Hansgrohe Tap Problems (Metris, Talis — Cartridge Replacement)
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Post a job — we'll find you an engineer →Hansgrohe and Grohe are separate companies despite the similar names. Parts are not interchangeable — always confirm you have a Hansgrohe product before ordering spares.
Hansgrohe taps are fitted in thousands of UK homes and commercial properties, but like any ceramic cartridge tap, they can develop leaks, drips, or stiffness over time. The culprit is usually the internal ceramic disc cartridge — a precision component that wears out gradually through daily use, limescale exposure, and water quality variations. This guide walks you through identifying a faulty cartridge, sourcing the correct genuine replacement part, and fitting it yourself without calling an engineer. The job typically takes 20–30 minutes and requires only basic tools. However, if you're uncomfortable isolating the water supply, working with chrome fittings, or you suspect a deeper valve fault, it's worth consulting a qualified plumber rather than risk water damage.
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Most likely cause & what to check
Confirm your tap model by checking the underside of the tap body or spout for the Hansgrohe logo and model reference. Hansgrohe Metris and Talis basin and kitchen taps are two of the most commonly installed in UK new-build and hotel projects. The Metris 100 basin tap typically uses the Hansgrohe 95521000 cartridge (40mm ceramic), while the Talis S and Talis E series take different 35mm variants. Hansgrohe UK customer service can be reached on 01606 813002 or via hansgrohe.co.uk/service for part number confirmation.
Isolate the water supply at the under-sink valves, then open the tap to depressurise the pipework. On Hansgrohe single-lever taps, remove the handle cap — this is usually a push-fit disc on the top or side of the handle. Behind it you will find a Phillips or Allen key screw (typically 3mm). Remove the screw and lift the handle clear. On some Talis models the handle is secured with a grub screw accessed from the side; check carefully before applying force.
The cartridge is held in place by a large plastic retaining nut. Unscrew this anticlockwise — it may be tight on older taps due to limescale build-up. If it will not budge by hand, use an adjustable spanner with a folded cloth to protect the chrome. Once the nut is removed, note the position of the cartridge orientation tabs. Hansgrohe cartridges typically have a single flat on one side that must align with a corresponding flat in the valve body.
Remove the old cartridge by pulling it straight up. Inspect the cartridge for cracked ceramic discs (visible as fine cracks or dark staining) or worn O-rings. Even if the ceramic discs look intact, the spring-loaded mechanism inside can fatigue over time, causing a drip when the tap is closed. Order a genuine Hansgrohe cartridge from hansgrohe.co.uk, Plumb Center, or a specialist such as Tap Warehouse. Avoid generic replacements — Hansgrohe tolerances are tight and ill-fitting cartridges cause leaks from day one.
Lightly lubricate the new cartridge O-rings with silicone grease (never petroleum jelly, which degrades rubber). Insert the cartridge in the correct orientation, press it firmly home, then refit and hand-tighten the retaining nut before snugging up with a spanner. Refit the handle and screw, then replace the cap.
Restore the water supply slowly and check for leaks. Test the tap through its full range — cold, mixed, and hot — and confirm the handle moves smoothly without stiffness. If the cold water runs warm for several seconds after the tap is opened (a common complaint with Hansgrohe thermostatic taps), this is usually a symptom of hot and cold supplies being reversed at installation, or a faulty check valve, rather than a cartridge fault. Check the orientation of the hot and cold supply tails under the basin.
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Frequently asked questions
How do I know if my Hansgrohe tap cartridge has failed?
A faulty cartridge usually shows itself as a persistent drip from the spout when the tap is fully closed, reduced water flow, or a handle that feels stiff or difficult to move through its range. You may also notice the tap leaks from under the handle cap or from the body itself. If the tap has been in service for 7–10 years, cartridge wear is the most likely cause.
Can I use a generic or cheaper aftermarket cartridge instead of a genuine Hansgrohe part?
No — Hansgrohe cartridges have very tight manufacturing tolerances, and generic replacements will not seal correctly, leading to leaks from day one. Always order a genuine Hansgrohe cartridge from an authorised supplier or the manufacturer's helpline to guarantee fit and longevity.
What's the difference between Hansgrohe and Grohe, and can I swap parts between them?
Hansgrohe and Grohe are separate companies despite the similar branding; they are not interchangeable. Always check the underside of your tap body for the correct brand name and model number before ordering spares — ordering the wrong part will waste time and money.
My tap is leaking from under the handle cap — is it definitely the cartridge?
A leak from under the cap often signals a worn cartridge or damaged O-rings, but it could also be a loose retaining nut that has worked loose over time. Start by carefully tightening the large plastic nut beneath the handle with a spanner; if the leak persists, the cartridge itself needs replacing.
Do I need to turn off the mains water to replace the cartridge?
You should always isolate the water supply using the isolation valves under the sink before opening the tap body. This prevents flooding and makes the job safer and cleaner. If your basin doesn't have isolation valves fitted, now is a good time to ask a plumber to install them for future maintenance.
How long does a Hansgrohe cartridge usually last?
Most ceramic cartridges last 8–12 years in domestic use, depending on water hardness and usage patterns. Hard water areas may see earlier wear due to limescale deposits; fitting a water softener or using a limescale inhibitor can extend cartridge life significantly.