Bathroom Renovation Cost in Australia
Real numbers. No lowball estimates. No surprises halfway through.
Most cost guides online are built to get you clicking, not to prepare you for what’s actually coming. The truth is, a bathroom renovation in Australia costs anywhere from $8,000 for a basic cosmetic tidy-up to $35,000 or more for a full gut-and-rebuild — and that gap is exactly where most homeowners get caught out. Size, materials, labour, and what’s hiding behind your existing tiles all affect the final number. This guide breaks down what you’ll actually pay, what drives costs up or down, and how to tell a solid quote from one that’ll cost you twice as much to fix later.
What Does a Bathroom Renovation Actually Cost in Australia?
The honest answer is: it depends. But here’s what jobs are actually coming in at across the Australian market right now — not the wishful minimums you’ll see on comparison sites. Costs vary by state; labour rates in Sydney and Melbourne run higher than regional areas. These figures reflect a mid-market average for 2025.
| Tier | Small Bathroom | Standard Bathroom | What’s Realistic at This Range |
|---|---|---|---|
| Budget | $8,000 – $12,000 | $12,000 – $18,000 | Basic fixtures, standard tiling, existing layout kept. No structural changes. |
| Mid-Range | $14,000 – $22,000 | $18,000 – $28,000 | Quality fixtures and tapware, upgraded tiling, full waterproofing. Most homeowner renovations sit here. |
| Premium | $24,000 – $35,000+ | $30,000 – $45,000+ | Designer tapware, custom joinery, heated flooring, full gut-and-rebuild. Layout changes possible. |
Indicative 2025 figures. Your quote will depend on location, existing bathroom condition, fixture selection, and scope.
What You Actually Get at Each Budget
The price ranges above are one thing. What they look like on-site is another. Here’s what’s realistic at each tier — and just as importantly, what’s not.
The Biggest Cost Drivers
There’s no single thing that determines your final price. It’s a combination of factors — some obvious, some that don’t come up until the renovator is actually on-site. Knowing what they are upfront means you’re not caught off guard when a quote comes in higher than expected.
Bathroom size is the starting point. A 3m² ensuite and a 7m² main bathroom are fundamentally different jobs. More floor area means more tiles, more waterproofing membrane, more time. Labour doesn’t scale down proportionally with a smaller space — there’s a minimum cost just to mobilise a tradesperson.
Fixture and tapware selection moves the needle significantly. The difference between a $400 vanity and a $2,000 one isn’t just aesthetics — it’s also the installation time, quality of fittings, and how it interacts with your plumbing configuration. A budget mixer and a premium wall-mounted set from an imported brand can sit $600–$1,500 apart per fitting. Add up a shower, bath, and basin and you’re talking real money.
Tiling scope is consistently underestimated. Floor-only tiling is one number. Floor plus full-height walls is another entirely. Large-format tiles cost more to purchase and take longer to lay — cutting angles, managing grout lines, waste from cuts. The tile itself might be 15% more expensive than a standard option. The labour to lay it properly can be 30–40% more.
Waterproofing compliance is non-negotiable. Every bathroom in Australia must be waterproofed to AS3740 standards. A renovator who shortcuts this isn’t saving you money — they’re handing you a liability. See our full breakdown at AS3740 Waterproofing Standards.
Layout changes are the wildcard. Moving a shower, shifting the toilet, or relocating the vanity requires re-routing plumbing — and sometimes breaking up concrete floors. In older homes this can open significant cost exposure once the floor is up. Keeping the existing layout almost always keeps costs lower.
Age and condition of the existing bathroom matters more than people think. A bathroom renovated in the last ten years is a different starting point to a 1970s tiled-to-the-ceiling bathroom with old plumbing fittings. The older the bathroom, the higher the chance of discovering problems once demolition starts.
Cost by Renovation Type
Not every bathroom needs a full rebuild. The scope you choose determines the price — and the right scope depends on why you’re renovating, not just what you want it to look like.
Paint, reseal, swap the tapware, replace the vanity top, update the mirror and accessories. No tiles ripped up, no plumbing touched beyond fixture swaps.
New fixtures, new tiling, proper waterproofing, layout stays where it is. Everything gets renewed. The most common scope for owner-occupiers who want a proper result without a full gut job.
Everything out. Floor, walls, plumbing, electrical. Starting from a bare shell. Layout changes on the table. Full AS3740 waterproofing from scratch.
How to Get an Accurate Quote — and Spot a Dodgy One
Getting three quotes is good advice that everyone gives and almost no one explains properly. Here’s what to actually look for.
A legitimate bathroom renovation quote is itemised. You should see a breakdown of labour — tiler, plumber, waterproofer — separately from materials and fixtures. A quote that says “Bathroom renovation: $18,500 — all inclusive” tells you almost nothing. If there’s a problem on-site, there’s no baseline to work from. Disputes about what was and wasn’t included become very difficult to resolve.
Fixed-price quotes are preferable to estimates. A fixed price means the renovator has scoped the job properly and is prepared to commit to a number. An estimate means they’re guessing, and the final bill may be higher. There are legitimate situations where an estimate is unavoidable — if your floor is tiled over and no one can inspect the substrate without pulling something up — but those scenarios should be flagged explicitly, not buried in fine print.
Ask specifically about waterproofing. Which membrane system are they using? How many coats? What’s the curing time before tiling proceeds? A renovator who can’t answer these questions clearly either doesn’t do it properly or doesn’t understand why it matters. Both are problems.
- Verbal quote only — nothing in writing
- Price 20–30% below other quotes with no explanation
- No contractor licence number provided
- Large deposit demanded upfront (more than 10% before work starts)
- No mention of waterproofing method or compliance standard
- Pressure to sign the same day
- No breakdown of labour vs materials
Any one of these warrants walking away. See our full guide at Renovator Red Flags.
- Contractor’s full name, business name, ABN, and licence number
- Itemised labour costs per trade (tiler, plumber, waterproofer)
- Materials and fixtures listed by product or specification
- Waterproofing method and compliance standard (AS3740)
- Payment schedule tied to completion milestones
- Exclusions clearly stated
- Estimated timeline with start and completion dates
Use our checklist before you sign anything: The LB Checklist.
What Lifestyle Bathrooms Does Differently
What we do is make the process of finding a decent renovator significantly less of a gamble. Anyone can have a website. The specialists in our network have been assessed against a defined set of criteria before we connect them with homeowners.
Every specialist holds the applicable contractor licence for their state. Plumbing, waterproofing, and building licences are verified — not self-declared. For NSW homeowners, see HBC Insurance NSW for what’s required on jobs over $20,000.
Waterproofing to AS3740, correct drainage falls, NCC compliance — these aren’t boxes specialists tick themselves. Our vetting includes an assessment of working standards. See Our Standards for the full criteria.
Submit your enquiry and we’ll match you with a relevant specialist for your location and scope. You’re under no obligation to proceed — and we don’t pass your details to five different people hoping one sticks.
Our network covers specialists across NSW, ACT, and broader Australia. Tell us your suburb and we’ll confirm coverage before anything else. See Contractor Licensing for state-by-state requirements.
Bathroom Renovation Cost FAQs
Most bathroom renovations in Australia land somewhere between $12,000 and $28,000 for a standard-sized bathroom. Budget jobs start around $8,000–$12,000 for a small space with basic fixtures and no layout changes. Full gut-and-rebuilds with premium finishes can reach $40,000–$50,000. The national average you’ll see cited in articles tends to cluster around $17,000–$22,000 — but averages are slippery. What actually determines your cost is scope, materials, labour rates in your area, and the condition of your existing bathroom. A quote is the only way to get a real number.
Small bathroom renovations — an ensuite or second bathroom under about 4m² — typically run $8,000 to $16,000 depending on scope. There’s a floor cost to any bathroom job: trades still have to mobilise, waterproofing still has to be done properly, and fixtures still need to be installed. Saving on size doesn’t always scale the way people expect. That said, a tight ensuite with a sensible fixture selection and no layout changes is absolutely achievable in the lower end of that range with the right renovator.
Three things cause most blowouts: hidden water damage, scope creep, and inadequate quotes. The first is genuinely unpredictable — you don’t know what’s behind the tiles until they come off. The second is more controllable: decide what you want before the job starts, not during. The third is avoidable — a quote that’s suspiciously cheap is usually missing something, and that something shows up on the final invoice. A fixed-price, itemised quote from a licenced renovator is the best protection against all three.
Sometimes — but not always by as much as people expect. Renovators typically mark up fixtures at trade discount rates, so supplying your own removes that margin. The catch: if you source the wrong spec, the wrong rough-in depth, or a product that arrives damaged, the delay and potential re-ordering costs usually wipe out any savings. If you want to supply fixtures, discuss it with your renovator before the quote. Some are fine with it; others factor in a risk allowance for owner-supplied products.
You can pay in cash. What you shouldn’t do is agree to a lower price in exchange for not having a written contract or proper invoicing — that arrangement benefits the renovator, not you. A contractor who suggests keeping things informal to avoid paperwork is signalling they’re not operating above board. You lose all the consumer protections that come with a proper agreement: no written scope, no recourse if something goes wrong, and potentially voided home insurance if unlicensed work causes damage.
A standard partial renovation — new fixtures, new tiling, proper waterproofing — usually takes two to three weeks on-site once the job starts. Waterproofing alone requires 24–48 hours curing time before tiling can proceed, which is a fixed constraint regardless of how eager the renovator is to push ahead. Full gut-and-rebuilds with structural changes typically run three to five weeks. Custom joinery or imported fixtures can add lead time before work even begins. Get a clear programme from your renovator before signing — week-by-week milestones, not just a finish date.
Tiling scope, more often than not. People focus on fixtures — the vanity, the tapware — but floor-to-ceiling large-format tiling in a standard bathroom can add $3,000–$6,000 to a job compared to a standard mid-height tile job. It’s also the most visible element once complete. After that, layout changes. The moment plumbing moves, the cost profile changes significantly.
Depends what you mean by cheap. A modest budget with a licenced renovator, sensible fixture selections, and a clear scope — yes, that can be excellent value. A low-price quote from an unlicensed operator who skips waterproofing and uses inferior materials? That’s not a cheap renovation; it’s an expensive one that hasn’t shown you the full bill yet. Water damage from failed waterproofing costs more to fix than the renovation itself would have cost to do properly. It happens — a lot more often than it should.