How much does it cost to replace a toilet in NZ?
Replacing a toilet in NZ costs about $700–1,300 all-in for a standard close-coupled suite, $1,100–2,200 for back-to-wall and $1,500–3,500 for wall-hung. Prices by type, what a plumber charges, the S-trap/P-trap trap, and a worked example.
By Bathroom Renovation NZ
Key takeaways
- A like-for-like close-coupled toilet costs about $700–1,300 supplied and installed in Auckland; back-to-wall $1,100–2,200; wall-hung $1,500–3,500; a smart toilet $2,500–8,000+ (Superior Property Services, updated 9 October 2026).
- The suite itself is often the smaller part: Mitre 10 listed close-coupled suites at $359 (Nouveau Mador) and $609 (Englefield Valencia) on 1 November 2026.
- Plumber labour for a straight swap is about $300–500 for 2–4 hours in Auckland, plus $50–80 to take the old toilet away.
- You need a licensed plumber: the PGDB says homeowners cannot fix or unfix a plumbing fixture. Replacing the cistern's ball cock yourself is allowed.
- Replacing a toilet in the same place needs no building consent. Adding a second one does, because the number of sanitary fixtures goes up.
- Buying the wrong trap type (S-trap vs P-trap) is the expensive mistake: reworking the drainage to suit costs about $1,200–3,000.
Replacing a toilet in New Zealand usually costs $700–1,300 all-in for a standard close-coupled suite, $1,100–2,200 for a back-to-wall and $1,500–3,500 for a wall-hung pan with an in-wall cistern, like for like (Superior Property Services, Auckland, updated 9 October 2026). The suite is often $350–600; the rest is a licensed plumber's 2–4 hours and disposal. No consent is needed if it stays in the same place.
How much does a new toilet cost, by type?
| Type | Toilet only | All-in, supplied and installed |
|---|---|---|
| Close-coupled (cistern sits on the pan) | $250–900 | $700–1,300 standard, $1,500–2,200 premium |
| Back-to-wall (pan against the wall, cistern on it or concealed) | $500–1,800 | $1,100–2,200 |
| Wall-hung (pan on the wall, cistern in a frame inside it) | $800–2,200 pan and frame | $1,500–3,500; $4,000+ converting from a floor-mounted toilet |
| Smart toilet (bidet seat, heating, auto flush) | $2,000–7,000+ | $2,500–8,000+, including $300–800 of electrical work for a power point |
For a sense of the retail end, Mitre 10 listed the Nouveau Mador close-coupled suite (P-trap) at $359, the Nouveau Crest back-to-wall suite at $499 and the Englefield Valencia close-coupled suite (Vario trap, 160–235 mm set-out) at $609 when we checked on 1 November 2026. Prices change, so check the day you buy.
How much does a plumber charge to replace a toilet?
For a straight swap, about $300–500 in Auckland: 2–4 hours to isolate the water, remove the old pan and cistern, set the new one on the existing waste, connect it, seal it and test it. A back-to-wall suite takes a bit longer, at about $350–550 for 3–4 hours, and taking the old toilet away is usually another $50–80 (Superior Property Services). Expect the bill to grow if the floor flange, the waste connector or the stop valve has to be replaced too.
Do you need a plumber to install a toilet in NZ?
Yes. The Plumbers, Gasfitters and Drainlayers Board says homeowners cannot do “any work involved in fixing or unfixing any pipe, plumbing fixture or appliance”, which covers taking out one toilet and connecting another. What you can do yourself is “replace or repair taps, ball cocks and plugs”, so a running cistern with a worn inlet valve is a DIY job; a new pan is not. Our guide to who has to be licensed explains how to check a plumber on the public register.
Does replacing a toilet need building consent?
No, if it goes back in the same room and the house ends up with the same number of toilets. Schedule 1 clause 35 of the Building Act exempts alterations to existing sanitary plumbing as long as the total number of sanitary fixtures in the building does not increase, and the work is done by an authorised plumber. Moving the toilet within the room keeps the count the same. Adding a second toilet raises it, so it needs a consent: Superior Property Services puts a new or second toilet at $3,500–9,000+ all-in. The clauses in full are in our bathroom consent guide.
S-trap or P-trap: what to check before you buy
This is the mistake that turns a $1,000 job into a $3,000 one. An S-trap toilet drains straight down into a waste in the floor; a P-trap drains backwards into a waste in the wall. Buy the wrong one and the drainage has to be reworked to suit, which Superior Property Services puts at $1,200–3,000. Before you buy, look behind the pan to see which way the waste goes.
- S-trap (floor waste): measure the set-out, from the finished wall behind the toilet to the centre of the waste in the floor. Suites list the set-out range they fit; the Englefield Valencia above fits 160–235 mm.
- P-trap (wall waste): measure the height of the waste pipe's centre above the floor, and check the new pan's outlet lines up.
- Vario or universal trap: some suites adjust to fit a range of S-trap set-outs and P-trap positions. They cost a little more and save a lot when you are not sure.
- Footprint: a new pan with a smaller base can leave a ring of unfaded or damaged floor where the old one sat. If the floor is vinyl, see the next section before anyone lifts it.
A worked example: swapping a tired close-coupled toilet
A 1990s Auckland house. The old close-coupled toilet runs constantly and the pan is stained. It drains into the floor (S-trap) with a 190 mm set-out, so a suite with a 160–235 mm adjustable trap fits without touching the drain.
| Item | Range | Basis |
|---|---|---|
| Toilet suite: Englefield Valencia, Vario trap | $609 | Mitre 10, 1 November 2026 |
| Plumber, remove old and install new, 2–4 hours | $300–500 | Superior Property Services, Auckland |
| Disposal of the old toilet | $50–80 | Superior Property Services |
| Indicative total | about $960–1,190 | Inside the $700–1,300 all-in band for a standard close-coupled replacement |
Had the house had a wall waste and the owner bought an S-trap suite by mistake, the same job could have doubled or tripled. And had the only problem been the running cistern, a new fill valve at about $230–330 all-in would have done it.
Should you repair the toilet or replace it?
Repair it if the pan is sound and the fault is in the cistern. Replace it if the pan is cracked, it leaks at the base, it is a single-flush model using far more water than a modern dual flush, or the parts are no longer made. Superior Property Services gives these repair prices, all-in, for comparison:
| Repair | All-in |
|---|---|
| Fill valve (cistern keeps running or refills slowly) | $230–330 |
| Flush valve (weak flush) | $200–300 |
| Cistern-to-pan seal (leak between the two) | $130–180 |
| Cistern only | $250–600 |
| Toilet seat (part only) | $40–200 |
What if the floor is old vinyl?
WorkSafe says homes built before 2000 may contain asbestos, including in vinyl flooring and its backing. A toilet swap normally sits on top of the floor and does not disturb it, but if the new pan's footprint means lifting or cutting old vinyl, test it first. Our asbestos guide covers what to do.
How much does Bunnings charge to install a toilet?
Bunnings Australia arranges toilet replacement from A$299 (excluding NSW). We could not find an equivalent service on Bunnings New Zealand's in-home services page when we checked on 1 November 2026, so in New Zealand you buy the suite and book a licensed plumber separately.
Replacing the toilet as part of a bathroom renovation
If the toilet is going because the whole bathroom is, it stops being a separate line: the plumber who refits the vanity and shower sets the new pan in the same visit, after the floor is tiled. Our bathroom renovation cost guide breaks that budget down, and the measure-and-design visit prices your room line by line, toilet included.
Questions
How much does it cost to replace a toilet in NZ?
About $700–1,300 all-in for a standard close-coupled toilet replaced like for like in Auckland, $1,100–2,200 for a back-to-wall, $1,500–3,500 for a wall-hung and $2,500–8,000+ for a smart toilet (Superior Property Services, updated 9 October 2026).
How much do plumbers charge to fit a new toilet?
About $300–500 for a straight swap of a close-coupled toilet, 2–4 hours, and $350–550 for a back-to-wall, 3–4 hours, in Auckland. Disposal of the old toilet is usually another $50–80 (Superior Property Services).
Can I replace a toilet myself in NZ?
No. The Plumbers, Gasfitters and Drainlayers Board says homeowners cannot fix or unfix a plumbing fixture, so removing and connecting a toilet is a licensed plumber's work. You can replace a ball cock, a tap or a plug yourself.
Do I need consent to replace a toilet?
Not to replace one in the same room with the same number of toilets in the house: Schedule 1 clause 35 of the Building Act exempts it when an authorised plumber does it. Adding a second toilet increases the fixture count and needs a building consent.
How do I know if I need an S-trap or P-trap toilet?
Look at where the old toilet's waste goes. Into the floor is an S-trap: measure the set-out from the wall to the centre of the floor waste. Into the wall is a P-trap: measure the height of the waste. Buying the wrong one can mean $1,200–3,000 of drainage work.
Sources
- Superior Property Services, toilet replacement cost NZ (updated 9 October 2026)
- Mitre 10, Englefield Valencia close-coupled toilet suite (checked 1 November 2026)
- Mitre 10, Nouveau Mador toilet suite (checked 1 November 2026)
- Mitre 10, Nouveau Crest back-to-wall toilet suite (checked 1 November 2026)
- Plumbers, Gasfitters and Drainlayers Board, advice for consumers
- Building Act 2004, Schedule 1 (legislation.govt.nz)
- WorkSafe, asbestos in the home
- Bunnings Australia, toilet installation service
Published 1 November 2026, last updated 1 November 2026 by Bathroom Renovation NZ. Every figure and rule on this page is quoted from a source we read in full on the checked date. See our editorial policy.