The Most Common Causes of Plumbing Leaks

Pipe leaks are perhaps the most common plumbing issue every homeowner would have to face at least once in their lives. But do you know you can actually avoid these leaks and save some money for hiring professionals or your increasing monthly water bill? The key is to know the causes of plumbing leaks and how to avoid them from happening.

But a word of advice: Always have the number of your chosen plumbing repair services. You may avoid plumbing leaks, but there are tons of other plumbing issues that could cause you headaches.

With that said, here are the most common causes of plumbing leaks:


The first and perhaps the most usual cause behind leaking pipes is corrosion.

Corrosion happens when your pipes are getting old and steadily deteriorating. A dead giveaway of corrosion is discoloured pipes for any metal pipes or warping on PVC pipes. Always check any exposed piping you may have for any signs of corrosion. 

Once you see corrosion, even in its early stages, call professional plumbing repair services. Besides possible leaking and flooding your pace, corrosion can also cause minor to major health issues due to the debris getting into the water that you use.

Corrosion is normal. However, depending on your water’s pH level, the level of bacteria there is, oxygen levels, water pressure and other factors, corrosion could start happening at different times.

Faulty sealants

Sometimes, even newly-installed pipelines can start leaking as soon as you use them or a few days after they are installed. This could be because of faulty and broken seals.

Sealants are used on certain parts of a plumbing system, often around connections to plumbing fixtures and appliances such as your washing machine, a dishwasher, or a faucet. If the plumber you worked with did not use good-quality sealants or wasn’t able to seal these areas, leaks are inevitable.

However, these faulty sealants aren’t always the plumber’s fault. Like everything else, sealants can also degrade over time. When your plumbing system ages, the sealants would also slowly lose their function. Once they do, plumbing leaks are sure to happen.

Sealants have an average lifespan of 20 years, although some believe it could last up to 30 years.

Clogs and blockages

Clogs are also among the most common plumbing issues anyone would face. But there are so many that think it’s not something urgent. Some even leave clogs alone, thinking it would fix itself somehow.

But if you need something to convince you to fix these worrisome clogs, they could cause your pipe to burst. Most of the time, the end result isn’t a mere leak–you might actually flood your place. Once flooding starts, water damage could be hard to fix, especially if it gets to your other home appliance and stuff.

Because of the blockage, water won’t be able to flow freely. The pressure from the water building up would cause too much pressure that the pipe won’t be able to handle, thus causing the leak.

Damaged pipe joints

Pipe joints are basically the place where pipes connect to something else, whether another line of pipe or a fixture. Since pipe joints are naturally where pipes end, they should be sealed correctly, screwed in properly, or angled perfectly. If not, it would cause some leaking that could further lead to more damages.

The same thing could also happen when connections between the pipe and a certain device loosen as time passes by.


There are definitely more culprits that could cause you some massive headaches, but there are definitely things you can do to avoid them. The key is to be a lot more aware of your plumbing system and have it maintained and checked regularly to find and fix issues before they start.