A leaky tap may seem like nothing more than a minor annoyance, however, if left unattended it can quickly turn into a bigger, more expensive problem. 

What problems can a leaky tap lead to?

In the long term, dripping taps can lead to a lot of wasted water, upwards of 5,500 litres per year in fact, which can have a significant effect on your annual water bill. If the issue is with a hot tap, then there’s also the cost that comes with heating that wasted water. 

Beyond this, there are also health hazards that come with pooling water, such as the growth of mould. In extreme cases, leaky taps can cause flooding in the home, which can lead to structural damage, and if near electrical outlets, can become a fire hazard. 

What can cause a leaky tap?

Several factors can lead to a tap becoming damaged and leaking, some of the most common include: 

  • Worn tap washers or O-rings: One of the most common causes of leaky taps is damage to the washer or O-ring that is there to provide a seal.
  • Poorly installed taps: Another common culprit is simply taps that have been poorly installed.
  • Corroded valve seats: This is the point where the tap and spout connect. Over time, mineral deposits and corrosion can build up, something particularly common in areas with hard water. 
  • Water pressure: In some cases, excessive water pressure can cause leaks by causing damage to the tap. 

How can I fix a leaky tap?

Fixing a leaky tap is something that most people can do themselves by following the below steps. 

  1. Turn off your water supply using either an isolation valve or stopcock. Once done, run your taps to ensure the pipes are completely cleared of water.
  2. Locate the screw and unscrew. This is usually located under the heads of the hot and cold taps.
  3. Disassemble your tap, placing each component to one side in the same order — this will make reassembling much easier. 
  4. Check both the washer and cartridge for signs of damage and replace if necessary.
  5. At the bottom of the spout, you’ll find the O-ring, check this for damage and replace if needed. 
  6. Before you reassemble, check the condition of the tap seat which is inside the main body of the tap. Clear out any debris, and if damage is visible, you can use a tap reseating tool to smooth the surface. 
  7. Put the tap back together in the same order you took it apart. 

When should you call a plumber?

If you have tried all of the above and the leak persists, it’s time to call a plumber. 

In cases of major leaks, it’s also best to call a plumber as soon as possible to prevent further damage being caused to your home. 

Want to know more about DIY plumbing? 

Being able to carry out simple household plumbing tasks like fixing a leaky tap can help save on both time and money. An introductory plumbing course is a great way to pick up these basic skills, and can help you tackle other similar jobs like fixing a U-bend, tiling, replacing bathroom sealant, fixing broken pipes and more.