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Top Reasons Of Tap Leaking And How To Fix Them Quickly

A leaking tap is a common issue that can cause significant water wastage and potential damage to your property. Understanding why taps leak and knowing how to fix them can save time and money. Which is why we have written this guide to help you in this tough situation. But we also understand if you’re facing a major leak or pipe failure, you won’t have the time to read a complete blog for quick fixes. Rather, you should reach out to local experts who can carry out an investigation and ensure lasting repairs. Our expert plumbers are there for you. Call 0208 050 2707 or email today.

“Got a leaking tap at your home or business in Bromley? Reach out to Bromley Plumbers LTD. We will conduct a thorough investigation and offer prompt yet efficient solutions!”

Top Reasons For Tap Leaking

1. Worn Out Washer

Washers are small rubber components that seal the tap to prevent leaks. Over time, they wear out due to the constant friction and pressure of water flow. This wear and tear cause them to become less effective, resulting in drips. Regular use accelerates this process and makes washer replacement one of the most common fixes for a leaking tap.

2. Damaged O-Ring

The O-ring is a small rubber ring located in the stem screw that holds the tap handle in place. If it becomes damaged or worn out, it can cause leaks around the base of the handle. This is particularly common in cartridge taps, where the O-ring endures significant stress from frequent use.

3. Corroded Valve Seat

The valve seat is the connection point between the tap and the spout. Over time, mineral deposits from water can accumulate and cause the valve seat to corrode. This corrosion leads to an imperfect seal, letting water to leak through.

4. Loose Parts

Over time and with frequent use, the various nuts, screws, and washers within a tap can become loose. This can result in leaks at the base or spout of the tap. In some cases, worn parts may need to be entirely replaced to ensure a proper seal.

5. High Water Pressure

Excessively high water pressure can strain the components of your tap, causing them to wear out more quickly and leading to leaks. This can damage washers, O-rings, and other seals and result in persistent drips.

6. Cartridge Problems

Mixer taps use cartridges to control water flow and temperature. If these cartridges become damaged or worn, they can cause leaks. Issues such as inconsistent water temperature or difficulty in turning the tap on and off can indicate cartridge problems.

7. Worn Seals

Taps have various seals within them to prevent water leakage. Over time, these seals can become ineffective due to constant exposure to water and pressure. And when seals become ineffective, leaks can occur at various points of the tap.

8. Improper Installation

A poorly installed tap can lead to leaks from the start. Incorrect installation can leave gaps or improperly secured components that allow water to escape. Ensuring that taps are installed professionally, following manufacturer guidelines, is crucial to prevent leaks. If you suspect installation issues, it may be necessary to have the tap reinstalled by a professional plumber to ensure a proper seal.

How To Fix A Leaking Tap: 8 Pro Tips

1. Turn Off Water Supply

Before attempting any repair, it is crucial to turn off the water supply to the tap. This prevents water from flowing while you work, avoiding potential flooding and making the repair process safer and easier. Locate the isolation valve under the sink or turn off the main water supply. Open the tap to drain any remaining water in the pipes to ensure a dry working area.

2. Replace Washer

A worn-out washer is a common cause of leaks. To replace it, first, dismantle the tap using a spanner or wrench. Remove the old washer from the valve seat and replace it with a new one of the same size and type. Reassemble the tap, ensuring all components are tightened correctly.

3. Fix The O-Ring

If water is leaking around the tap handle, the O-ring might be damaged. Turn off the water supply and disassemble the tap handle to access the O-ring. Remove the old O-ring using a screwdriver or a similar tool. Now, replace it with a new one of the correct size and reassemble the tap.

4. Clean Or Replace Valve Seat

Corrosion on the valve seat can cause leaks. Disassemble the tap to access the valve seat. Use a valve seat wrench to remove it. Clean the seat thoroughly with a seat-dressing tool to remove any mineral deposits. If the valve seat is too corroded, replace it with a new one. This maintenance ensures a smooth surface for the washer to seal against, preventing leaks.

5. Tighten Loose Parts

Carefully check and tighten all nuts, screws, and washers using appropriate tools. Ensure each part is securely fastened, but avoid over-tightening, which can cause damage. If parts are damaged, replace them to maintain an effective seal. Seek professional help to avoid further damage.

6. Check Water Pressure

Use a pressure gauge to check the water pressure in your plumbing system. If it is above the recommended level, consider installing a pressure-reducing valve. This device helps to manage and maintain optimal water pressure.

7. Replace Cartridge

In mixer taps, a faulty cartridge can cause leaks. To replace it, turn off the water supply and disassemble the tap to access the cartridge. Remove the old cartridge and replace it with a new one that matches your tap model. Finally, reassemble the tap, ensuring all parts are properly aligned and secured.

8. Seek Professional Help

If the leak persists or the repair seems too complex, seeking professional help is advisable. Qualified plumbers have the expertise and tools to diagnose and fix leaks efficiently. More importantly, they can address underlying issues that might not be apparent. This ensures a thorough and lasting solution. Hiring a professional also saves time and prevents potential damage caused by improper DIY repairs.

Bromley Plumbers LTD For Prompt And Professional Help

If you discover a water leak in your home, let us ensure prompt and efficient repairs. Our team provides expert leak detection and plumbing services, ready to tackle emergencies swiftly. With over 100 years combined plumbing experience, we possess the expertise to handle problems of any size. Rest assured – we don’t charge a call-out fee, and our initial hour, which is chargeable, is dedicated to a thorough investigation to effectively address your needs. We undertake the job only when we’re confident that we can fix the issue. This saves you from paying a hefty call-out fee. Trust us for professional plumbing repairs in Bromley, and rest assured that a specialist will find the source of the issue and implement a reliable solution. Call 0208 050 2707 now.


A leaking tap, though common, should not be ignored. Understanding the causes and knowing how to fix them can save you from potential water damage and high utility bills. For those in Bromley and its surrounding areas, Bromley Plumbers LTD offers reliable and prompt plumbing services to tackle any leak effectively. Trust our experts to keep your taps in top condition. Contact us today.

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