Get quotes to replace toilet float valve in the cistern tank

HaMuch is Excellent
By Emily Rivers
Last updated 12th August 2022

When we think of a toilet, we often picture the toilet bowl, toilet seat and the cistern at the back of the toilet. Nowadays, there are various types of toilets and some of them, the cistern is hidden behind the wall. It makes for a great sleek look in the bathroom, but when the toilet is no longer flushing correctly, it can seem daunting for the repair work as the cistern is not easily accessible as a 1970s toilet. A part that we don’t give any thought to until the toilet is not flushing and filling correctly, is the float valve which during your time living in your home, may end up needing to be replaced. Toilets can be made of  porcelain or a type of clay called vitreous china, they can come in glazed cast iron, steel, or stainless steel materials but the components nowadays inside most tanks are plastic, otherwise older toilets have metal parts which eventually corrode from sitting in water.

What are the different types of toilets?

If you are in the process of upgrading your toilet as a solo project or part of a bigger bathroom refurbishment before calling in the plumber you need to know what type of toilet you currently have and what type of toilet you would like to upgrade to. The plumber will let you know if this is possible and at what sort of financial cost the project will be. 

The different types of toilets are;

Close coupled toilets - the type of toilet we all familiar with, the pan and cistern coupled close together to make one toilet unit that is easy to repair and does not require too much space

Wall hung toilets - the water tank is built into the wall, these are expensive and difficult to install

Back to wall toilets - The toilet bowl is fixed directly onto the wall, while the cistern is hidden within the wall. These toilets are easier to install and less expensive than wall-hung ones

Back to wall toilets with storage units - A back to wall toilet that has the cistern hidden in the wall or the storage area

High and low level toilets - these toilets have a vintage look with the cistern fitted higher than normal, even the low level is higher than normal

Toilets also are fitted with different flushing mechanisms;

  • Single flush (one button)
  • Dual flush (a ½ flush for liquid waste and a fuller flush for solid waste)
  • Touchless flush (motion sensor flushes)
Cost to replace toilet float valve

Does my toilet have a cistern valve, float valve or ballcock valve?

Older toilets used to have a ballcock valve, also known as a ball valve, (1970s Armitage Shanks float valve) and floated on the surface of the water. This was an obvious balloon or ball shaped valve. As cisterns have gotten small to accommodate wall hung toilets and back to wall toilets with storage units, the components in the cistern have also become more compact, meaning modern toilets now have a float valve (occasionally referred to as a cistern valve).

This valve is responsible for controlling the level of water inside the toilet tank and sometimes it stops sliding up and down correctly with the water level and may need replacing. This could be due to a build up of limescale or just general wear-and-tear over time as the float valve is permanently in water. Well known brands of float valves are Fluidmaster for wall-hung and other compact toilets or Flomaster for close coupled toilets. Both brands allow for side entry fill.

How much will it cost to replace a float valve?

A float valve is a relatively inexpensive part to replace in a toilet. Depending on the make and type of toilet you have the part can cost anywhere from £7 - £22 plus the labour of fitting it. If you have a close coupled toilet where there is no apparent access issue, replacing the float valve is a job that will be done in under 30 minutes.

Even wall hung toilets, where it might appear trickier with the cistern built into the wall, the access is just hidden behind the flush panel on the wall. The plumber will remove the flusher plate which will uncover an access panel behind a debris plate with the flush rods. All of this unclips in seconds to reveal the workings of the toilet. From here the plumber will have access to all of the cistern components of the toilet. Most are just plastic parts that easily unclip and slot in and out. 

To access the float valve in the wall hung toilet, once in the panel, the plumber needs to isolate the water and unscrew the water hose which will only add an extra minute on the job. Once the float valve is unclipped and removed from the wall hung toilet, the plumber can even unclip the toilet syphon to check it is working as it should be before replacing the float valve and reconnecting the water supply. Therefore, even changing a float valve in a wall hung toilet can be accomplished in under a half hour call-out fee.

Cost to replace the toilet float valves

Per

Average cost

Replacing a close coupled toilet ball valve

Per hour 

£40

Replacing a wall hung toilet float valve

Per hour 

£45

Replacing a back-to-wall toilet float valve

Per day

£40

Replacing a close coupled toilet ball valve and flusher

Per day

£50

How can I adjust the toilet float valve?

The toilet float valve is the small rubber ball or device inside the cistern that stops the water from overflowing or running non-stop.

If your toilet is prone to running or filling slowly, this float may need adjusting to solve the issue. 

Adjusting a ball float

Carefully lift the toilet lid to the cistern and put that one side giving you access into the cistern. Look for the ball float next to the toilet tank. This might be a ball or a rectangle device. It will move up and down along a vertical pipe with each flush.

Unscrew the valve slowly so that it lowers to the water pressure then flush the toilet and watch the tank refill. The water level should stop just below the top fill line on the float. The float can keep being lowered in order to lower the water level even lower.

Adjusting a Modern Toilet Float

A modern toilet will not have a ball float but have a more modern device like the Fluidmaster, which sits inside of a fill valve. Look for the adjustment screw or clip to move the float up or down. Moving it down should stop water in the toilet from running.

Adjusting a Toilet Float to Conserve Water

Lowering your toilet flush will use less water. Keep flushing and adjusting until you find the perfect level to flush away waste with the minimum amount of water needed.

What toilet parts are common to break?

Toilets appear strong and durable on the outside, but some toilet components that work together for the functioning of the toilet are not as tough and the plastic parts are prone to break. Aside from the toilet float valve, this is three toilet parts that are common to break that could leave you with a toilet that overflows;

Fill valve

This valve allows the water supply to enter the toilet and fill the reservoir tank. The float on the fill valve goes up as the water rises. The toilet will stop allowing water to fill once the float reaches the top of the fill valve. If the fill valve does not shut off once the level is reached, water will cascade out of the toilet and flood the bathroom. If the valve is not opening correctly, water will not be able to pass through to fill up the tank.

When this fill valve stops working, a plumber will have to replace the valve. This is not too costly, as the part is under £20 plus the call-out fee of the plumber.

Flapper

This is a stopper located inside your tank. When flushing the toilet, as the handle goes down, the flapper lifts allowing water to be pushed through the trap into the toilet bowl. When this part is no longer working correctly, your toilet might be running water from the tank into the bowl even when not in use, wasting water. A badly worn-out flapper might even result in ghost flushes. Replacing a flapper cost about £10 plus the plumber's call-out fee to replace the part.

Handle

If you go to flush the toilet and nothing is happening, this could be a sign of a damaged handle that needs replacing. The handle lifts the flapper to allow the water to quickly drain from the tank into the toilet bowl but over time the handle is known to corrode and need replacing. Like the flapper and the fill valve, this is a similar cheap replacement cost. 


Estimates for common plumber jobs;

Rates for other trades

Replace float valve in toilet cistern cost in the UK
Replace float valve in toilet cistern cost in the UK (excluding VAT or callout charges)
Location in UKReplace float valve in toilet cistern cost
Replace float valve in toilet cistern near Aberdeen£38
Replace float valve in toilet cistern near Amber Valley£39
Replace float valve in toilet cistern near Angus£37
Replace float valve in toilet cistern near Arun£45
Replace float valve in toilet cistern near Ashfield£38
Replace float valve in toilet cistern near Aylesbury Vale£51
Replace float valve in toilet cistern near Barnsley£36
Replace float valve in toilet cistern near Basildon£46
Replace float valve in toilet cistern near Basingstoke & Deane£54
Replace float valve in toilet cistern near Bassetlaw£34
Replace float valve in toilet cistern near Bath & North East Somerset£39
Replace float valve in toilet cistern near Bedford£49
Replace float valve in toilet cistern near Belfast£32
Replace float valve in toilet cistern near Birmingham£39
Replace float valve in toilet cistern near Blackburn£37
Replace float valve in toilet cistern near Blackpool£36
Replace float valve in toilet cistern near Bolton£39
Replace float valve in toilet cistern near Bournemouth£43
Replace float valve in toilet cistern near Bracknell Forest£55
Replace float valve in toilet cistern near Bradford£39
Replace float valve in toilet cistern near Braintree£45
Replace float valve in toilet cistern near Breckland£30
Replace float valve in toilet cistern near Bridgend£35
Replace float valve in toilet cistern near Brighton£49
Replace float valve in toilet cistern near Bristol£37
Replace float valve in toilet cistern near Broadland£41
Replace float valve in toilet cistern near Broxtowe£38
Replace float valve in toilet cistern near Bury£39
Replace float valve in toilet cistern near Caerphilly£34
Replace float valve in toilet cistern near Calderdale£38
Replace float valve in toilet cistern near Cambridge£44
Replace float valve in toilet cistern near Canterbury£44
Replace float valve in toilet cistern near Cardiff£34
Replace float valve in toilet cistern near Carmarthenshire£29
Replace float valve in toilet cistern near Charnwood£38
Replace float valve in toilet cistern near Chelmsford£45
Replace float valve in toilet cistern near Cheltenham£43
Replace float valve in toilet cistern near Cherwell£48
Replace float valve in toilet cistern near Chester£37
Replace float valve in toilet cistern near Colchester£45
Replace float valve in toilet cistern near Conway£31
Replace float valve in toilet cistern near Coventry£38
Replace float valve in toilet cistern near Crewe & Nantwich£36
Replace float valve in toilet cistern near Dacorum£52
Replace float valve in toilet cistern near Derby£38
Replace float valve in toilet cistern near Doncaster£35
Replace float valve in toilet cistern near Dover£44
Replace float valve in toilet cistern near Dudley£40
Replace float valve in toilet cistern near Dumfries & Galloway£34
Replace float valve in toilet cistern near Dundee£40
Replace float valve in toilet cistern near East Ayrshire£40
Replace float valve in toilet cistern near East Devon£34
Replace float valve in toilet cistern near East Dunbartonshire£39
Replace float valve in toilet cistern near East Hampshire£44
Replace float valve in toilet cistern near East Hertfordshire£51
Replace float valve in toilet cistern near East Lindsey£35
Replace float valve in toilet cistern near East Riding£38
Replace float valve in toilet cistern near Eastleigh£42
Replace float valve in toilet cistern near Edinburgh£40
Replace float valve in toilet cistern near Elmbridge£55
Replace float valve in toilet cistern near Epping Forest£54
Replace float valve in toilet cistern near Erewash£38
Replace float valve in toilet cistern near Exeter£36
Replace float valve in toilet cistern near Falkirk£40
Replace float valve in toilet cistern near Fife£40
Replace float valve in toilet cistern near Flintshire£37
Replace float valve in toilet cistern near Gateshead£39
Replace float valve in toilet cistern near Gedling£38
Replace float valve in toilet cistern near Glasgow£39
Replace float valve in toilet cistern near Gloucester£60
Replace float valve in toilet cistern near Guildford£56
Replace float valve in toilet cistern near Gwynedd£32
Replace float valve in toilet cistern near Halton£38
Replace float valve in toilet cistern near Harrogate£35
Replace float valve in toilet cistern near Havant & Waterloo£40
Replace float valve in toilet cistern near Highland£40
Replace float valve in toilet cistern near Horsham£52
Replace float valve in toilet cistern near Huntingdonshire£44
Replace float valve in toilet cistern near Ipswich£46
Replace float valve in toilet cistern near Isle of Wight£40
Replace float valve in toilet cistern near Kings Lynn & West Norfolk£33
Replace float valve in toilet cistern near Kingston-upon-Hull£37
Replace float valve in toilet cistern near Kirklees£40
Replace float valve in toilet cistern near Knowsley£37
Replace float valve in toilet cistern near Lancaster£37
Replace float valve in toilet cistern near Leeds£39
Replace float valve in toilet cistern near Leicester£37
Replace float valve in toilet cistern near Lisburn£33
Replace float valve in toilet cistern near Liverpool£37
Replace float valve in toilet cistern near London£55
Replace float valve in toilet cistern near Luton£52
Replace float valve in toilet cistern near Macclesfield£38
Replace float valve in toilet cistern near Maidstone£45
Replace float valve in toilet cistern near Manchester£39
Replace float valve in toilet cistern near Mid Bedfordshire£49
Replace float valve in toilet cistern near Mid Sussex£51
Replace float valve in toilet cistern near Middlesbrough£40
Replace float valve in toilet cistern near Milton Keynes£48
Replace float valve in toilet cistern near Neath Port Talbot£35
Replace float valve in toilet cistern near New Forest£42
Replace float valve in toilet cistern near Newbury£56
Replace float valve in toilet cistern near Newcastle-under-Lyme£35
Replace float valve in toilet cistern near Newcastle-upon-Tyne£39
Replace float valve in toilet cistern near Newport£34
Replace float valve in toilet cistern near North Ayrshire£38
Replace float valve in toilet cistern near North East Lincolnshire£36
Replace float valve in toilet cistern near North Hertfordshire£51
Replace float valve in toilet cistern near North Lanarkshire£39
Replace float valve in toilet cistern near North Lincolnshire£35
Replace float valve in toilet cistern near North Somerset£37
Replace float valve in toilet cistern near North Tyneside£39
Replace float valve in toilet cistern near North Wiltshire£45
Replace float valve in toilet cistern near Northampton£46
Replace float valve in toilet cistern near Norwich£40
Replace float valve in toilet cistern near Nottingham£38
Replace float valve in toilet cistern near Nuneaton & Bedworth£38
Replace float valve in toilet cistern near Oldham£39
Replace float valve in toilet cistern near Oxford£50
Replace float valve in toilet cistern near Pembrokeshire£26
Replace float valve in toilet cistern near Perth & Kinross£38
Replace float valve in toilet cistern near Peterborough£40
Replace float valve in toilet cistern near Plymouth£31
Replace float valve in toilet cistern near Poole£43
Replace float valve in toilet cistern near Portsmouth£40
Replace float valve in toilet cistern near Powys£42
Replace float valve in toilet cistern near Preston£36
Replace float valve in toilet cistern near Reading£55
Replace float valve in toilet cistern near Redcar & Cleveland£41
Replace float valve in toilet cistern near Reigate & Banstead£56
Replace float valve in toilet cistern near Renfrewshire£38
Replace float valve in toilet cistern near Rhondda, Cynon, Taff£34
Replace float valve in toilet cistern near Rochdale£39
Replace float valve in toilet cistern near Rochester-upon-Medway£45
Replace float valve in toilet cistern near Rotherham£35
Replace float valve in toilet cistern near Salford£39
Replace float valve in toilet cistern near Salisbury£41
Replace float valve in toilet cistern near Sandwell£40
Replace float valve in toilet cistern near Scarborough£35
Replace float valve in toilet cistern near Scottish Borders£45
Replace float valve in toilet cistern near Sefton£36
Replace float valve in toilet cistern near Sevenoaks£52
Replace float valve in toilet cistern near Sheffield£35
Replace float valve in toilet cistern near Slough£54
Replace float valve in toilet cistern near Solihull£39
Replace float valve in toilet cistern near South Ayrshire£38
Replace float valve in toilet cistern near South Bedfordshire£49
Replace float valve in toilet cistern near South Cambridgeshire£45
Replace float valve in toilet cistern near South Gloucestershire£38
Replace float valve in toilet cistern near South Kesteven£39
Replace float valve in toilet cistern near South Lanarkshire£40
Replace float valve in toilet cistern near South Oxfordshire£51
Replace float valve in toilet cistern near South Somerset£32
Replace float valve in toilet cistern near South Tyneside£39
Replace float valve in toilet cistern near Southampton£42
Replace float valve in toilet cistern near Southend-on-Sea£43
Replace float valve in toilet cistern near St Albans£53
Replace float valve in toilet cistern near St Helens£38
Replace float valve in toilet cistern near Stafford£40
Replace float valve in toilet cistern near Stockport£39
Replace float valve in toilet cistern near Stockton-on-Tees£40
Replace float valve in toilet cistern near Stoke-on-Trent£35
Replace float valve in toilet cistern near Stratford-on-Avon£44
Replace float valve in toilet cistern near Stroud£42
Replace float valve in toilet cistern near Suffolk Coastal£45
Replace float valve in toilet cistern near Sunderland£39
Replace float valve in toilet cistern near Swale£44
Replace float valve in toilet cistern near Swansea£35
Replace float valve in toilet cistern near Tameside£39
Replace float valve in toilet cistern near Teignbridge£37
Replace float valve in toilet cistern near Tendring£46
Replace float valve in toilet cistern near Test Valley£42
Replace float valve in toilet cistern near Thamesdown£51
Replace float valve in toilet cistern near Thanet£42
Replace float valve in toilet cistern near The Wrekin£63
Replace float valve in toilet cistern near Thurrock£47
Replace float valve in toilet cistern near Torbay£38
Replace float valve in toilet cistern near Trafford£39
Replace float valve in toilet cistern near Vale of Glamorgan£36
Replace float valve in toilet cistern near Vale of White Horse£50
Replace float valve in toilet cistern near Vale Royal£38
Replace float valve in toilet cistern near Wakefield£39
Replace float valve in toilet cistern near Walsall£40
Replace float valve in toilet cistern near Warrington£39
Replace float valve in toilet cistern near Warwick£40
Replace float valve in toilet cistern near Waveney£42
Replace float valve in toilet cistern near Waverley£54
Replace float valve in toilet cistern near Wealden£47
Replace float valve in toilet cistern near West Lancashire£37
Replace float valve in toilet cistern near West Lothian£42
Replace float valve in toilet cistern near West Wiltshire£45
Replace float valve in toilet cistern near Wigan£38
Replace float valve in toilet cistern near Windsor & Maidenhead£53
Replace float valve in toilet cistern near Wirral£37
Replace float valve in toilet cistern near Wokingham£55
Replace float valve in toilet cistern near Wolverhampton£40
Replace float valve in toilet cistern near Wrexham Maelor£38
Replace float valve in toilet cistern near Wychavon£41
Replace float valve in toilet cistern near Wycombe£54
Replace float valve in toilet cistern near York£35