Where your bathroom renovation money goes in Melbourne

By the WTD team · Updated June 2026

A standard Melbourne bathroom renovation runs $17,000 to $28,000, and roughly 60% of that is labour and waterproofing you never see. Here's where every dollar of a typical $24,000 job actually goes.

Quick answer — where a $24,000 Melbourne bathroom goes

The 40% you never see

The single biggest surprise for most Melbourne owners is how much of the bill is labour and compliance rather than the things you can point at. Roughly 40% of a standard bathroom goes on trades labour and waterproofing — work that's hidden behind the walls and under the tiles the day the job finishes. You're paying for a plumber, tiler, electrician and often a builder to coordinate them, each on a day rate, plus a waterproof membrane that's the most important thing in the room and completely invisible once it's tiled over.

Why labour is the largest line

A standard main bathroom takes most trades 3–4 weeks to cycle through, and Melbourne trade rates reflect that. The sequencing matters too: the waterproofer can't start until the plumbing rough-in passes, the tiler can't start until the membrane cures, and the fit-off can't happen until the tiling is done. That dependency chain is why you can't simply throw more people at a bathroom to finish it faster — and why labour, not materials, sets the floor on the price.

Where fixtures can swing the number

Fixtures are the most elastic part of the budget. A vanity can be $400 or $4,000; a toilet suite $300 or $1,500; tapware $150 or $1,200 a set. This is where two quotes for the "same" bathroom diverge most, and where you have the most control — hold the labour and waterproofing steady and dial the fixtures up or down to hit your number.

Itemised example — Northcote main bathroom, 7 m²

Frequently asked questions

Why is labour such a big part of a bathroom renovation?

Because a bathroom needs four or five trades — plumber, tiler, electrician, waterproofer and often a builder to coordinate them — cycling through over 3–4 weeks, each on a Melbourne day rate. The work is also sequential, so you can't speed it up by adding people. Labour, not materials, sets the floor on the price.

What's the most expensive single part of a bathroom?

Labour overall, but among materials it's usually tiling (supply plus the slow, skilled work of laying it) and fixtures. Tiling and fixtures together are commonly close to half the visible spend.

Where can I save without cutting corners?

Fixtures and tiles are the elastic parts — choosing a $1,200 vanity over a $3,000 one, or a quality mid-range tile over a designer one, can trim thousands without touching the quality of the build behind the walls.

Where should I never cut costs?

Waterproofing and plumbing. A failed membrane is the most expensive bathroom mistake there is, and water damage to the room below can dwarf the whole renovation. It's only about 6% of the budget — never the place to save.

Does the suburb change the breakdown?

The proportions stay similar across Melbourne, but the absolute numbers move with trade availability and the spec buyers expect in the area. The same scope costs more in Brighton or Toorak than in the outer suburbs, mostly through fixtures and finish rather than the structure.