Leaking Tap Repair in Weymouth - A Homeowner's Guide to Fixing the Drip

Published September 2026 | Leaking Tap Repair

You wake up at 3am and hear it - that faint but persistent drip coming from the bathroom. By morning you've already counted hundreds of drops and worked out you're watching money disappear down the plughole. If this sounds familiar, you're not alone: a dripping tap is one of the most common plumbing jobs our engineers attend across Weymouth and the surrounding Dorset area, and in most cases it's entirely fixable without replacing the whole tap.

Understanding What's Actually Happening When a Tap Leaks

A leaking tap isn't just annoying - it's a symptom of a specific mechanical failure inside the fitting. Understanding the difference matters, because the wrong fix wastes time and money.

Most taps work by using a component to press against a seat and stop water flow when you turn the handle off. Over time, that component degrades, warps, or cracks. Water finds any gap and exploits it. The result is either a steady drip from the spout, a leak around the base of the handle, water seeping from around the tap body itself, or in worse cases, water pooling on the worktop or under the sink.

Where the water is coming from tells our engineers a great deal before they've even touched the tap. A drip from the spout typically points to a failed internal component - a washer, cartridge, or ceramic disc. Water escaping from around the handle or stem usually means worn O-rings or a loose packing nut. Leaks from the base of the tap where it meets the sink suggest the tap hasn't been seated properly or the seal beneath it has perished.

One thing worth knowing: a tap that drips once per second wastes roughly 5,000 litres of water per year. That's not a trivial amount - and with Dorset water rates, it adds meaningfully to your bills over time. Getting it fixed isn't just about the noise.

The Most Common Causes of a Leaking Tap

There are five culprits responsible for the vast majority of leaking taps our plumbers deal with in Weymouth. Each has its own tell-tale signs.

A Worn or Damaged Washer

Washers are the most commonly replaced part in traditional pillar taps and older mixer taps. Every time you turn the tap off, the rubber washer is pressed hard against the valve seat to create a watertight seal. Do that tens of thousands of times over the years and the washer flattens, hardens, or develops cracks. Once it can no longer form a consistent seal, you get a drip from the spout.

This is more common in older properties around Weymouth - particularly Victorian and Edwardian terraced houses where original or period-style taps have been retained. Washers are inexpensive parts, but getting to them requires isolating the water supply and partially dismantling the tap head, which puts some homeowners off attempting it themselves.

A Failed Ceramic Disc or Cartridge

Modern quarter-turn taps and most single-lever mixer taps use ceramic disc cartridges rather than traditional washers. These are generally more durable, but they're not immune to failure. Grit and mineral deposits in the water supply - particularly relevant if your home is in a hard water area - can score the ceramic surface and allow water past. Cartridges can also crack if the tap is operated forcefully or if there's been a water hammer event on the supply line.

A cartridge failure often produces a slow but continuous drip that doesn't stop even when the tap appears to be fully closed. In some cases the handle becomes harder to turn as the cartridge deteriorates. Replacement cartridges vary in cost depending on the tap manufacturer - budget around 15 to 60 pounds for the part itself, with brands like Hansgrohe, Grohe, and Bristan being among the more commonly found in Dorset homes.

Worn O-Rings

O-rings are small rubber rings that sit on the tap spindle and create a seal around the moving parts. When they perish - which they typically do over years of use and exposure to cleaning chemicals - water leaks from around the handle or the base of the spout rather than from the spout tip itself.

This type of leak is easy to misread. Homeowners often think the tap body itself is cracked, but in most cases swapping the O-rings sorts it completely. O-rings are cheap, but the fiddly nature of reaching them means this is a job where having the right tools makes a real difference.

A Corroded or Damaged Valve Seat

The valve seat is the point inside the tap body where the washer or disc presses to close the water flow. If sediment or mineral deposits accumulate on the seat, they prevent the washer from making full contact and you get a persistent drip that a new washer alone won't fix. In older properties with iron pipework, corrosion can pit the seat surface, making the problem worse over time.

Valve seat damage is one reason why a DIY washer replacement sometimes doesn't cure the drip. The new washer seats on an irregular surface and the leak continues. Our engineers use a valve seat grinder or dresser to resurface the seat - a step that's often overlooked but makes the difference between a lasting repair and a recurring problem.

A Loose Packing Nut or Gland

On older-style taps, a packing nut or gland nut holds the spindle in place and keeps it watertight. These can work loose over years of use, allowing water to travel up the spindle and out from around the handle. Tightening or repacking the gland is typically the quickest fix of all - sometimes it takes less than ten minutes - but it's easy to overtighten and crack the fitting if you don't know what you're doing.

Solutions That Actually Work

The right solution depends entirely on what's causing the leak. There's no universal fix, which is why it's worth spending a few minutes diagnosing the problem before reaching for the toolbox.

For a traditional pillar tap with a dripping spout, the usual process is:

1. Isolate the water supply to that tap using the relevant service valve under the sink or the stopcock.
2. Remove the tap handle (typically held by a screw under the hot/cold indicator cap).
3. Use a spanner to remove the packing nut and draw out the headgear assembly.
4. Unscrew the washer from the bottom of the jumper and replace it with a new one of the same size.
5. Inspect the valve seat and, if pitted or rough, resurface with a seat grinder before reassembling.
6. Reassemble, restore the water supply, and test.

For a cartridge-based mixer tap, the process is similar but the cartridge assembly comes out as a single unit once the handle is removed. The key here is sourcing the correct replacement cartridge for your specific tap model - bringing the old cartridge to a plumbers' merchant or photographing the model number on the tap body makes this much easier.

O-ring replacement follows the same disassembly steps but focuses on removing and replacing the rubber rings on the spindle and around the spout base. Using a thin smear of silicone grease on the new O-rings before reassembly extends their working life significantly.

One tool that helps with diagnosing where exactly a leak is originating - particularly for hidden leaks or slow weeps that are difficult to trace - is the Voltrade GoFIX diagnostic tool. Our engineers use it to identify the source before committing to a specific repair approach, which avoids unnecessary dismantling and speeds up the job.

When You Need a Professional vs Sorting It Yourself

Some tap repairs are well within the capabilities of a confident DIYer. Others really aren't, and getting them wrong can turn a minor drip into a more serious plumbing problem.

You can reasonably attempt a repair yourself if:

• You can isolate the water supply to that tap without affecting the rest of the house.
• The tap is a standard, accessible fitting - not mounted in a confined space or integrated into a complex system.
• You've done basic DIY plumbing before and have the right tools (at minimum an adjustable spanner, screwdrivers, and PTFE tape).
• The problem is clearly a worn washer or loose gland nut on a traditional tap.

Call a plumber if any of the following apply:

• You can't locate or operate the isolation valve - forcing a tap repair without isolating the supply can result in water spraying across the room when the tap is opened.
• The tap is leaking from the pipework connections rather than the tap body itself.
• You've replaced the washer and the drip continues - this often means valve seat damage that needs specialist tools.
• The tap is more than 20-25 years old and parts aren't readily available.
• There's visible corrosion or scale build-up on the pipework feeding the tap.
• The leak has caused water damage to the cabinet under the sink, the wall, or the floor - in those cases you may also need to assess for secondary damage.

In Weymouth, older properties in areas like Chapelhay and the town centre frequently have original or near-original plumbing that requires careful handling. What looks like a simple drip can sometimes reveal broader issues with the supply pipework once you get into it.

What to Expect From a Repair Visit

If you decide to book a plumber, knowing what typically happens helps you prepare and avoids surprises on the day.

Most leaking tap repairs in Weymouth are completed in a single visit lasting between 45 minutes and two hours, depending on the complexity of the job and whether parts need to be sourced. Our engineers carry a stock of the most commonly needed washers, O-rings, and cartridges, which resolves the majority of jobs on the first call without a return visit.

Before the engineer arrives, it's worth clearing out the cabinet under the sink to give clear access to the isolation valves and pipework. Know where your main stopcock is as well - typically under the kitchen sink or near the water meter - in case the isolation valve for that tap isn't working or accessible.

On arrival, the engineer will inspect the tap, identify the fault, and confirm the repair approach before starting work. They'll isolate the supply, carry out the repair, test the tap fully (including checking for drips at the spout, around the base, and from the connections underneath), and restore your supply before leaving.

In terms of cost, a straightforward washer or O-ring replacement in Weymouth typically costs between 60 and 120 pounds including parts and labour. A cartridge replacement, which takes slightly longer and involves a more expensive part, commonly runs between 90 and 180 pounds. If the tap itself needs replacing - either because parts are unavailable or because the body is too corroded to repair reliably - you're looking at 150 to 300 pounds or more depending on the tap you choose, with labour on top if you're supplying the tap yourself.

These are general ranges based on typical jobs across Dorset - actual costs vary depending on tap type, access, and whether any complications emerge during the repair.

Common Questions From Weymouth Homeowners

How much does a leaking tap repair cost in Weymouth?

Most leaking tap repairs in Weymouth cost between 60 and 180 pounds depending on what's failed and the type of tap involved. A basic washer replacement at the lower end, a cartridge swap in the middle, and full tap replacement at the top. Parts are typically included in the quote, but it's worth confirming this when booking. Labour rates across Dorset for plumbing call-outs generally start around 60 to 80 pounds per hour, with many engineers charging a fixed call-out fee for standard repairs.

Can a dripping tap cause damage to my home?

Yes, and more commonly than homeowners expect. A persistent drip that runs down the inside of the tap base or weeps from a connection under the sink can saturate the cabinet floor, swell the chipboard, and in time create damp conditions that encourage mould growth. In bathrooms, water tracking along grout lines or under sealant around the bath or basin can reach the subfloor. Getting a dripping tap fixed promptly is almost always cheaper than dealing with the secondary damage that can follow if it's left.

How long does a tap repair typically take?

The majority of tap repairs our engineers carry out in Weymouth take between 45 minutes and an hour and a half. Simple washer or O-ring replacements on accessible taps are at the quicker end. Jobs where the isolation valve isn't working, the tap body is heavily scaled, or the valve seat needs resurfacing take longer. If a non-standard cartridge needs to be sourced, the repair may be completed in two visits - one to diagnose and order the part, one to fit it.

Is it worth repairing an old tap or should I just replace it?

It depends on the age and condition of the tap. If the tap is under 15 years old, in reasonable condition, and the fault is a worn washer or cartridge, repair nearly always makes more sense economically. For taps that are older, corroded, or where replacement parts are difficult to source, a new fitting is often the better long-term investment. Our engineers will give you an honest assessment on the day - there's no value in spending 100 pounds on a repair that's likely to fail again within a year on a worn-out fitting.