Repair or replace a cracked toilet bowl?

Replace it if the crack leaks. Toilet bowl crack repair with epoxy or a sealant is a stopgap that buys time until a new bowl goes in. The one crack you can live with for now is a fine line in the glaze, above the water line, with nothing seeping from it.

Types of crack and what to do
CrackWhat it meansWhat to do
Hairline in the glaze, above the water lineA surface crack with no seepageWatch it and check the floor for damp
Below the water lineThe bowl will keep leakingClose the stop valve and plan a replacement
At the baseThe bowl will keep leaking onto the floorClose the stop valve and plan a replacement
Cracked cistern lidThe lid holds no waterAsk the maker or a plumber for a matching lid

Water around the base can have other causes, so dry the area and watch where the water first appears. If it is not coming from a crack, see toilet leaking at the base for what else to check.

Toilet bowl replacement prices

These are published rates from companies in the directory, shown as printed and linked to each company's source.

FROM THE HOMEZYPRO DIRECTORY

Published toilet bowl replacement rates

For the most common unit (per job), the lowest published toilet bowl replacement rates from 10 companies run from S$150 to S$420 per job, to replace a whole toilet bowl; some prices include the bowl. Each figure is one company's own advertised rate with its conditions, not a quote.

See 10 published toilet bowl replacement rates and sources
Lowest matching advertised rate per company, in SGD as published. "From" marks a starting price and ranges are shown in full. Check the source for minimums, GST and inclusions.
CompanyService as listedRateSource
Huat PlumbingToilet Bowl Replacement (Labour)From S$150 per jobhuatplumbing.sg
Prima Technologies Pte. Ltd. (Prima Services)Toilet Bowl Replacement (Labour)From S$150 per jobprimaservices.sg
Hdbplumber Service SGSupply and install toilet bowl setFrom S$250 per jobhdbplumberservice.com.sg
Uncle PlumberWC Installation & SupplierFrom S$250 per jobuncleplumber.sg
Active Plumbing SingaporeSupply & install toilet bowl setFrom S$280 per jobactiveplumbing.sg
SR Power Plumber Pte. Ltd.Conversion of squatting to sitting toilet bowlFrom S$350 per jobsrpowerplumber.com
Ace Plumbing SpecialistSupply & install toilet bowl setFrom S$380 per jobaceplumbing.sg
Home Plumbers SingaporeDismantle and replace a toilet bowl setFrom S$400 per jobhomeplumbers.com.sg
Summer Plumbing ServiceSupply & install toilet bowl setFrom S$400 per jobsgplumbing.com.sg
GD PlumbingSupply & install toilet bowl setFrom S$420 per jobgdplumbing.com.sg

10 companies publish a toilet bowl replacement line, and all 10 price it per job. Their lowest published rates run from S$150 to S$420 per job. The table shows only the lowest and highest, as there is no single middle rate. These are "from" prices as printed, not quotes.

The lines cover different scopes. Some prices include the bowl and some do not, so compare like with like:

  • 2 companies print "Toilet Bowl Replacement (Labour)", from S$150 per job.
  • 5 companies print "Supply and install toilet bowl set" or "Supply & install toilet bowl set", from S$250 to S$420 per job.
  • 1 company prints "WC Installation & Supplier", from S$250 per job.
  • 1 company prints "Conversion of squatting to sitting toilet bowl", from S$350 per job.
  • 1 company prints "Dismantle and replace a toilet bowl set", from S$400 per job.

For a wider look at what goes into the price, see toilet bowl replacement cost.

Who may replace it

PUB says sanitary plumbing works, such as installing, changing or relocating toilet bowls, must be done by a PUB Licensed Plumber. PUB's list of simple works a handyman may do includes replacing a tap or the flushing mechanism in a cistern, but not the bowl itself.

When you compare quotes, ask each company who will do the work on the day. Ask them to check the pipe connection and the floor under the bowl once the old one is off, and to test for leaks after a few flushes. If you rent, speak to your landlord before you book anyone, since the bowl belongs to the flat. For more on which jobs need a licence, see what needs a licensed plumber.

Floor and waterproofing

For HDB flats, HDB's renovation guidelines for building works say bathrooms and toilets must use pre-packed waterproofing screed and a waterproofing membrane before new floor finishes are laid, with the membrane turned up at least 150mm against walls and kerbs. Replacing floor finishes needs an HDB permit.

Replacing a bowl on the existing tiles usually avoids retiling. Before work starts, ask the company whether they expect to lift or replace any tiles, and what they will do if a tile cracks when the old bowl comes off. If the answer involves new floor finishes, the waterproofing and permit points above apply, so ask who will handle them. In a condo, ask the management office about its renovation rules.

If you are thinking of changing the type of toilet at the same time, compare a wall-hung or floor toilet before you choose the new bowl.

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What to do until it is fixed

A leaking crack will not seal itself, so limit the water and the mess until the new bowl is in.

  1. Close the stop valve. Turn off the valve on the pipe behind the toilet so the cistern no longer refills.
  2. Flush to empty. Flush once to empty the cistern, then sponge out the water left in the bowl if the crack is below the water line.
  3. Dry the floor. Mop up, then lay an old towel at the base and check it every few hours.
  4. Photograph the crack. Take clear photos of the crack, the base and the brand or model name for quotes.

When you are ready to book, see toilet repair for companies that list this work, and send each the same photos.

Questions

Can epoxy fix a cracked toilet bowl?

No, not for good. Epoxy or a porcelain sealant can slow seepage from a small crack for a while, but it is a temporary fix. A crack below the water line, at the base or across the trap will keep leaking, so use the repair only to buy time while you arrange a new bowl.

Why did my toilet bowl crack?

Common causes are impact, over-tightened bolts and temperature shock. Something heavy dropped on the rim or into the bowl can crack the porcelain. Bolts tightened too hard at the base or cistern stress the porcelain, and very hot water poured into the bowl can crack it too. Ask the installer not to over-tighten the bolts on the new bowl.

Is a hairline crack in a toilet bowl dangerous?

Not usually, if it is only in the glaze above the water line and nothing seeps. Mark its ends with a pencil and check it from time to time. If it grows, reaches the water line or the floor around the bowl stays damp, treat it as a leaking crack and plan a replacement.

Can I replace just the cistern?

Often, yes, if a cistern that matches your model is available; ask the maker or the company for one. PUB says water service and sanitary plumbing works must be done by a PUB Licensed Plumber, except listed simple works such as replacing a tap or the flushing mechanism in a cistern, so check who your job needs.

Will a new bowl fit the old floor outlet?

It will if its outlet distance matches. Measure from the finished wall behind the bowl to the centre of the floor outlet, and give that figure to the company with photos of the base. If no matching bowl is available, ask what extra work would be needed before you agree to it.

Is a cracked toilet bowl covered by home insurance?

Only if your policy wording covers it, so check before you claim. Look at the sections on accidental damage, fixtures and water damage, and at the exclusions. Keep the photos and quotes, as an insurer may ask for them. If you rent, tell your landlord first, since the bowl belongs to the flat.

Sources

Prices come only from the sourced company rates in the HomezyPro directory, shown with each company and its source.

About this guide

Practical guidance for planning a home job in Singapore. Company prices come from the HomezyPro directory, each linked to its source; rules and safety points link to the agency or manufacturer that sets them. This is not a site inspection, a quote or professional advice for your home.

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