A new shower is mostly a water management job. Whether it stays dry underneath for the next twenty years comes down to the floor fall, the waste, the membrane and how the mixer is set into the wall. Those are decided before anything is tiled, and they are hard to fix afterwards.
Cheeky's Plumbers installs showers across Auckland, from a straight swap of an old acrylic unit to a new tiled wet floor shower in a bathroom that never had one. We plan the waste position, supply pipework and mixer with you, work alongside your waterproofer, tiler or builder, and tell you early whether the job needs building consent.
Pricing: quotes are free, and every job gets a fixed price before we start, so there are no surprises on the invoice.
Shower Replacement Jobs We Handle Across Auckland
- Shower installation
- New shower install
- Shower waterproofing
- Wet floor shower
- Level entry shower installation
- Replace shower with new unit
Tiled level-entry or a moulded unit?
Most new showers fall into two camps, and the choice changes the cost, timeline and paperwork.
A moulded acrylic or fibreglass unit comes with its own tray and walls. It is quick to fit, the fall is built into the tray, and it suits rentals and second bathrooms. A tiled shower, especially a level-entry or wet floor design with no step, looks better and suits anyone with limited mobility, but it relies on a site-applied membrane and a floor formed to fall to the waste. If your current shower only drips, leaks or runs cold, shower repairs may solve it without a new install.
- Acrylic or moulded unit: faster install, fewer trades, usually a like-for-like swap
- Tiled shower on a tray or with a hob: moderate build, membrane under the tiles
- Level-entry or wet floor shower: no step, floor graded to a floor waste or linear drain
Falls, membranes and the floor waste
For a shower with level access, BRANZ explains that E3/AS1 asks for a fall of at least 1:50 towards the floor waste, extending 1,500 mm from below the shower rose. An enclosed shower with upstands needs at least 1:60. Getting this wrong is the most common reason water ends up on the bathroom floor instead of down the drain.
Under the tiles, the waterproof membrane is what actually keeps water out of the framing. Acceptable Solution E3/AS2 cites the Waterproofing Membrane Association code of practice for internal wet-area membranes, and Level recommends flood testing the waterproofed floor before tiles go on. On timber or plywood floors the whole floor should be waterproofed, not just the shower area.
Membrane work is a specialist trade. The Government has announced work on a new licensed building practitioner class for internal waterproofing, but final details were not confirmed at the time of writing. We coordinate with qualified waterproofers and seal waste and mixer penetrations the way the membrane system requires.
How It Works
Does a new shower need building consent?
It depends on what is changing. MBIE guidance treats replacing or repositioning a shower within an existing bathroom in a house as exempt building work. Adding a shower where there was none increases the number of sanitary fixtures, and councils treat that as needing consent.
Tiled showers sit in a grey area. Auckland Council guidance says a tiled wet area shower needs consent because the membrane and carpentry are critical building work, while a 2024 MBIE determination found that installing a wet area membrane while replacing linings in an existing house can fall within the Schedule 1 exemption for linings. Lowering a concrete slab or altering floor framing for a level-entry shower moves you firmly back into consent territory.
The building owner is responsible for deciding whether work is exempt, so we talk it through before you commit. If consent is needed we supply the plumbing details, and it often makes sense to treat the job as part of wider bathroom renovation plumbing.
Choosing a mixer that suits your hot water
The mixer is set into the wall before tiling, so it has to be right first time. A mixer designed for mains pressure can perform badly on a low pressure header-tank system, and some rain heads need more flow than an older cylinder gives. We check your hot water and cold supply before recommending a valve.
Thermostatic mixers hold a set temperature when someone else turns on a tap, which is worth considering for children and older users. Hot water to a new shower should also be temperature-limited, usually through tempering valves at the cylinder, and we check yours is working while we are there. If pressure is the real problem, we can look at low water pressure across the house rather than just at the shower.
What affects the cost of a new shower
Every shower installation is quoted for free once we have seen the space, and the price is fixed before work starts. The main things that move the price are:
- Moulded unit swap versus a tiled or wet floor build
- Moving the waste, especially through a concrete slab
- Floor framing changes to create a level-entry fall
- Linear drains and concealed or thermostatic mixers
- Whether building consent and inspections are involved
Showers in Auckland homes
Villas and bungalows on piles usually give good access underneath, so moving a shower waste is often straightforward, though old timber floors may need new substrate before a membrane goes down. Slab homes, including many 1970s brick and tile houses and newer townhouses, make waste changes harder because the concrete may need cutting.
In 1990s monolithic-clad homes, a shower on an exterior wall deserves extra care at every penetration. Upstairs townhouse bathrooms often have little ceiling space below, so the waste route needs planning early. If an old shower has been leaking, we can arrange leak detection first so you are not tiling over damp framing.
Why Choose Cheeky's Plumbers for Shower Replacement
Falls checked before tiling
We check the waste position and floor fall before the membrane and tiles go down, when a fix is still cheap. Pipework is pressure tested before the walls close.
Mixer matched to your system
We look at your hot water and cold supply first, so the valve and head you choose actually perform on your pressure.
Straight answers on consent
We tell you upfront whether your shower is likely to be exempt or need consent, and supply the plumbing details if it does.
Photo record of hidden work
Our job report includes photos of the rough-in and waste before it is covered, useful for the council, your insurer or a future buyer.
Shower Replacement FAQs
Do I need consent to put in a new shower in Auckland?
Replacing or moving a shower within an existing bathroom is usually exempt. Adding a new shower, or changing the slab or framing for a level-entry floor, usually needs consent. Auckland Council treats tiled wet area showers as needing consent, so ask us early.
What fall does a wet floor shower need?
E3/AS1 asks for at least 1:50 towards the floor waste for a level-access shower, over 1,500 mm from below the rose. Enclosed showers with upstands need at least 1:60.
Can you build a level-entry shower on a timber floor?
Often yes. The framing may need lowering or packing to create the fall, and the whole floor should be waterproofed. That framing work usually means building consent.
What mixer should I choose for a new shower?
One that suits your hot water pressure. Thermostatic mixers hold temperature steadily and suit families with children or older people. We check your system before you buy.
How much does shower installation cost?
We give a free fixed-price quote after seeing the space. Moulded unit swaps cost least; tiled wet floor showers with slab or framing work cost more.
Shower Replacement Across Auckland
Our shower replacement team works in every Auckland suburb. Find your local plumbers:
Related Services
Toilet Repairs
Running toilets, leaking cisterns, blocked pans and wobbly bases fixed fast.
View serviceTap & Mixer Repairs
Dripping taps, stiff mixers and leaking spouts repaired or replaced.
View serviceBathroom Renovation Plumbing
Plumbing for bathroom renovations, from moving a toilet to a full strip-out with tiled showers and wall-hung vanities.
View serviceKitchen Plumbing
Sinks, dishwashers, fridge water lines, filtered taps and instant boiling water taps installed and repaired.
View serviceBlocked Drains
Blocked sinks, showers, toilets and gully traps cleared fast.
View serviceHot Water Cylinders
Hot water cylinder replacement across Auckland.
View serviceSources and further reading
- BRANZ: Waterproofing tiled showers
- Level (BRANZ): Waterproofing tiled showers
- Building Performance: 4.7 Alteration to existing sanitary plumbing (exempt building work)
- Auckland Council: Kitchen and bathroom renovations
- Waimakariri District Council: Tiled showers, do I need a consent?
- MBIE Determination 2024/054: Two tiled showers
- Building Performance: Code of practice for internal wet area membrane systems (E3/AS2)
- Mitre 10 Trade: Waterproofing licensing changes
