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What should you check on a toilet flush button?

A flush button is the part you press on the cistern, and a quote should say whether the fault is that button, a cable, or something you cannot see. This page does not tell you to open the cistern or to turn any valve.

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By the QuoteZila editorial team. Editorial policy.

What is the button you are pressing?

In Cheshire, a toilet flush button is the control on the cistern, not the pan and not the soil pipe. The cisterns this guide starts with are the ones people describe in Crewe, Nantwich and Sandbach. People elsewhere in the UK can post the same kind of job. This page does not print a figure, because we could not find two dated public sources that agree on one. It does not describe how to fit one.

Two round buttons, one above the other or side by side, are a dual flush: a shorter flush and a longer flush. A single button is a different plate. A handle on the front, or a chain from a high cistern, is not a button at all. Name what you actually have before you compare quotes. QuoteZila is new, so how many replies you get depends on how many businesses near you have joined [QZ5].

What can you see without lifting the lid?

Stand in the room and write five things. You do not need a tool.

  • Whether the button moves, sticks halfway, or feels solid.
  • Whether one button of a pair works and the other does not.
  • Whether the pan refills and then keeps running after you have walked away.
  • Whether the cistern sits on the pan, or is a separate box on the wall, or is hidden behind a panel you can see but not remove.
  • Whether the floor around the pan is dry.

A photo of the plate, taken in daylight, is enough. Do not unscrew the plate. Do not lift the ceramic lid. Do not reach into the cistern. If a cabinet or a boxed-in panel covers the cistern, say that the cistern is hidden. Taking that cabinet apart is not part of this look.

WaterSafe is an online directory of plumbers and water specialists, and approved contractors issue certificates of compliance [S1]. A flush button on an existing cistern is not, by itself, a claim that a certificate will be issued. Ask the plumber whether this visit is that kind of work, and look the registration up yourself. The directory is on the WaterSafe site [S1].

When should you stop and post a job?

Stop the look, and stop using the pan, if water is on the floor, if the pan is overflowing, or if you can smell sewage and you cannot see where it is coming from. Those are descriptions for the first line of the post, not problems to investigate with a tool.

Stop as well if the only way to see the cistern is to cut a panel, move a basin, or take a wall apart. That is building work, and it needs its own line on a quote. GOV.UK says you might need building regulations approval to install a bathroom that involves plumbing, and that you could need approval for works that are not on the example list, so check with a building control body if you cannot tell [S2]. A button you can already see is not that example. A new bathroom is. The page is on GOV.UK [S2].

GOV.UK: find your local council for building control. QuoteZila is not affiliated with this organisation.

What should the quote name?

Citizens Advice says a quote is a fixed price and an estimate is a rough guess, so get the button visit in writing [S3]. Ask the paper to say:

  • whether they are pricing the button and plate only
  • whether a cable, a lever or an internal part is included, or excluded because they have not opened the cistern yet
  • whether a new cistern is a second total you can refuse
  • whether VAT is included
  • how long the price lasts

Some traders charge to prepare a quote, so ask before they come [S3]. If they want a deposit for a small part, Citizens Advice says not to agree more than 25% where a deposit cannot be avoided, and to take a receipt [S3].

A business must register for VAT when taxable turnover for the last 12 months goes over £90,000, or when it expects to go over £90,000 in the next 30 days [S4]. Ask which kind of total you were given.

Replacing the cistern is the longer job. Plumber cost is about reading a plumbing price, not a button tariff. Plumbers and bathroom fitters are the trade pages.

How is a button different from a cistern replacement?

A plate can be changed while the cistern stays. A cistern replacement can mean a new tank, new fittings, and sometimes a different pan. If the quote uses both phrases, ask which one you would be accepting. Do not let a button price be compared with a full replacement price.

If the buttons are on a concealed frame behind a tiled wall, say "concealed" in the post. The visible plate is still all you should describe. The frame, the tiles and the soil pipe are separate lines if the plumber says they have to come off. You can decline those lines.

What should you put in the job post?

These are examples, not taken from real job posts.

  • The large button works and the small button stays down. The lid has not been lifted. Ask for a quote that says whether the price is the plate only.
  • The button moves and the pan does not flush. Water is not on the floor. Ask the plumber to say what they will check before they name a new cistern.
  • Water runs into the bowl every few minutes. You have not turned any valve. Ask for a visit, and ask them to price any new cistern separately.

Handymen sometimes advertise small bathroom jobs. Ask them the same question you would ask a plumber: is this the button, or is it the cistern? If they will not write the answer, Citizens Advice says to be wary of a trader who will not put a quote in writing [S3].

This page is general information, not professional or legal advice. QuoteZila does not check Gas Safe, WaterSafe, NFRC, NICEIC or other registrations against the register on your behalf: look them up yourself.

Honest status: QuoteZila is new. We're starting in Cheshire, beginning with Crewe, Nantwich and Sandbach, and growing area by area. Anyone in the UK can still post a job or register a business. How fast you get quotes depends on how many local businesses have joined near you. Businesses can register and receive jobs straight away. We don't check insurance, qualifications or registrations, so please check these yourself before you hire.

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Questions about flush buttons

Why does the flush button do nothing?

From the room you can only say what you see: the button does not move, it moves and the pan stays dry, or water is already running. The cause may be the button, a link behind the plate, or a part inside the cistern. This page does not open that cistern. A plumber's quote should name which of those they are pricing.

Should I take the lid off?

No. Leave the lid on, leave any valve as you found it, and do not pull a cable or a chain. If water is on the floor, stop using the pan and say so in the job post. A look from outside the cistern is the whole of the check this guide describes.

Is a new button the same job as a new cistern?

Only if the quote says so. A plate and a button can be one line. A new cistern, a close-coupled pan, or a soil-pipe alteration is a different line. Ask for them separately so you can decline the larger job. The cistern page is the longer replacement, not this button.

Does QuoteZila check plumbers?

No. We don't check insurance, qualifications or registrations, so please check these yourself before you hire. You can report a quote or a business from your job page.

Can I post a flush-button job?

Yes. Say what the button does when you press it, whether there is one button or two, and add a Cheshire postcode. Up to five matched local businesses can quote. QuoteZila is free for customers and local businesses.

Related trades

Related pages

  • Toilet Repairs: What to Ask a Plumber. Toilet repairs cover the pan, the flush and a leak at the base. This guide says what to describe, and it does not tell you to open the cistern.
  • Blocked Sink: What to Tell a Plumber. A blocked sink is waste that will not leave the basin. This guide says what to write in the job, and how that differs from a trickle or a garden puddle.

Sources

  1. QZ1: QuoteZila product fact. QuoteZila home and jobs copy.
  2. QZ2: QuoteZila product fact. QuoteZila terms, customers.
  3. QZ5: QuoteZila product fact. QuoteZila FAQ.
  4. S1: WaterSafe, WaterSafe. Accessed 2026-10-25. https://www.watersafe.org.uk/
  5. S2: Building regulations approval, GOV.UK. Accessed 2026-10-25. https://www.gov.uk/building-regulations-approval
  6. S3: Before you get work done on your home, Citizens Advice. Accessed 2026-10-25. https://www.citizensadvice.org.uk/consumer/getting-home-improvements-done/before-you-get-building-work-done/
  7. S4: Register for VAT, GOV.UK. Accessed 2026-10-25. https://www.gov.uk/register-for-vat