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Toilet Spares

Most toilet problems come down to a single worn internal part. If you need toilet spare parts for a close-coupled cistern, toilet cistern parts for a concealed in-wall system, or toilet flush system parts for a wall-hung WC frame, everything is stocked here. Brands include Armitage Shanks, Grohe and Geberit, plus discontinued Bathstore and B&Q cistern models no longer available through standard retailers.

Toilet Spares

Toilet Spare Parts for Close-Coupled, Concealed and Wall-Hung Cisterns

Replacement toilet parts and toilet spares UK. Flush valves, syphons, cistern fittings and WC frame fixings for every cistern type.

Most toilet faults come down to a single worn internal component. A syphon that no longer lifts, a flush valve seal that lets water trickle into the pan, a fill valve that hisses after refilling. These are replacement toilet parts jobs, not whole toilet replacements. Whether you need toilet parts for a standard close-coupled cistern or replacement cistern parts for a concealed in-wall system, the parts are here. Close-coupled cisterns use either a syphon or a flush valve depending on model and age. Concealed cisterns and wall-hung WC frames take flush valves and fill valves specific to the frame brand. We stock spare toilet parts and toilet fittings for Armitage Shanks, Grohe, Geberit and Ideal Standard, plus flush valves and syphons for discontinued Bathstore and B&Q cistern models no longer available through standard trade counter retailers.

Close-Coupled, Concealed or Wall-Hung: Which Toilet Type Do You Have?

The type of cistern determines which spare parts fit. Use this to find the right section before ordering.

Close-Coupled

The cistern sits directly on top of the pan and is visible. Flushed by a button on the lid or a side lever. If the cistern has a handle rather than a button, it uses a syphon. If it has a button, it uses a flush valve.

Parts stocked

Flush valves, syphons, fill valves, push buttons, cistern levers, washers and close-coupled fixings.

Concealed and Back-to-Wall

The cistern is hidden inside a wall cavity or furniture unit. Only the flush plate or button is visible. Access is through the flush plate or a removable service panel. Brand and model determine which parts fit.

Parts stocked

Concealed flush valves, fill valves and internal spares for Grohe, Alca Plast, Roca and Thomas Dudley units.

Wall-Hung

The pan is mounted on the wall with no floor contact. The cistern is inside the wall on a fixing frame. Frame heights are 0.82m, 0.98m and 1.18m. Check the frame brand and height before ordering any part.

Parts stocked

WC frame spares and cistern fittings for Geberit, Ideal Standard, Villeroy and Boch, Vitra, Bauhaus and Abacus frames.

Flush Valves, Syphons, Cisterns and WC Frames: What Is the Part Called?

Common toilet part names and what they do. Use this to identify the right sub-category before ordering.

Part Name	What It Is
Toilet Flush Valve	The outlet valve inside the cistern that releases water when the button or lever is pressed. Comes in dual flush and single flush versions, in 1.5 inch and 2 inch outlet sizes. Modern cisterns use flush valves rather than syphons.
Toilet Syphon	The traditional flush mechanism in older close-coupled cisterns, lifted by a side handle. A rubber diaphragm pulls water over the dome and into the pan. If your toilet has a handle rather than a button, it almost certainly uses a syphon.
Fill Valve / Ball Valve	Controls water refill after flushing. Also called an inlet valve or ballvalve. Fails when the cistern runs continuously, refills too slowly, or makes a hissing noise after each flush.
Concealed Cistern Spares	Parts for in-wall and back-to-wall cisterns. Brands include Grohe, Alca Plast, Roca and Thomas Dudley. Accessed through the flush plate or a service panel. Brand and model determine compatibility.
WC Frame Spares	The fixing frame inside the wall for wall-hung toilets. Brands include Geberit, Ideal Standard, Villeroy and Boch, Vitra and Bauhaus. Frame heights are 0.82m, 0.98m and 1.18m. Parts include flush valves, fill valves and flush plate rods.
Push Button	Triggers the flush valve on modern cisterns. Connects by direct mount or cable. Available in single flush and dual flush versions. If the button sticks or no longer triggers the flush, the button assembly needs replacing.
Flush Plate	The panel covering the access opening on concealed and in-wall cisterns. Connects to the flush valve via rods or cables. Brand and model specific. Measure the aperture carefully before ordering a replacement.
Cistern Lever	The side-mounted handle on traditional exposed cisterns. Connects to the syphon or flush valve inside. If the lever moves but the toilet does not flush, check the link arm connecting it to the mechanism below.
WC and Commode	WC is the standard trade term for a toilet. WC spares and WC parts refer to the same toilet cistern and flush components covered across this section. Commode parts follow the same specification as standard close-coupled toilet components.

Questions About Toilet Spare Parts

Identification, diagnosis and compatibility questions for the most common toilet repair scenarios.

How do I know whether my toilet has a syphon or a flush valve?

A syphon lifts when you press the handle, pulling water over a dome to release the flush. A flush valve opens a seal at the base of the cistern when the button is pressed. The simplest way to tell is by looking at the flush mechanism. Syphons are tall plastic columns with a rubber diaphragm inside. Flush valves are tower-shaped with a visible float. If your cistern has a push button rather than a handle, it almost certainly has a flush valve.

My toilet keeps running after flushing. Is it the fill valve, the flush valve or the syphon?

A constantly running toilet is usually the fill valve or the flush valve, not the syphon. If water trickles into the pan continuously, the flush valve seal has failed or the float height needs adjusting. If the cistern refills but then immediately starts running again, the fill valve is the likely cause. Lift the cistern lid and watch what happens after a flush. If the water level rises above the overflow pipe, the fill valve needs replacing.

How do I find spare parts for a concealed or wall-hung toilet cistern?

Concealed and wall-hung cisterns are accessed through the flush plate or a removable service panel. The brand and model of the fixing frame determines which parts fit. Common brands include Geberit, Grohe, Ideal Standard, Villeroy and Boch, Vitra and Alca Plast. Check the frame for a model label before ordering. If the label is missing, the Grohe toilet spares section and Villeroy and Boch toilet spares section both list parts by model name.

What is the difference between a flush plate and a push button?

A push button sits directly on the cistern lid and connects to the flush valve below, either by direct mount or a short cable. A flush plate covers the entire access panel on a concealed or in-wall cistern and connects via rods or cables to the valve inside the wall. Push buttons are relatively universal. Flush plates are brand and model specific. If you have a wall-hung toilet, you need a flush plate rather than a push button.

Do you stock parts for discontinued toilet cisterns such as Bathstore and B&Q models?

Yes. We stock replacement flush valves and syphons for discontinued Bathstore and B&Q toilet cisterns, including the Bathstore Savoy, Bathstore Conceala, B&Q Madrid and B&Q Valencia. These parts are no longer available through standard trade counter retailers. If your model is not listed, email us the model name and a photo of the existing part and we will identify the correct replacement.

What are the internal parts of a toilet cistern called?

The main internal parts are the flush valve or syphon, which releases water into the pan, and the fill valve or ball valve, which refills the cistern after flushing. The flush mechanism connects the button or lever to the valve below. In concealed cisterns and wall-hung frames, a flush plate connects via rods or cables to the flush valve inside the wall. Push buttons and cistern levers are the external operating parts that connect to the mechanism.

How do I identify which flush valve my Armitage Shanks toilet takes?

Armitage Shanks cisterns use several distinct flush valve types across different models and production years. The outlet size is either 1.5 inch or 2 inch, and the height varies between 180mm and 200mm depending on the cistern. The model name is usually printed on the cistern body or inside the lid. The Armitage Shanks toilet spares section lists flush valves by model name and outlet size, which is the most reliable way to confirm compatibility before ordering.

Not sure which toilet cistern part fits yours?

Send us a photo of your cistern and the existing part. We will identify the correct replacement before you order.

Email Us For Help

Or email us directly at sales@bathroomspareparts.co.uk

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