Bathroom Renovation Cost in Australia: A Complete Budget Guide

What Drives Bathroom Renovation Costs in Australia

Having spent years in the renovation and plumbing industry, one thing I have found is that the bathroom renovation cost takes most people by surprise more so than anything else in a home project. How much a bathroom renovation costs will depend on many factors: the scope of work, your location, the quality of materials and fittings you choose and if there are any structural changes involved.
How much does a bathroom renovation cost? It depends, on everything. A basic bathroom renovation in a regional town will not cost the same as a full remodel in the inner suburbs of Sydney. Labour costs differ between cities just as much as material prices have shifted in recent years. A small ensuite is obviously cheaper than a larger family bathroom, but the cost per square metre can work out higher because the cost of waterproofing, plumbing and electrical work stays the same regardless of the size of the space.
One tip I like to pass on is to include compliance costs when budgeting. Waterproofing, plumbing compliance certificates and electrical testing for safety are mandatory in all Australian states and territories, and you do not want to cut corners there to save a few hundred dollars.

Cost Breakdown by Category: Labour, Materials, Fixtures

Labour usually makes up 40 to 60 per cent of the bathroom renovation cost, which includes your plumber, tiler, electrician, waterproofer and—if any walls need moving—a builder or carpenter as well. Plumbers generally charge $80 to $120 per hour, tilers $50 to $70 per square metre for laying, while electricians charge $80 to $130 per hour.
Next comes materials. The cost for tiles ranges from $35 to $120 per square metre depending on the type and finish. Waterproofing membrane and adhesives can add $50 to $80 per square metre. Then there is skip bin hire, demolition disposal, and all the consumables like silicone, grout and cement board that add up fast.
Fixtures are where you have the most control. A back-to-wall toilet suite costs from around $185 up to $1,199 for a premium option. Wall hung vanities range from $250 for a basic PVC cabinet to over $2,828 for a top-end unit. Basins start from around $93 to $1,781 depending on material and style.

Small vs Standard vs Full Renovation: Price Ranges

The Housing Industry Association suggests that bathroom renovation cost Australia starts from around $10,000 for a basic ensuite refresh and can reach $25,000 or more depending on the scope (HIA Bathroom Renovation Cost Guide 2025). Sydney and Melbourne sit at the higher end, while regional areas typically come in 15 to 20 per cent lower.
A small bathroom renovation cost for a basic refresh—keeping the existing layout and plumbing positions—runs between $10,000 and $15,000. A standard renovation where you strip everything back, waterproof, retile and replace all fittings typically falls between $15,000 and $25,000. A full renovation with layout changes, relocated plumbing and high-end fixtures pushes past $25,000 and can reach $50,000 or more.
The price per square metre for a bathroom renovation in Australia ranges from $2,300 to $4,600, which gives you a quick sanity check against quotes.

Where You Can Save Without Sacrificing Quality

For me, the smartest savings come from keeping the existing layout. Moving plumbing is expensive—every relocated pipe means cutting into the floor, adjusting falls, and possibly re-waterproofing the entire area.
You can also save by being strategic with fixtures. A mid-range back-to-wall toilet suite around $400 to $600 will perform just as well as the premium options for most households. When shopping for vanities, PVC cabinet construction is the waterproof budget option while plywood is the higher-end choice. All plumbing fixtures must carry WaterMark certification (WaterMark Certification Scheme) to be legally installed in Australia—so quality is built into the minimum standard.
Choose your bathroom vanity based on the space you have and how much storage you need. A common size for a wall hung vanity is 900 mm. Consider doing the demolition yourself if you are able—it can save $1,000 to $2,000 in labour costs. If your home was built before the 1990s, have the wall linings and flooring tested for asbestos first—handling asbestos-containing materials without a licensed removalist is illegal under WHS regulations in every Australian state. Painting is another easy DIY task that saves money without compromising the professional finish.

Getting Accurate Quotes and Managing Your Budget

Make sure you get at least three quotes from different tradespersons before committing. A good quote should itemise labour, materials and fixtures separately. If a tradesperson gives you a single lump sum with no breakdown, that is a red flag.
Set aside 10 to 15 per cent of your total budget as a contingency. Hidden issues like rotted framing, outdated plumbing, or asbestos-containing materials in pre-1990 homes can blow a tight budget quickly. I have seen it happen too many times.
If the bathroom renovation cost is stretching your budget, focus on cosmetic updates instead—painting, replacing tapware, or refreshing mirrors and accessories. A new vanity or toilet suite must be installed after tiling and waterproofing are complete, not before—the fixtures sit on the finished tile surface, and the AS 3740 waterproofing membrane must be laid as a single continuous layer across the wet area. Splitting tiling and waterproofing into a later phase is not practical; if funds are tight, reduce the scope rather than the sequence.

References

HIA (Housing Industry Association) — Bathroom Renovation Cost Guide 2025
WaterMark Certification Scheme, Australian Building Codes Board