Plumbing · Croydon, London
Toilet Repair in Croydon
A toilet that runs, rocks or refuses to flush is a small fault with large consequences: a running cistern can waste water all night, and a leak at the pan can soak a ceiling below. [Proper Plumber Croydon](/) answers on 07898 116196 at any hour and sends toilet repairs to independently owned local partner companies, who repair what is repairable and tell you plainly when a cistern is beyond saving.
Published UK prices are modest. A fill or flush valve swap typically costs £60 to £100, with quotes clustering around £70 to £95, and replacing a whole cistern runs from about £100 to £250. These are published ranges, not our quotes, and the partner company confirms the actual price in writing before they start work on yours.
Hard water is the quiet cause of most Croydon cistern faults. Thames Water's Croydon East supply measured 308 mg/l as calcium carbonate in 2025, and scale grips the seal of a fill valve, fouls the float and furs the flush mechanism. A valve that fails every few years in a soft-water town may fail sooner here.
Old toilets in the Victorian terraces of Addiscombe and Woodside, and the interwar semis of Shirley, often have cisterns whose parts are no longer stocked. A repair on those is a matter of fitting a modern universal valve set, which is usually quicker and cheaper than most people expect.
If the toilet is blocked rather than broken, the fault lies in the drain and the answer is different; the page on blocked drains covers that.
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What We Do
Toilet Faults and What Usually Causes Them
Most toilet faults are in the cistern, and most cistern faults are in two small valves.
Running Cisterns and Phantom Refills
Water trickling into the pan or the cistern refilling by itself points to a worn flush valve seal or a fill valve that no longer shuts. Limescale holds the seal off its seat. The fix is usually a new valve, and it should be done soon, because the waste shows up on your water bill.
Weak or Incomplete Flushes
A poor flush can come from a low water level, a worn flush valve, a scaled-up siphon or blocked rim jets under the pan. The partner company checks the water level and the flush mechanism before touching the pan, because a cheap adjustment often cures it.
Leaks at the Pan, the Cistern and the Floor
A leak at the pan connection, the cistern bolts or the supply pipe shows as damp around the base. Pan connectors and washers perish, and a loose seat can rock the pan. Water dripping through the ceiling below is the sign to act quickly and isolate the supply.
The Benefits
How a Toilet Repair Is Done Properly
A small repair deserves the same method as a large one.
Isolate, Then Inspect
The partner company shuts the supply at the service valve, drains the cistern and inspects the valves, seals and connectors by eye. Faults are shown to you, so the quote is based on what was found, not what is assumed.
Parts That Meet the Regulations
Replacement fill valves and flushing mechanisms must comply with the Water Supply (Water Fittings) Regulations 1999, including the backflow protection built into modern fill valves. WRAS-approved parts are the standard to ask for.
Repair or Replace, Stated Honestly
If a cracked cistern or an old pan is beyond economic repair, the partner company says so and quotes a replacement in writing. If a £70 valve will do, that is what you are told.
Good to Know
Quick Checks Before You Ring
A few seconds at the cistern helps the first visit.
Signs a Toilet Needs Attention
Any one of these is worth a call.
- Cistern refilling when nobody has flushed
- Hissing or dripping from the fill valve
- Handle limp, sticking or needing two pulls
- Damp patches around the base of the pan
- Water stains on the ceiling below
What You Can Do Right Now
These limit the damage.
- Turn the small service valve on the supply pipe clockwise
- Lift the lid and look for a float stuck on the side
- Mop and place a towel at the base
- Do not keep flushing a leaking toilet
- Photograph the damp for the written quote
Why Us
Toilet Help Across Croydon, SE25 and Shirley
A short job still deserves a proper account.
Old Cisterns in Older Streets
Victorian terraces around Lower Addiscombe Road often still have high-level or early low-level cisterns with discontinued parts. Fitting a modern universal valve set is the economic route, and the partner company explains it before you pay.
Upstairs Leaks Get Priority Treatment
An upstairs toilet leaking into a ceiling is the case that grows fastest. Isolate the supply at the stopcock or the small service valve, ring us, and we match the job to the partner company who can get to you soonest.
A Named Company on Your Phone
We text you the partner company's name before they arrive. They quote, repair, invoice and take payment directly, and if the fault comes back you ring us and we chase it.
When the problem is in the drain and not the cistern, the page on blocked drains explains what happens next, and a leak that has reached a ceiling needs leak detection and repair. A toilet that is part of a wider refit belongs with bathroom installation. If water is gushing, treat it as an emergency. We work in Addiscombe, South Norwood and Shirley. See all services.
What Toilet Repair Covers
Toilet repair covers faults in the cistern, flushing mechanism, fill valve, supply connection, pan connector and seat fixings. Most are fixed in a single visit with parts the partner company carries.
Fittings that connect to the mains must meet the Water Supply (Water Fittings) Regulations 1999, which is why backflow-protected fill valves are standard. Waste connections follow Part H of the Building Regulations.
What Affects the Price of a Toilet Repair
The Part and the Age of the Cistern
A standard valve swap is the lowest price. An old or cracked cistern that cannot take modern parts is more, and a full replacement is more again.
Access and Time of Day
A toilet boxed in with pipework takes longer to reach. Out-of-hours visits usually carry a higher call-out, and the partner company confirms any premium in writing first.
Getting More Years From a Cistern
Descaling and Seals
Limescale on the fill valve and flush seal is the commonest cause of repeat faults in hard water. If the cistern is otherwise sound, replacing the seals and valves together, rather than one at a time, saves a second call-out.
Replacing a Dual-Flush Mechanism
A modern dual-flush set uses less water per flush than a single-flush syphon, and fits many older cisterns. It is a small upgrade that can cut water use, which matters on a metered Thames Water bill.
When the Pan Itself Is Failing
Hairline cracks, a pan that rocks despite fresh fixings or a seat hinge that has corroded away are all signs a replacement toilet is sounder than another repair. A written quote shows both options side by side.
Choosing Between a Quick Fix and a Proper One
Why a Cheap Fix Sometimes Fails
Taping a float or wedging a flush handle may quiet a cistern for a day, but the fault returns. A new valve set seated cleanly in a descaled cistern is the repair that stays done, and it is usually a single short visit.
Noise, Water Use and the Neighbours
A fill valve that screams as the cistern refills can vibrate through a terrace party wall, and a leaking one wastes metered water. Both are cured by replacing the valve with a quiet, backflow-protected model.
What a Written Price Should Show
For a small job, the quote can be a single line: the part, the labour and any call-out premium. Having it in writing before the work begins is the same standard we apply to a full bathroom.
Frequently Asked Questions
How much does a toilet repair cost in Croydon?
Published UK figures put a fill or flush valve swap at roughly £60 to £100, with many quotes clustering around £70 to £95. Replacing a whole cistern costs more, from about £100 to £250. These are published ranges rather than our quotes, and the partner company gives a written price after looking at the actual fault.
Why does my toilet keep running after I flush?
The flush valve seal is probably worn or held open by limescale, or the fill valve is not shutting off properly. Croydon East water measured 308 mg/l as calcium carbonate in 2025, which is very hard and shortens the life of these parts. A new valve usually cures it, and fixing it promptly stops water being wasted.
Can I stop a leaking toilet myself until help arrives?
Yes. Turn the small service valve on the supply pipe behind or beside the toilet clockwise until it is closed, and the leak from the cistern stops filling. If there is no service valve, close the main stopcock. Do not keep flushing, and mop the floor so the damp does not spread. Once the water is off, the partner company can fix the fault in daylight without a flood to deal with.
Why is the toilet flush weak or only half effective?
Common causes are a low water level in the cistern, a worn flush valve, scale in the siphon or blocked rim jets under the pan. The partner company starts with the cheapest checks, such as the water level and the lift mechanism, before suggesting parts. A weak flush is usually a mechanism fault, not a drain blockage.
Is the toilet leaking from the base a serious problem?
It can be. Damp at the base usually comes from a failed pan connector or a loose pan, and the water can soak the floor and the ceiling below. In a Victorian terrace with timber floors, that can lead to rot. Isolate the supply, stop using the toilet and ring for a repair. Tell the partner company how long it has been leaking, as that helps them judge whether the floor has been affected.
Are the parts in an old toilet still available?
Often not for the original brand, but modern universal fill and flush valves fit most cisterns. The partner company will tell you if the cistern itself needs replacing. Fittings must comply with the Water Supply (Water Fittings) Regulations 1999, so approved parts are used even in older bathrooms. Keep the old parts if you can, since showing them to the partner company can speed up the match.
Should I repair the toilet or replace it?
Repair when the problem is a valve, seal or connector, since those are cheap and quick. Replace when the pan or cistern is cracked, the porcelain is crazed or the parts cannot be obtained. The partner company will give you both prices in writing if the choice is close. Replacement costs more up front, but it can be sensible if the porcelain is damaged beyond a simple valve change.
What if the toilet is blocked rather than broken?
A blockage sits in the waste pipe or drain, not the toilet mechanism, and plunging should be a first step. If the water rises or other fixtures gurgle, the drain is involved and the blocked drains service is the right call. Do not keep flushing, because the water has nowhere to go. Rubber gloves and a proper toilet plunger are worth trying first, but stop if the water level keeps rising.
Do you repair toilets in flats?
Yes. In a flat, the partner company will ask about access and, for upper floors, whether a leak could affect a neighbour below. Isolate the supply at the service valve first, tell the neighbour if water is coming through, and let us know the building details when you ring. Mention any shared pipework, because a blocked communal stack is a matter for the building rather than one flat.
Can a toilet be repaired in the middle of the night?
The line is open 24 hours, so you can report a leak at 3am. Whether a partner company attends overnight depends on the severity, and out-of-hours rates are usually higher. They confirm the price in writing before starting, and we do not promise arrival times. Closing the service valve usually stops the problem long enough for a daytime visit if the situation is not severe.
Does a toilet repair affect my water bill?
A running cistern can waste a lot of water over a month, and it may show on a metered bill. Fixing the valve usually pays for itself quickly. Ask the partner company to confirm that the cistern shuts off cleanly after the repair. It is worth checking the meter before and after the repair, as a falling reading confirms the leak has stopped.
