If your tap is dripping, stiff to turn, or struggling to hold its temperature, the cause is usually a worn cartridge or valve, not a tap that needs replacing. The cartridge is the internal part that controls and mixes your hot and cold water, and when it wears, those small faults start to show. A tap cartridge replacement is inexpensive, matches your specific model, and can add years to a tap you already own. This guide covers how to spot the signs, how to find the right part, and when a clean will do the job instead of a replacement.
At House of ENKI, our ideal customer journey is simple. You choose a tap you love. It arrives. It’s installed. It performs beautifully for years, and everybody lives happily ever after.
If we could design taps that never leaked, never wore out, and were never affected by limescale, hard water, debris, pressure changes or the simple passage of time, we absolutely would. Unfortunately, the laws of physics have other ideas.
How to Tell If a Tap Cartridge Needs Replacing
Taps usually give plenty of warning before a part reaches the end of its life. Most modern taps use a ceramic disc cartridge: two hardened ceramic discs that slide across each other to control and mix the water. When those discs wear or scale up, you tend to notice one of the following.
Persistent dripping. A tap or shower that keeps dripping after it is turned off is often the clearest sign that the cartridge or valve is no longer sealing correctly. Before replacing anything, check for limescale or debris, as a clean may resolve it.
Stiff or difficult operation. If a handle becomes harder to turn, feels rough, or needs extra force, limescale build-up or wear inside the cartridge is usually the cause.
Temperature control issues. On thermostatic showers, water that will not hold a steady temperature, or runs unusually hot or cold, can mean the thermostatic cartridge needs servicing or replacing.
Reduced water flow. A noticeable drop in flow often points to limescale or debris in the valve. Cleaning is the first and cheapest thing to try.
Leaks around the handle. Water appearing around the handle or controls, rather than from the spout, is usually a sign that internal seals or O-rings have worn over time.
Clean First, Replace Second
Replacement is not always the first step. Limescale and debris are behind a large share of tap and shower faults, so a thorough clean and descale can often restore normal operation and extend the life of the part you already have.
If cleaning doesn’t fix it, replacement cartridges and valves are readily available and designed to be changed without replacing the whole tap.
Think of cartridges, valves and seals as the plumbing equivalent of tyres on a car. Nobody expects tyres to last forever, but replacing them doesn’t mean there’s something wrong with the car. The same applies to taps and showers: the brass body and main structure can last for many years, while the hardworking internal parts occasionally need servicing or replacement along the way.
How to Find the Right Tap Cartridge or Spare Part
The quickest way to get the right part the first time is to identify your exact tap model, then match the cartridge or valve to it. Cartridges are not universal, so the correct size and fitting matter.
Start with your product. If you know the product name, search for it on our website and review the product information, manuals and spare parts listed alongside it. Many of our products share common internal components, but identifying the exact model helps ensure you buy the correct part.
Check your documentation. If you still have the original instruction manual, it often includes an exploded diagram showing each component and its part number. These are especially useful for identifying cartridges, valves, handles and shower heads.
Compare photos. Not sure which model you have? Take a few clear photos of the complete tap or shower, the handles or controls, and the part you think needs replacing. We can often identify a product and recommend the right part from photos alone.
Contact our support team. If you are unsure, our team is happy to help identify the correct component before you order. Send us photos and any purchase details, and we’ll point you in the right direction.
Why Do Taps Wear Out?
A tap is not a static object. Every day it deals with:
Water flowing under pressure
Temperature changes
Limescale and mineral deposits
Tiny particles and debris carried in the water supply
Regular movement of handles, cartridges and valves
Thousands of opening and closing cycles over its lifetime
Just like the brake pads on a car, the seals and cartridges inside a tap are hardworking components. They do an excellent job, but they’re wearing parts, and over time even the best-engineered components are affected by natural wear, hard water, waterborne debris, pressure changes and ageing rubber seals.
It’s worth remembering that needing maintenance doesn’t mean there is a manufacturing fault. Even premium taps from leading brands need servicing during their lifetime. How often simply depends on your water quality, water pressure, how much the tap is used, and how well it’s maintained. Some customers never need a replacement cartridge; others in hard water areas need one much sooner. That is just the reality of working plumbing.
Why We Sell Spare Parts
Customers sometimes ask why we keep such a large spare parts section. The honest answer is that we would rather not need one at all. But having replacement cartridges, valves, seals and handles available is a real benefit for our customers.
Without spare parts, a minor issue could mean replacing an entire tap or shower system, adding unnecessary cost and waste. Instead, a relatively inexpensive component can often restore a product to full working order within minutes. In many cases a replacement cartridge costs only a fraction of a new tap and can add years to the life of the product.
Designed to Be Maintained
That is why serviceability is one of the principles behind our product design. Many modern products are increasingly hard to repair, with components hidden away, sealed permanently, or impossible to reach without specialist tools. We take a different approach: our taps and showers are designed so common service parts can be accessed, removed and replaced when needed.
That means:
lower maintenance costs
less waste
longer product life
easier repairs
Looking After Your Tap Finish
While many internal components can be serviced or replaced over time, the external finish is one area where prevention is far better than cure. Whether you have a brushed brass, antique brass, matt black, gunmetal, brushed stainless steel or chrome finish, proper care is essential to preserve its appearance.
Unlike cartridges, valves and seals, decorative finishes are not serviceable. Once a finish has been damaged by harsh chemicals, abrasive cleaning or physical wear, it usually cannot be restored by replacing a single part. So it pays to treat tap finishes with the same care you would give any premium surface in your home.
The biggest causes of finish damage:
Harsh cleaning products. Many bathroom cleaners contain strong acids, bleaches, ammonia, solvents or limescale removers that can damage protective coatings and finishes.
Abrasive cleaning pads. Scouring pads, abrasive sponges and cleaning powders scratch surfaces, and the damage is permanent.
Chemical overspray. Spraying cleaner directly onto taps lets excess product sit on the finish and cause staining, discolouration or deterioration.
Standing water and limescale. In hard water areas, letting droplets dry naturally leads to limescale deposits that get harder to remove over time.
Our recommended cleaning routine:
Clean regularly with warm water and a soft microfibre cloth.
Dry the tap after cleaning where possible.
Apply cleaning products to the cloth first, never directly onto the tap.
Remove soap residue and toothpaste splashes promptly.
Use only mild, pH-neutral cleaning products.
What to avoid: bleach-based cleaners, acid-based limescale removers, abrasive creams and powders, wire wool or scouring pads, solvents and industrial cleaners, and leaving any cleaning product in contact with the surface for a long time.
Most finish issues are preventable with routine care. For a fuller routine by finish type, see our brushed brass tap cleaning guide. Just as cartridges and valves occasionally need servicing inside, tap finishes benefit from a little ongoing care outside. The difference is that internal components can usually be replaced, while the finish is one of the few parts of a tap that cannot be renewed once damaged.
Our Commitment
When you buy from House of ENKI, our goal is not only to provide a beautiful tap or shower, but to support it throughout its life. We know it’s disappointing when a tap develops a drip or needs maintenance, and we would much prefer every product performed flawlessly forever. But when wear and tear catches up with a hardworking component, we are committed to making the repair as simple and affordable as possible. Because sometimes the best solution is not replacing the whole tap. Sometimes it’s replacing the £15 part that has done its job faithfully for years.
Frequently Asked Questions
Why is my tap leaking?
The most common causes are limescale build-up, waterborne debris, worn cartridges or valves, ageing seals and O-rings, excessive water pressure, and general wear and tear. In many cases a simple clean and descale resolves it without any replacement parts.
How do I know if I need a new cartridge?
Common signs are dripping when the tap is off, a handle that is hard to turn, inconsistent flow, temperature control issues, and water leaking around the handle. Before replacing a cartridge, clean and descale it first, as limescale and debris cause many of these symptoms.
Can I replace parts myself?
Many components can be replaced by a competent DIY enthusiast or a plumber. Our products are designed so common service parts, such as cartridges and valves, are accessible without replacing the whole tap. Always isolate the water supply before carrying out any maintenance.
How do I identify the correct spare part?
Search for your product on our website, check the original manual and exploded parts diagram, or contact our support team with photos of your tap or shower. In most cases we can identify the correct spare parts required from photos alone.
Does a leaking tap mean the product is faulty?
Not necessarily. Like any product with moving parts, taps wear over time. Cartridges, valves, seals and O-rings are serviceable components that age with use. A leak usually means one of these needs cleaning, servicing or replacing, rather than the tap itself being defective.
