How to Fix a Leaking Tap in Dewsbury

Published July 2026 | Leaking Tap Repair Guide

This guide walks you through diagnosing and repairing a leaking tap at home, covering both traditional pillar taps and modern ceramic disc taps. It's aimed at confident DIYers who want to tackle the job themselves before deciding whether to call a plumber.

Before You Start - Safety First

Water and improvised repairs are a combination that can make a small problem considerably worse. Before you touch anything, take a moment to locate your stopcock - the valve that controls the water supply to your property. In most Dewsbury homes it's under the kitchen sink, but in older terraced properties across West Yorkshire you'll sometimes find it in the cellar or near the front door. Know where it is before you start, not after water is spraying across your bathroom.

A few important checks before you begin:

• Make sure the stopcock actually turns. In older properties these can seize up. Give it a test turn now. If it's stuck, don't force it - you risk snapping the valve. Apply a little penetrating oil and come back to it after 20 minutes.
• Turn off your boiler if you're working on a hot tap. Working on a pressurised hot water system without doing this can result in scalding water when you loosen fittings.
• Put a towel or a bowl in the sink before you start. Residual water in the pipes will come out when you remove the headgear.
• If your home uses a water meter, note the reading. A sudden jump after the repair confirms a new leak somewhere in the system.

What You Will Need

Tools

• Adjustable spanner (a 12 inch one covers most tap sizes)
• Flathead screwdriver
• Cross-head (Phillips) screwdriver
• Grips or slip-joint pliers
• Craft knife or small pick tool
• Bowl or small bucket
• Old towels

Materials

• PTFE tape (plumber's tape) - available from any hardware shop for under 2 pounds
• Replacement washers (a mixed pack costs 2-4 pounds and covers most sizes)
• O-ring kit (typically 3-6 pounds for a mixed pack)
• Ceramic disc cartridge if your taps use them (varies by manufacturer - typically 8-25 pounds, though branded cartridges for taps like Grohe or Hansgrohe can be 40-80 pounds)
• Silicone grease (a small tube costs around 3-5 pounds and makes reassembly much easier)
• Penetrating oil such as WD-40 for seized components

Time Estimate

Allow 45 minutes to an hour for a first attempt on a traditional washer-type tap. If you're replacing a ceramic cartridge and you have the right cartridge to hand, it's typically a 30-minute job. Add time if parts are corroded or if you need to make a trip to a plumber's merchant or hardware store in Dewsbury town centre to get the right washer size.

Step-by-Step Instructions

Step 1 - Identify the Type of Tap You Have

Before buying parts, work out what kind of tap you're dealing with. Traditional pillar taps (common in pre-2000 Dewsbury properties) use a rubber washer at the end of a brass spindle. When this washer wears down, the tap drips from the spout. Modern mixer taps and most taps installed since the early 2000s use ceramic disc cartridges instead - two small ceramic discs that seal against each other. These don't use washers at all.

A quick way to tell: traditional taps require multiple turns to go from fully closed to fully open. Ceramic disc taps typically need only a quarter turn. If yours is dripping from the spout, it's almost certainly a worn washer or cartridge. If it's weeping from the base of the spout or around the body of the tap, the culprit is usually a deteriorated O-ring.

Step 2 - Isolate the Water Supply

Turn off the water at the isolating valve under the sink or basin - this is the small slotted screw on the supply pipe that you turn 90 degrees with a flathead screwdriver. If there's no isolating valve, you'll need to turn off at the main stopcock. Open the leaking tap fully to drain any water remaining in the pipe. Don't rush this - let it drain completely before moving on.

Step 3 - Remove the Tap Handle

Most tap handles are held in place by a screw hidden under a decorative cap on top of the tap. Prise the cap off gently with a flathead screwdriver or craft knife - it's usually just a push-fit cover. Undo the screw underneath (typically a cross-head or hex bolt) and lift the handle away. On some older taps the handle simply unscrews anticlockwise without a separate screw.

If the handle is stuck, don't lever against the tap body. Wrap the handle with a cloth and use gentle upward pressure while rocking it slightly. Penetrating oil around the base left for 10-15 minutes usually frees stubborn handles.

Step 4 - Remove the Headgear or Cartridge

With the handle off, you'll see either a hexagonal gland nut (on traditional taps) or a retaining collar/cap (on cartridge taps). Use your adjustable spanner to undo the gland nut anticlockwise. Protect the chrome finish by wrapping the jaws with masking tape or a cloth. Once the nut is off, the headgear spindle lifts or unscrews out of the tap body.

For cartridge taps, there's typically a retaining clip or screw-on collar holding the cartridge in place. Remove this, then pull the cartridge straight out. Note its orientation before you remove it - photograph it with your phone if that helps.

Step 5 - Replace the Worn Component

On a traditional pillar tap, look at the bottom of the spindle. You'll see a rubber washer held in place by a small brass nut. Undo the nut, remove the old washer, and fit the new one. Match the diameter carefully - a washer that's slightly too small won't seat properly and the tap will keep dripping. Tighten the nut finger-tight, then a quarter turn more with pliers.

If the tap is leaking from the body rather than the spout, the O-ring on the spindle itself has gone. These sit in grooves on the spindle and simply pull off. Roll the new one into the groove, making sure it sits flat and isn't twisted.

For a ceramic cartridge, take the old one to a plumber's merchant to match it exactly - cartridges aren't universal and the wrong size won't seal. Fit the new cartridge in the same orientation as the old one.

Step 6 - Reassemble the Tap

Apply a small amount of silicone grease to any O-rings and to the threads of the gland nut before reassembly - this makes it easier to dismantle in future and prevents galling on brass threads. Refit the headgear or cartridge, tighten the gland nut by hand first then snug it up with the spanner. Don't overtighten - you're sealing against a rubber seat, not clamping metal to metal. A firm hand-tight plus a half turn is typically enough.

Refit the handle, replace the decorative cap, and you're almost done.

Step 7 - Restore the Water Supply and Test

Slowly open the isolating valve or the main stopcock. Keep the tap closed as pressure builds. Once the system has re-pressurised (you'll hear it settle), open and close the tap a couple of times to check operation. Leave it running for 30 seconds and look carefully around the base and gland nut for any signs of moisture. Dry the tap body with a cloth first so you can spot any new weeping clearly.

If it's drip-free, the job's done. If there's still a small drip from the spout, the washer or cartridge may need a little more time to seat fully - check again after 24 hours.

What to Do if This Does Not Fix It

If the tap is still dripping after replacing the washer, the valve seat itself may be damaged. The valve seat is the brass surface inside the tap body that the washer presses against. Over time in areas with hard water - and parts of West Yorkshire have moderately hard water - limescale and wear can pit or groove this surface so that even a new washer can't form a proper seal. You can resurface a valve seat with a tool called a tap reseating tool, which costs around 15-25 pounds to buy. It's a DIY-able job but adds another layer of complexity.

If your tap is leaking around the gland nut after reassembly, the gland packing may need replacing. Traditional taps use graphite packing around the spindle; modern taps rely on O-rings. In some older properties in Dewsbury - particularly in the Victorian terraced housing stock - you'll come across taps that predate O-ring designs entirely. Finding compatible parts for these can be difficult.

Our engineers use the Voltrade GoFIX diagnostic tool to cross-reference tap models and manufacturer part numbers, which can save a lot of time when you're dealing with an unusual or older fitting. If you're struggling to identify the cartridge you need, this is worth using before buying a generic replacement that may not seal correctly.

When to Stop and Call a Professional

There are situations where DIY is the wrong call, and knowing when to stop matters more than knowing how to proceed.

Call a plumber if:

• The stopcock won't fully isolate the water supply. Working on live pressurised pipework is not something to attempt without training.
• The tap body itself is cracked or corroded through. No amount of washer replacement will fix a structurally compromised fitting.
• The supply pipes are copper and show signs of corrosion or pinhole leaks near the tap connections. These need proper soldering or push-fit repair, not tape and improvisation.
• Your property has a combination boiler and the tap is on a high-pressure mains-fed system - the pressures involved are higher than in gravity-fed systems and mistakes can cause more significant damage.
• You're in rented accommodation - always check with your landlord first, as carrying out repairs without consent can create liability issues.

A local plumber in Dewsbury will typically charge in the range of 60 to 100 pounds for an hour's callout, with parts on top. A full tap replacement including parts and labour commonly comes to between 150 and 300 pounds depending on the tap specification. If your taps are particularly old or a non-standard size, fitting new isolating valves at the same time is worth discussing - they make any future work considerably easier and add maybe 40-60 pounds to the bill.

Questions About This Process

How do I know if I have a ceramic disc tap or a washer tap?

The simplest test is how far the handle turns. Ceramic disc taps open and close with roughly a quarter turn - 90 degrees. Traditional washer taps need multiple full rotations. If you're still unsure, remove the handle and look at what's underneath. A brass spindle with a hexagonal nut points to a washer tap. A plastic or ceramic cartridge body points to a ceramic disc design. Most taps installed in West Yorkshire homes since around 2000 use ceramic discs.

Why does my tap keep dripping even after I replaced the washer?

The most common reason is a damaged valve seat - the brass surface inside the tap body that the washer presses against. If this surface is pitted or scored from years of use or limescale buildup, a new washer won't seat cleanly and the tap will continue to drip. You can resurface the valve seat with an inexpensive reseating tool, or ask a plumber in Dewsbury to assess whether the tap is worth repairing or better replaced entirely, particularly if it's an older fitting.

Is a dripping tap really worth fixing or should I just replace the whole tap?

A single dripping tap can waste more than 5,000 litres of water per year, which adds meaningfully to your water bill - particularly if you're on a meter. The repair cost is low if you do it yourself, and even a professional repair is modest compared to the ongoing waste. That said, if the tap is more than 15 to 20 years old, the valve seat is worn, and the overall fitting looks tired, replacing the tap entirely often makes more economic sense over a five-year horizon than repeated repairs.