Leaking Tap Repair Guide for Corsham Homeowners

Published July 2026 | Leaking Tap Repair Guide

How Long Should a Tap Last and What Affects That

Tap lifespan varies enormously depending on the type of tap, the quality of the original unit, how heavily it gets used, and - critically for properties in Corsham and the wider Wiltshire area - the local water hardness. Understanding what drives wear helps you catch problems before a minor drip turns into a full replacement job.

There are broadly three types of tap mechanism you will encounter in UK homes:

Traditional rubber-washer taps are the round-headed pillar taps found in older UK properties. They work by pressing a rubber washer against a brass seat to stop water flow. Washers degrade over time, especially in areas where the water is slightly harder. In and around Corsham, the water supplied through Thames Water and Wessex Water tends to sit in the moderate to moderately hard range, which accelerates washer wear compared to softer water areas. Expect a washer to need replacing every five to eight years under normal use.

Ceramic disc taps became common in UK homes from the 1990s onwards and are now the default in most new builds. Instead of a rubber washer, they use two ceramic discs that rotate against each other to control flow. Ceramic is far harder than rubber, so these mechanisms resist wear better. With decent water quality and no overtightening, ceramic cartridges commonly last 15 to 25 years. The weak point is grit or limescale, which can crack or score the ceramic surfaces.

Mixer taps and monobloc taps usually use a ceramic cartridge internally but also rely on O-rings to seal the spout and body. The O-rings are typically the first thing to fail, causing leaks at the base of the spout rather than a drip from the nozzle. These can wear out in as little as eight to ten years in a busy kitchen.

Beyond tap type, three other factors significantly shape how long your taps last. Water pressure matters more than most homeowners realise - properties with consistently high mains pressure above 3 bar tend to wear tap internals faster. Installation quality is the other big variable. A tap that was not seated correctly from the start, or that has been overtightened repeatedly over the years, can fail well before its expected service life. Finally, the frequency of use means a bathroom tap used twice a day will outlast a kitchen tap cycled dozens of times daily.

The Maintenance That Actually Makes a Difference

Most leaking taps are not the result of catastrophic failure. They are the result of years of small, avoidable wear that nobody got around to addressing. The maintenance tasks below are things our engineers recommend to homeowners across Corsham and Wiltshire, and they genuinely extend tap life.

Replace rubber washers proactively, not reactively. Waiting until a tap drips before replacing the washer is the most common maintenance mistake. By the time you see a drip, the washer has often worn hard into the valve seat, and repeated contact between the worn washer and the seat can damage the brass. Replacing a washer every five to seven years as a preventive measure costs very little and keeps the seat in good condition. For a plumber to replace a washer on a standard tap in the Corsham area, expect to pay in the region of 60 to 100 pounds including labour, depending on access.

Lubricate O-rings on mixer taps. O-rings are silicone or rubber sealing rings used throughout mixer tap bodies. Applying a small amount of silicone grease to O-rings when a tap is apart for any reason costs almost nothing and significantly extends their life. Do not use petroleum-based grease, which degrades rubber.

Clean aerators every six months. The aerator is the small mesh screen screwed into the tap nozzle. It accumulates limescale and debris, and when blocked, it forces water pressure to back up through the tap body, increasing stress on internal seals. Unscrewing the aerator and soaking it in a descaling solution for 30 minutes every six months is quick work you can do yourself.

Descale the tap body in hard water areas. Even moderate water hardness causes limescale to build up around cartridge housings over time. This scale can lock cartridges in place and cause them to crack when you try to operate the tap. If you live in a property that sees visible limescale on shower heads or kettle elements, treat your taps with a proprietary descaler once a year.

Test your isolation valves annually. Each tap is fed by an isolation valve, usually under the sink or basin. These are the small valves with a screw slot that you turn 90 degrees to isolate the tap for maintenance. If you never use them, they seize. Our engineers have attended many Corsham properties where an emergency repair was complicated simply because no one could isolate the water supply. Turn each isolation valve off and back on once a year to keep them moving freely.

Warning Signs It Is Reaching End of Life

Knowing when to repair versus when to walk away from a tap saves money in the long run. These are the signs our engineers look for:

Dripping after a new washer has been fitted. If a tap continues to drip even after a fresh washer is installed, the valve seat is likely damaged or pitted. A seat can sometimes be re-cut using a seat grinder, but this is a specialist job. If the seat cannot be salvaged, the tap body itself needs replacing.

Stiff, notchy, or grinding operation. A ceramic disc tap should turn smoothly with light resistance. If it feels gritty or notchy, the ceramic discs are likely scored or contaminated with scale or grit. Once ceramic discs are cracked or scored, they cannot be polished back to function - the cartridge needs replacing.

Visible corrosion or pitting on the tap body. Chrome and brass tap bodies are durable, but they are not immune to corrosion, particularly in properties with slightly acidic water or where taps have been stored in damp conditions before fitting. Surface corrosion around joints can indicate internal corrosion of the sealing faces.

Leaking from the body of the tap, not the nozzle. A drip from the spout is usually a washer or cartridge. Water appearing from the base of the spout, from around the handle, or from the gland nut area typically indicates O-ring failure or gland packing wear. These are repairable but if the tap body itself is cracked or corroded through, repair is not viable.

Persistent leaks after multiple repairs. If you or a plumber have replaced the washer twice in three years and the tap still drips, the underlying valve seat or cartridge housing is usually compromised beyond economical repair.

Repair vs Replace - The Honest Calculation

The repair-or-replace decision comes down to a simple comparison: the cost and likely success of the repair versus the cost of a new tap and fitting.

For a straightforward washer or O-ring replacement, repair almost always wins. The parts cost pennies, and a plumber's labour charge in the Wiltshire area for this kind of work typically runs from 60 to 90 pounds. A new budget tap fitted by a plumber will typically cost 100 to 180 pounds all in, including the tap itself. So repair is clearly the better option if it is likely to hold for another five or more years.

Ceramic cartridge replacement is slightly more expensive but usually still worthwhile. A replacement cartridge for a common mixer tap typically costs 15 to 45 pounds for the part, with a plumber's labour bringing the total to roughly 80 to 140 pounds. A like-for-like mid-range mixer tap fitted new would cost 150 to 300 pounds. Again, repair wins unless the tap body itself is damaged.

The calculation shifts when the tap is old, a discontinued model, or already showing multiple points of wear. If you need a cartridge and the spout O-rings are also failing and the isolation valve is seized, you are looking at several separate repair costs adding up. At that point, spending 150 to 250 pounds on a quality new tap and fitting is usually the more economical choice over the following five years.

Our engineers use the Voltrade GoFIX diagnostic process to work through exactly this kind of assessment on-site. Rather than guessing what needs doing, we identify the specific failure point first, cost up the repair, and give you an honest comparison against replacement before any work starts. This avoids the frustration of paying for a repair that solves one leak only for another to appear two months later.

Annual Service - What It Should Include

Most homeowners do not think of taps as something that needs a scheduled service in the way a boiler does. But an annual check-over, particularly for mixer taps and taps on older properties in Corsham, pays for itself in avoided emergency call-outs.

A proper annual tap check should cover the following:

1. Washer and cartridge inspection. Check for wear or deformation on rubber washers. Test ceramic cartridges for smooth operation and check for any gritty feel that indicates scoring.
2. O-ring condition. Inspect visible O-rings for cracking, flattening, or swelling. Apply fresh silicone grease where needed.
3. Gland nut and packing check. On older taps, the gland nut seals around the spindle. This packing material wears over time and may need tightening or replacing to prevent leaks around the handle.
4. Isolation valve operation. Test each tap's isolation valve for free movement. Lubricate if stiff.
5. Aerator clean. Remove and descale the aerator screen.
6. Water pressure check at the tap. Unusually high or low pressure at a specific tap can indicate a partially closed valve or a pressure issue affecting the whole supply.
7. Visual inspection of supply flexi-hoses. The braided flexible hoses connecting taps to the supply pipework have a typical lifespan of around ten years. Inspect for kinks, corrosion at the fittings, or swelling of the inner hose, which can precede a catastrophic failure.

In Wiltshire, where a number of older properties have a mix of original copper pipework and more recent plastic supply hoses, checking the condition of those flexi-hoses is particularly important. A burst flexi-hose under a sink is one of the most common causes of significant water damage to kitchen units and flooring.

Simple Habits That Extend the Life by Years

Beyond scheduled maintenance, the day-to-day way you use your taps has a real effect on how long they last.

Do not overtighten taps when turning them off. This is the single most damaging habit in UK households. People overtighten taps to stop a drip, which simply accelerates washer and seat wear and eventually makes the drip worse. A tap should close with firm but light pressure, not by leaning your full weight on the handle.

Fix a drip within days, not months. A single dripping tap can waste several litres of water a day. More importantly from a maintenance standpoint, a dripping tap means water is continuously running across the valve seat. This constant contact erodes the seat faster than normal use would. The longer a drip is left, the more expensive the eventual repair becomes.

Avoid using chemical drain cleaners near taps. Products containing caustic soda or sulphuric acid, used to clear blocked drains, are corrosive to both chrome plating and rubber tap components. If using a chemical cleaner in a sink, protect the tap fittings and rinse the basin thoroughly afterwards.

Use tap inserts on outdoor taps in winter. Properties in Corsham are not immune to the freezing temperatures that Wiltshire can see in January and February. Outdoor taps left unprotected can freeze, and the expansion of ice inside the tap body can crack the body or split the supply pipe just behind it. Fitting a tap cover and, where possible, isolating and draining outdoor taps through the winter prolongs their life significantly.

Keep cleaning products off chrome fittings. Many common bathroom cleaners, particularly those containing bleach or limescale removers, will damage chrome plating if left in contact for more than a few minutes. Clean tap bodies with a soft cloth and mild soap, and rinse quickly with clean water.

Maintenance Questions

How much does it typically cost to fix a dripping tap in Corsham?

For a standard dripping tap where the washer or ceramic cartridge needs replacing, the total cost in the Corsham area typically runs between 60 and 120 pounds including a plumber's labour and parts. More complex repairs, such as re-cutting a damaged valve seat or replacing the entire tap body, will cost more, commonly 100 to 180 pounds. Getting the fault diagnosed correctly first means you only pay for what the tap actually needs.

Can I replace a tap washer myself without calling a plumber?

Yes, replacing a rubber washer is within reach for a competent DIYer who can isolate the water supply and is comfortable working with basic hand tools. You will need to turn off the tap's isolation valve or the mains stopcock, drain the supply, and remove the tap head to access the washer. The parts cost very little. However, if the valve seat is damaged, or you are not confident working with water supplies, a plumber avoids the risk of worsening the problem or causing a flood.

Why does my tap drip even after I replaced the washer?

If a tap still drips after a new washer is fitted, the valve seat is likely worn or pitted. Over years of use, and especially if a drip was left unattended for a long time, the metal seat that the washer presses against becomes roughened. Water then finds its way past even a fresh washer. A plumber can sometimes re-cut the seat with a seat grinder tool. If the seat is beyond repair, the tap body itself needs replacing.

How do I know if my tap is worth repairing or if I should replace it?

The key factors are age, the cost of the specific repair needed, and whether there are multiple points of failure. If the tap is under ten years old and needs a single washer or cartridge, repair is almost always the better option financially. If the tap is over 20 years old, parts are difficult to source, or you have already had it repaired more than twice in recent years, replacing the tap usually makes more sense over the following five to ten years.