No two bathrooms cost the same, and any builder who quotes a firm price before seeing your space is guessing. What we can do is show you the factors that drive the budget — so when you get a quote, you understand exactly what you're paying for.
1. The size and layout of the room
A compact ensuite uses less tile, less waterproofing and fewer fixtures than a large family bathroom — so it's usually the most affordable to renovate. The bigger driver, though, isn't floor area: it's whether you're keeping the existing layout or moving things around.
Leaving the toilet, vanity and shower roughly where they are keeps plumbing and drainage simple. Moving fixtures to new positions means new pipework, possible drainage changes, and often a building consent — all of which add cost. If budget is tight, keeping the layout is the single biggest saving available.
2. What's hidden behind the walls
Once the old bathroom comes out, we sometimes find issues the previous owner papered over — rotten framing, failed old waterproofing, or plumbing that no longer meets standard. Older Auckland homes (think post-war bungalows and 1960s–70s houses) are more likely to spring a surprise. A good builder builds a sensible contingency into your plan so a discovery doesn't blow the whole budget.
3. Fixtures, tiles and finishes
This is the part you control most. The same room can be finished with smart, mid-range fittings or with premium imported tapware, stone, and large-format tiles — and the difference is significant. Tiling labour also scales with complexity: small mosaics, feature walls, and intricate patterns take far longer to lay than large, simple tiles.
Our advice: spend where it shows and lasts (tapware, the shower, waterproofing) and be pragmatic elsewhere. We'll help you put the money where it counts.
4. Waterproofing and the "unseen" work
Waterproofing, falls, membranes and substrate prep are invisible once the tiles go on — but they're the difference between a bathroom that lasts decades and one that leaks in two years. This is not the place to cut corners, and it's exactly why we specialise in bathrooms. Done right, it's backed by up to a 10-year waterproofing product warranty.
5. Council consent and compliance
If your project needs a building consent, that adds council fees and time. Whether you need one depends on the scope of work — we cover this in detail in our guide on bathroom renovation consent in NZ. We'll tell you up front whether your project needs consent and factor it into your quote, so there are no surprises.
6. Trades and project management
A bathroom pulls together plumbers, electricians, waterproofers, tilers and glaziers. Coordinating them so nobody's waiting on anybody is what keeps a job on time — and time is money. When you hire one team to manage the whole job, you're paying for that coordination, but you're also protected from the cost blow-outs that happen when trades are managed badly.
So how do you get a real number?
The only honest way is a site visit and an itemised quote. We come to you, measure up, talk through your ideas, and come back with a clear, line-by-line quote — so you can see exactly where every dollar goes. There's no obligation and no pressure.
Want a real, itemised number for your bathroom?
Tell us about your project and we'll come back with honest advice and a clear quote — usually within one business day.
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