Sydney bathroom renovation cost breakdown

Quick answer: how a Sydney bathroom renovation cost breaks down

A full bathroom renovation in Sydney costs $23,000–$40,250 at the mid-range in 2026 ($31,050 typical), $11,500–$23,000 with budget fittings and $40,250–$63,250 for premium finishes. Tiling, plumbing and waterproofing are the big trade lines: tiling costs $3,225–$8,600, plumbing rough-in $2,300–$5,750 and waterproofing $805–$4,025. Per-square-metre rates are a poor guide, because the fixed costs do not shrink with the room.

Below are the scope bands, the line-by-line costs, the labour-versus-materials split, and how to estimate your own bathroom.

Bathroom renovation cost per square metre in Sydney

Per-square-metre rates move with size - small rooms cost more per m2 because the fixed costs do not scale down - so the Sydney price table prices a bathroom by scope instead:

If you're pricing a compact room specifically, see the small bathroom renovation cost guide; for an ensuite, the ensuite cost guide.

The full breakdown, line by line

What each part of a Sydney bathroom renovation costs on its own, from the rows in the main Sydney price table (electrical and project management are quoted separately):

Tiling is almost always the single biggest line item, followed by labour and fittings - and all three are where your choices move the number most.

Labour vs materials: the rough split

On a typical Sydney bathroom, labour is roughly 45-55% of the total and materials and fittings the other 45-55%. Labour-heavy steps - tiling, waterproofing, plumbing - are also ones you can't skimp on: wet-area waterproofing must meet the National Construction Code and plumbing must be done by a licensed plumber, which is why the labour share holds even on budget jobs. The materials side is where you have the most control: tile choice, tapware brand and whether you use stone all swing the number by thousands.

What pushes the number up

• Moving fixtures. Relocating the toilet, shower or vanity means new plumbing runs and re-waterproofing - plumbing rough-in alone costs $2,300-$5,750 and waterproofing $805-$4,025 in Sydney.
• Tile selection. Imported stone, large-format or mosaic feature walls cost several times more to supply and lay than standard porcelain.
• Structural surprises. Rotten subfloors, hidden leaks or old asbestos sheeting found at demolition can add cost mid-job - the most common reason a quote jumps after strip-out.
• Premium fittings. Freestanding baths, frameless screens, heated floors and designer tapware lift the fittings line quickly.

How to estimate your bathroom renovation cost

For a quick estimate: start from the scope band above that fits your job, then add the line items that apply - moving fixtures, a freestanding bath or a frameless screen. For a more tailored number, use the interactive calculator on the main Sydney bathroom renovation cost guide, which factors in size, scope and finish. A per-m2 figure is a guide, not a quote - scope and the condition of what's behind the walls always shift the final price.

Worked example: standard Sydney bathroom, 7 m2

A 2026 full renovation of a 7 m2 main bathroom in Sydney - full strip-out, same layout, mid-range fittings, bath and separate shower, porcelain tiles:

• Demolition and disposal: $2,075
• Plumbing rough-in: $3,450
• Waterproofing: $2,075
• Tiling (floor and walls): $4,025
• Vanity: $1,725
• Toilet: $805
• Frameless shower screen: $1,725
• Bath: $3,225

Total: $19,105 for the priced parts, before electrical and project management - which is why a full mid-range renovation lands at $23,000-$40,250. Premium finishes (stone, designer tapware, a bath at the top of its row) move a job into the $40,250-$63,250 premium band.

Frequently asked questions

How is a bathroom renovation cost broken down?

In Sydney the priced parts are tiling ($3,225-$8,600), plumbing rough-in ($2,300-$5,750), waterproofing ($805-$4,025), demolition ($1,150-$3,450) and the fittings - vanity, toilet, shower screen and bath - with electrical and project management on top. Tiling is usually the single biggest line item.

What does a bathroom renovation cost per square metre in Sydney?

The Sydney price table does not price bathrooms per square metre, because small rooms cost more per m2 than large ones - the fixed costs do not shrink with the floor. By scope, a full renovation costs $11,500-$23,000 with budget fittings, $23,000-$40,250 at the mid-range and $40,250-$63,250 for premium finishes.

What is the biggest cost in a bathroom renovation?

Tiling - supply and lay - is almost always the largest single line item, typically 25-30% of the total. Labour and fixtures/fittings are the next two biggest, and all three are where your choices move the price most.

What is the labour vs materials split on a bathroom renovation?

Roughly half and half - labour is about 45-55% and materials and fittings the rest. Labour-heavy steps like tiling, waterproofing and plumbing cannot be skipped, so the labour share stays high even on budget jobs.

Is there a bathroom renovation cost calculator or estimator?

Yes - the main Sydney bathroom renovation cost guide has an interactive calculator that factors in size, scope and finish. For a rough estimate yourself, start from the scope band that fits your job, then add moving fixtures or premium finishes.

What is included in a bathroom renovation quote?

A complete quote should cover strip-out and disposal, plumbing rough-in and fit-off, certified waterproofing, tiling supply and lay, electrical, fixtures and fittings, and labour with project management. Always check whether fittings (vanity, tapware, toilet) are supplied or a PC allowance.

Why did my bathroom renovation quote jump after demolition?

Strip-out often reveals problems hidden behind walls and floors - rotten subfloors, old leaks, or asbestos sheeting in pre-1990 homes. Fixing these is unavoidable and is the most common reason a price rises mid-job. A good builder will flag the risk and allow a contingency upfront.

How accurate is a per-square-metre estimate?

It is a useful starting point but only a guide. Two bathrooms of the same size can differ by thousands depending on whether fixtures are moved, the finish level, and the condition of the plumbing and subfloor. Use per-m2 to ballpark, then get three quotes for a real number.