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Toilet Replacement Parts

The right toilet replacement parts help you keep your bathroom running smoothly by swapping out worn essential components without replacing the whole unit. Browse a variety of spares to find a suitable fit for your setup that will make maintaining your toilet quicker, simpler, and more cost-effective.

Our Toilet Replacement Parts by brands
  • Geberit_discover_our_range
  • Viva_sanitary_discover_our_range
  • Siamp_discover_our_range
  • Thomas-dudley_discover_our_range
  • Wirquin_discover_our_range
  • Ideal-Standard_discover_our_range
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Quick Part Finder Checklist
Before you order toilet replacement parts, it’s worth spending 60 seconds confirming what you’re actually replacing. It saves time, avoids returns, and gets you the right fit first try.
  • Identify the toilet type: close-coupled cistern vs concealed cistern (parts aren’t always interchangeable).
  • Find the brand/model: often inside the cistern lid, or on the frame for concealed systems.
  • Pinpoint the part category: toilet seat spares, flush valves / dual flush valve, inlet valves, washers/seals, buttons/plates, or toilet seats, etc.
  • Check what you can measure/see: sizes, fixing points, and whether it looks like a like-for-like replacement.
  • Use the right help if you’re unsure: start with manufacturer details, then contact customer care if you need support.
Toilet Replacement Parts at Plumb2u
At Plumb2U, we place a focus on delivering high quality toilet replacement parts at affordable prices. When you have a faulty toilet, it’s important to solve the problem as quickly as possible. Whether it’s a leak, a faulty flush or a broken seat, you need to know that you can rely on your toilet as it is an integral part of the home. We work with a range of brands such as Siamp, Thomas Dudley and Ideal Standard which means that all of the products we offer are of the highest quality. We make it quick and easy to order the parts that you require and what’s more, we can have them with you the next day if you need the parts quickly. We aim to provide a simple and efficient service that ensures you can always access the toilet replacement parts you need. 
 
You can find more details about some of our main category products below:
 
Filling Valves
Flushing valves
Toilet Flush Buttons
Toilet Seats
Cistern Spares

Plumb2u Filling Valves

The filling valve is the part of the toilet that is responsible for refilling the tank after being flushed. Over time, a worn or out of alignment fill valve can become a problem, cause a leak, and wear on valve's components and parts. At Plumb2U, we have a variety of filling valves available to suit a range of designs, ensuring you can find what you are looking for.
 
We have products from leading manufacturers including Wirquin, Ideal Standard and Geberit. They are affordable and easy to fit too, which means that you can solve your problem without the hassle.

Plumb2u Flushing Valves

Flush valves are designed to release large volumes of water when activated, which is often used for flushing toilets or urinals. They can be found in both toilet tanks and body parts like bowls where waste goes down the drain after you use it! If you are experiencing a problem with the flushing of your toilet, it might be a case of replacing the flushing valve.  Some of our flushing valves top sellers are:
 

Plumb2u Toilet Flush Buttons

Flush buttons can have one button or two buttons to discharge the water. If you have one button, it will discharge the same amount of water every time. This model is called single flush button. If you have two buttons (dual flush button), one of the buttons will flush more water than the other. This way you can reduce the amount of water you use when flushing the toilet. . Our range includes respected brands such as GROHE, Geberit & Wirquin that are designed to last through the use of durable materials. Furthermore, they are easy to clean and are easier to use for certain family members, especially children.
 

Plumb2u Toilet Seats

Toilet seats might be considered the most important part of the toilet, especially when it comes to comfort and aesthetics. At Plumb2U, we have a large range of toilet seats available from a wide range of manufacturers such as Croydex, Geberit, Roca, Heritage and Thomas Dudley.
 
We offer a selection of toilet seats that come in many shapes and sizes with the most common shapes being oval or round.

Plumb2u Cistern Spares

The cistern is that tank that stores water for "flushing" and disposing of the waste we generate when we relieve ourselves. You can find our selection of cistern spares in the following categories: filling valves, flushing valves, syphons or washers.
Syphons
WC FLUSH PLATES
AIR BUTTONS
CISTERN LEVELS

Plumb2u Syphons

The toilet syphon is a one-way valve that's used to help make flushing easier by boosting the flush, using natural force of water rushing up and down. We have a variety of syphons available to order, making it possible for you to replace faulty parts with ease. Our products come from a range of manufacturers and that guarantees that you will benefit from using manufacturers such as Geberit and Thomas Dudley.

Plumb2u WC Flush Plates

Toilet flush plates are an essential part if you have a wall-mounted toilet. They're installed onto the fixing frame, and may come in various materials including plastic or stainless steel for durability purposes. You can find our range of flush plates from brands as Geberit and Grohe.

Plumb2u Air Buttons

Flush button which activates the cistern's flushing mechanism using the movement of air. You can find our range of air buttons from brand as Grohe.

Plumb2u Cistern Levels

The cistern level is a lever plugged in a cistern and it is used to flush the water from the cistern to the pan. You can find our range of cistern levels from brands as Ideal Standard, Twyford and Viva.
Common Toilet Problems and What Usually Fixes Them
A lot of “toilet issues” come down to one worn component inside the cistern. If you can match the symptom to the likely spare part, you’ll narrow your options fast and avoid buying bits you don’t need.
 
A toilet that keeps running is often linked to a worn seal or a dual flush valve that isn’t closing cleanly. If the cistern won’t refill or fills very slowly, the issue is usually the inlet valve or a washer. 
 
A weak flush can point to the flush valve or the button/actuator not triggering properly, while damp around fittings often comes from tired washers or seals. If you’re not sure which part is failing, check the manufacturer details first.
 
FAQ's
If you have questions about Toilet Replacement Parts here you can find some FAQ's
1. Are toilet replacement parts universal?
Some toilet spares are universal, but many toilet spare parts are brand- and model-specific (especially flush valves and concealed cistern components). If you’re unsure, check the manufacturer details first.
2. How can I replace a toilet part?
If you are replacing a toilet spare parts, the best way to install is checking the installation guide provided from the manufacturer. In case the supplier hasn’t provided one within the product packaging, you can find a list of manufacturer contact details here.
3. How to find the replacement toilet part I need?
If you can’t find the manufacturer part number you need, the best option will be looking for the toilet model number and contact the manufacturer to know what is the part number you are after. Once you find the part, you can check if the part is in our online catalogue. If you need help finding the product, please contact our customer care team.
4. Do you sell Geberit toilet replacement parts?
Yes, we do. We are Geberit officially stockist and we offer a wide range of spare parts from toilet flusing valves, push buttons, flush plates and Geberit frames. You can see all range of Geberit products here.
5. Are all toilet valves the same?
A flush valve is a part inside the tank of a toilet that moves the water into the bowl. Toilet flush valves come in different sizes ranging from 2 to 4 inches, depending on the toilet design. When replacing the flush valve in an existing toilet, make sure you get a valve that will work for that specific toilet. Typically, you have to stick to the size that is in there already.
 
If you need help finding the replacement valve you need, get in touch with our customer service team.
6. Where to find toilet spare parts online?
We offer a wide range of spare for toiles from concealed cisterns to toilet seats spares that you can order online and we can dispatch them accross most of the UK locations. If you can't find what you are looking for, please get in touch with our customer care team and they will be happy to assist you with your search.
7. How do I identify the toilet part I need?
Find the brand and model details first, then match the exact part type (e.g., dual flush valve, inlet valve, seals). If you get stuck, contact customer care and we’ll help you narrow it down.
8. What should I check before ordering a replacement part?
Confirm the cistern type (close-coupled vs concealed), the part type (flush valve vs inlet valve), and any visible size/shape differences so you can order a like-for-like fit. If you’re replacing concealed internals, browsing the concealed range can help you spot what you have.
9. Can I buy toilet seats and replacement parts separately?
Yes. Toilet seats are typically purchased separately from cistern spares and valves, so you can replace only what’s needed. Browse our Toilet Seats range for more options.
Subcategories
Bemis Proseat Standard Closing White 340259000

Bemis Proseat Standard Closing White 340259000

(Code: 5000AR000)
£ 23.85
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Viva 3/8" E Type Toilet Handle Kit, Flush Tank Cistern Lever PP0008E/A

Viva 3/8" E Type Toilet Handle Kit, Flush Tank Cistern Lever PP0008E/A

(Code: PP0008E/A)
£ 4.68
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(1)
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Torbeck Opella Side Entry Filling Valve B610

Torbeck Opella Side Entry Filling Valve B610

(Code: 1171010)
£ 11.99
Details Add to Cart
Croydex Constance Flexi-Fix™Toilet Seat WL601722H

Croydex Constance Flexi-Fix™Toilet Seat WL601722H

(Code: BB81002)
£ 33.79
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(3)
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GROHE 37489000 Toilet Extension Pipe for Concealed Cisterns

GROHE 37489000 Toilet Extension Pipe for Concealed Cisterns

(Code: CC00246)
£ 11.95
(-49.87%) £ 5.99
Details Add to Cart
GROHE 55mm WC Inlet Connector 37119000

GROHE 55mm WC Inlet Connector 37119000

(Code: CC00126)
£ 4.09
Details Add to Cart
Ideal Standard Replacement Dual Flush Cistern Push Button E4447AA

Ideal Standard Replacement Dual Flush Cistern Push Button E4447AA

(Code: 261.616.00.1)
£ 12.90
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(2)
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Siamp 34951309 Cistern Inlet Float Valve Diaphragm Washer

Siamp 34951309 Cistern Inlet Float Valve Diaphragm Washer

(Code: 1171035)
£ 2.60
Details Add to Cart
Viva 3/8" D Type Toilet Handle Kit, Flush Tank Cistern Lever PP0008D/A

Viva 3/8" D Type Toilet Handle Kit, Flush Tank Cistern Lever PP0008D/A

(Code: PP0008D/A)
£ 4.68
Details Add to Cart
Ideal Standard Rubber Doughnut Close Coupling Washer Armitage Shanks E730067

Ideal Standard Rubber Doughnut Close Coupling Washer Armitage Shanks E730067

(Code: E730067)
£ 4.50
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Wirquin Jollyflush Dual Flush Chrome Push Button, Toilet Flushing Button 10717795

Wirquin Jollyflush Dual Flush Chrome Push Button, Toilet Flushing Button 10717795

(Code: FF49008)
£ 13.85
Details Add to Cart
Ideal Standard Inlet Float Valve Service Kit SV90167

Ideal Standard Inlet Float Valve Service Kit SV90167

(Code: SV90167)
£ 13.35
Details Add to Cart
Siamp 34495009 Optima 50 Dual Flush Toilet Push Button Chrome

Siamp 34495009 Optima 50 Dual Flush Toilet Push Button Chrome

(Code: 1171033)
£ 12.70
Details Add to Cart
Viva Replacement Plastic Flush Tank Cistern Lever Arm PP0008/LA

Viva Replacement Plastic Flush Tank Cistern Lever Arm PP0008/LA

(Code: PP0008/LA)
£ 1.95
Details Add to Cart
Ideal Standard Flush Valve Seal and Clip SV01967

Ideal Standard Flush Valve Seal and Clip SV01967

(Code: SV01967)
£ 4.75
Details Add to Cart
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