How to Fix a Leaking Tap: Causes, Repairs & Tools

A leaking tap is one of those small problems that is easy to ignore at first. You hear the occasional drip. You tell yourself you'll deal with it later. A few days pass, and the dripping is still there. Then it starts getting annoying, especially at night when the whole house is quiet.

The good news is that many common tap leaks can be fixed without replacing the entire tap. Sometimes, the problem is simply a worn washer, a damaged O-ring or a cartridge that needs replacing.

Before you start, it helps to understand where the water is coming from and what type of tap you have. This can save you from taking apart parts that don't actually need attention.

Why Is My Tap Leaking?

Not every tap leak happens for the same reason. Water dripping from the spout usually points to an issue inside the tap. On the other hand, water appearing around the handle or base may mean that a seal or O-ring has worn out.

Over time, the small parts inside a tap deal with constant movement and water pressure. Eventually, some of them wear down.

Here are a few common reasons:

• A washer has become worn or damaged
• The tap cartridge needs replacing
• An O-ring or seal has deteriorated
• A valve has become loose or damaged

The first step is finding the source of the leak. Once you know that, the repair becomes much easier.

Turn Off The Water Before Starting Any Tap Repair

Before taking anything apart, turn off the water supply.

This is an important step. It might sound obvious, but forgetting it can turn a small repair into a very wet problem. Look underneath the basin for the isolation valves connected to the tap. Turn them off before you begin. If your tap does not have individual isolation valves, you may need to turn off the main water supply.

Once the water is off, open the tap and allow any remaining water in the pipes to run out.

Keep a small towel nearby too. There will usually be a little water left inside the tap or connecting pipes.

Fixing A Leaking Tap With A Worn Washer

Older taps often use a washer inside the valve to control the flow of water.

After years of use, this small rubber part can wear down. When that happens, the tap may continue dripping even when it is fully closed.

The repair is usually quite simple:

• Turn off the water supply and open the tap to release any remaining water
• Remove the decorative cap and unscrew the handle
• Take out the valve and locate the washer
• Replace the old washer with one of the same size before putting the tap back together

Take the old washer with you when buying a replacement if you are unsure about the size.

A washer is a small part, but it can make a big difference. If the tap is otherwise in good condition, replacing it may be all that is needed to stop the leak.

Replacing A Damaged Tap Cartridge

Many modern taps use a cartridge instead of a traditional washer.

This is common in mixer taps, where the cartridge helps control both the water flow and temperature.

If water continues dripping from the spout after the tap is closed, the cartridge could be the problem. You might also notice that the handle feels stiff or that controlling the temperature has become difficult.

To replace it:

• Turn off the water supply
• Remove the handle and any cover around the cartridge
• Carefully take out the old cartridge
• Check the model or part number if available
• Fit a matching replacement cartridge and reassemble the tap

It is important to use the correct cartridge for your particular tap. They can look similar but may not fit in the same way.

If you're not sure which one you need, taking the old cartridge to a plumbing supplier can make things easier.

Fixing A Leak Around The Tap Handle

Sometimes the tap doesn't drip from the spout at all. Instead, water appears around the handle when you turn the tap on.

In many cases, this is caused by a worn O-ring or internal seal. The basic process is similar to other repairs. Turn off the water, remove the handle and inspect the parts underneath.

Look for rubber rings that appear cracked, flattened or damaged. Replacing the affected seal can often stop the leak.

It is also worth checking whether any parts have become loose. A connection that has worked its way loose over time can sometimes cause water to escape around the tap.

Avoid tightening parts too aggressively, though. Too much force can damage threads or other components.

What Tools Do You Need To Fix A Leaking Tap?

You don't usually need a large collection of tools for a basic tap leak repair.

For many jobs, a few simple items are enough:

• An adjustable spanner
• A screwdriver
• Replacement washers or seals
• A replacement cartridge, if needed

A cloth or old towel is also useful for protecting the basin and catching any small parts.

Before starting, take a quick look at the tap and try to understand how it comes apart. There is no need to rush.

Keeping the parts in the order you remove them can also save time when putting everything back together.

Check For Other Signs Of Water Leakage

A dripping tap is easy to spot.

Other types of water leakage can be less obvious.

Check around the base of the tap, underneath the basin and around the connecting pipes. A small amount of water can sometimes travel along a pipe before becoming visible somewhere else.

You might notice:

• Damp patches inside the vanity unit
• Water collecting around pipe connections
• Rust or staining on fittings
• A musty smell caused by ongoing moisture

Finding these issues early can help prevent a small leak from becoming a bigger plumbing problem.

If you notice water coming from a pipe connection, try to identify whether the connection is simply loose or whether a washer or seal has failed.

When Should You Repair Or Replace A Leaking Tap?

Not every leaking tap needs to be replaced.

If the problem is a washer, seal or cartridge, a simple repair may give the tap plenty more years of use.

However, replacement can make more sense in some situations:

• The tap has started leaking repeatedly
• Several parts are worn or damaged
• The tap is badly corroded
• Replacement parts are difficult to find

Think about the overall condition of the tap.

If it is still working well and you can easily get the right replacement part, repairing it is usually the sensible option.

If you are constantly dealing with new problems, replacing the tap may save you time and effort in the long run.

A Few Simple Ways To Prevent Future Tap Leaks

You can't prevent every tap problem, but a little care can help.

Try not to force the handle when turning the tap off. Closing it too tightly can put extra pressure on the internal parts.

It is also a good idea to deal with small leaks early. A tap that starts dripping occasionally is often easier to repair than one that has been ignored for months.

You can also:

• Check taps and pipe connections from time to time
• Clean around the base of the tap so leaks are easier to spot
• Replace worn parts before they cause further damage
• Use the correct replacement parts for your tap

Regular checks only take a few minutes and can help you spot a problem before it becomes more serious.

Conclusion

A leaking tap can be frustrating, but the cause is often simpler than it first appears. Whether the problem is a worn washer, damaged seal or faulty cartridge, identifying where the water is coming from is the best place to start.

For more serious water leakage, damaged plumbing or repairs you are not comfortable handling yourself, calling a qualified plumber is always the safer option.

If you're replacing an old tap rather than repairing it, choosing a well-designed and reliable fitting can make a difference over time. Jaquar offers a range of bathroom taps designed for everyday use, with styles that can suit different bathroom spaces and interiors.

FAQs

Why is my tap leaking?

A tap may leak because of a worn washer, damaged cartridge, loose parts or a faulty seal. The exact cause often depends on where the water is coming from.

Can I fix a leaking tap myself?

Yes, minor leaks can often be fixed by replacing a washer, O-ring or cartridge. However, if the problem continues, it is best to contact a plumber.

What tools are needed to repair a leaking tap?

You may need an adjustable spanner, screwdriver, Allen key and replacement parts such as a washer or cartridge. Always turn off the water supply before starting.

Should I repair or replace a leaking tap?

A simple issue, such as a worn washer or cartridge, can usually be repaired. If the tap is old, badly damaged or leaking repeatedly, replacing it may be the better option.

How can I prevent taps from leaking?

Regular cleaning and checking for loose parts can help prevent leaks. Avoid forcing the tap handle too tightly, as this can wear out internal components over time.