If it's noticeably sticking or if you hear trickling water, you most likely need a new flush valve. You may also see water leaking through the flapper, which makes your tank extremely slow to fill. In order to fix this leak, a professional is required to repair the seal.
While leaky sinks and pipes can cause damage to your home, there's a vast difference between a tiny leak that's dripping and a considerable leak that quickly fills buckets of water. A large volume of leaking water is generally considered a plumbing emergency.
It costs between $150 and $300 to fix a leaking toilet in most cases. The cost would be a lot more if the leak has caused damage to your floor or if it's a recurring problem.
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.
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.
When a toilet leaks at the base, with water pooling on your bathroom floor, it's typically due to the failure of the wax gasket that seals the toilet to the floor. This seal should make a watertight connection between the toilet and floor. A leak often means that the wax seal may need to be replaced.
Don't wait before calling a plumber to help! As well as being harmful to the environment, a leaking toilet left unrepaired can cause a lot of damage to the rest of the home, such as affecting the flooring along with the ceilings below.
Again, leaky water is a telltale and common sign of a bad wax ring. If you do not regularly see moisture or puddling water under your toilet, you may be fine. Leaks can, however, happen where you do not see them, under the finished floor and into the subfloor.
A leaky toilet might not seem like a huge problem, but the water can quickly damage the bathroom walls and floor. External leaks can cause water puddles that can damage a downstairs ceiling, while internal leaks prevent the toilet from holding water properly.
While toilets are meant to last several decades, they do have a limit. If you know your toilet has been around longer than you've been alive, then there's a chance that it's likely on its last leg already. A general rule of thumb is to replace a toilet around every 25 years, though your mileage may vary.
Since the water flows down the sewer, leaking toilets don't necessarily leave any signs of a leak, until you get the bill. The average leaky toilet can waste about 200 gallons of water per day. That's over 6,000 gallons a month ($70.06*) for just one leaking toilet!
Sewage backup
While a leaking toilet may be covered by your homeowners insurance policy, a flooded or backed-up sewage system is not covered, even though it may overload your plumbing system.
You'll be covered for plumbing leaks if it's sudden, accidental and significant enough that it's discovered right away. But again, most homeowners insurance policies exclude damages that occur gradually.
In theory, the wax ring “should” last the lifetime of the toilet, or certainly 20 to 30 years. We come across situations all the time, however, where wax rings are in need of replacing well short of this scenario.
You should always consider replacing the toilet supply when replacing the wax seal. If toilet is caulked to the finished floor of the bathroom, score the caulking all the way around the toilet base with a razor knife.
Bad Odours
Another common sign is a bad odour in your bathroom. A damaged wax ring not only creates a leak every time you flush your toilet, but it can allow gases from the sewer system to leak into your home.
The wax ring usually needs to be replaced because the toilet is loose. The other reason why a wax ring may need to be replaced is that it has been worn down over the years and is no longer pliable. This means the seal is no longer intact. Therefore, it causes water to seep through the base.
$90-$120 is a good ballpark.
If you are having other plumbing work done, they might do it cheaper, and if they have a large travel fee, you may pay closer to $150. Unless there is a problem, it should take them under a half hour, whereas, it might take a novice 1.5-2 hours.
The three most common types of toilet leaks are in the flapper, the water supply line, and the wax ring under the toilet. For each type of leak, the first way to try to identify where the leak is coming from is to do a visual inspection. Often, you'll see evidence of water leaks.
A leaking toilet loses water from the tank to the bowl without being flushed, which is typically due to an improperly adjusted or broken fill valve causing water to enter the tank and flow into the overflow tube. Most toilet leaks are caused by a faulty valve (also known as “flush valve ball” or “tank stopper”).
A leaking toilet can be annoying and wasteful. To check if your toilet has a leak, place a few drops of food coloring in the tank. If coloring is seen in the bowl without flushing, you have a leak.