet tank, locate the two plastic nuts that hold the tank to the bowl. Tighten both of the nuts. Dry off the toilet and observe to see if this stopped the leak. If not, you'll need to replace the tank-to-bowl gasket.
About 20 percent of all toilets leak. Most toilet leaks occur from the tank on the back of the toilet into the bowl, and then into the sewer. They might not make much, if any, noise. While common, toilet leaks are usually easy to fix.