When your bath is chipped, stained, too small or simply past its best, the first question is a practical one: what will a bathtub renovation cost in Australia, and is it worth fixing the tub you have or replacing it altogether? The honest answer is that most Australian households spend between $400 and $900 to resurface a standard tub, between $1,500 and $4,500 for a straightforward like-for-like replacement, and between $4,000 and $12,000 or more once you add a freestanding tub, new tiling, waterproofing and moved plumbing. The tub itself is only part of the bill.
This guide stays focused on the tub, not a whole bathroom rebuild. It explains resurfacing versus replacement, compares freestanding, built-in, drop-in, corner, walk-in and spa tubs in Australian dollars, and shows where plumbing, tiling and waterproofing quietly add thousands. Prices are planning ranges for 2026, based on Australian supplier and trades guides, not fixed quotes. Your city, your floor type, the age of your plumbing and whether the waste pipe has to move will all shift the final figure, so always get at least three itemised quotes from licensed trades before you commit.
Table of Contents
- 1. Resurface Instead of Replacing: $400 to $2,500
- 2. Like-for-Like Built-In Replacement: $1,500 to $4,500
- 3. Freestanding Bath: $2,500 to $12,000 Installed
- 4. Drop-In and Back-to-Wall Baths: $2,000 to $7,000 Installed
- 5. Shower Over the Bath: $2,500 to $8,000 Installed
- 6. Walk-In Bath for Easier Access: $5,000 to $15,000 Installed
- 7. Heritage Cast-Iron Clawfoot Bath: $4,000 to $12,000 Installed
- 8. Corner Bath for a Small Room: $2,000 to $7,500 Installed
- 9. Spa and Jetted Bath: $3,500 to $12,000 Installed
- 10. Tiling, Waterproofing and Plumbing Around the Tub
- FAQs
- Final Thoughts
- Sources
1. Resurface Instead of Replacing: $400 to $2,500
Resurfacing, also called reglazing or refinishing, is the cheapest way to make a tired tub look new again. A professional cleans and repairs chips, then sprays a new coating over the existing bath. In Australia, a standard acrylic or fibreglass tub usually costs $400 to $900 to resurface, while a cast-iron or antique tub can cost $1,200 to $2,500 because the preparation is heavier and the coating must cope with a much harder, older surface. Most jobs take one to two days, plus 24 to 48 hours of drying time before you can use the bath again, and a good finish should last 7 to 15 years with gentle, non-abrasive cleaning.
Resurfacing only makes sense when the tub itself is sound. It is a smart choice for a rental, a quick sale preparation, or a bathroom where the layout, tiles and plumbing are all fine and only the bath surface looks worn. It is not a fix for a cracked shell, a leaking waste, a soft floor, failed waterproofing or a tub that is simply the wrong size for your family. If you resurface over a hidden leak, you will pay twice: once for the coating and again for the repair underneath it. Ask the resurfacer what preparation, coating type and warranty are included, and avoid harsh bleach cleaners afterwards, because they shorten the life of the new finish.
2. Like-for-Like Built-In Replacement: $1,500 to $4,500
A like-for-like swap is the most common Australian tub job, and the most predictable on price. The old built-in bath comes out, a new bath of the same size goes into the same spot, and the waste and taps stay where they are. A standard acrylic bath costs roughly $400 to $1,800 to buy, steel enamel baths sit around $800 to $2,500, and a plumber typically charges from about $350 for a simple fit, with removal, disposal, new waste, sealing and patch-up work taking the all-in total to about $1,500 to $4,500 for a straightforward job. Most Australian family baths are 1500 mm or 1700 mm long, so matching the old size avoids cutting into walls or floors.
The bill climbs when the job stops being simple. Removing an old cast-iron bath can need two people and careful handling, disposal fees apply, and once the old tub is out, trades often find damaged waterproofing, rotten timber or old galvanised pipes that must be fixed before the new tub goes in. Keeping the same footprint is the single best way to control the price, because it avoids re-tiling a whole wall and re-waterproofing a whole wet area. If your tiles are in good shape, ask your plumber and tiler whether the new bath can be fitted with only a small tile repair around the rim, rather than a full re-tile, and confirm in writing what is included for disposal, waste replacement and silicone sealing.
3. Freestanding Bath: $2,500 to $12,000 Installed
A freestanding bath is the statement choice, and it is also the choice with the most hidden extras. The tub alone ranges from about $800 to $2,500 for a good acrylic model, $1,800 to $5,500 for stone resin or solid surface, and $2,500 to $6,000 or more for cast iron, with premium and designer models going higher again. Add floor-standing or wall-mounted tapware, a new floor waste in the middle of the room, extra floor tiling under and around the tub, and sometimes floor strengthening for a heavy tub, and a realistic installed total is $2,500 to $12,000, depending on material and how far the plumbing has to move.
Before you fall in love with the look, measure honestly. A freestanding tub needs breathing room for cleaning, usually at least 100 mm from the wall, plus space to walk around it, so it suits larger main bathrooms and ensuites far better than a small family bathroom. Check your floor structure for a heavy cast-iron or stone tub, especially in an older home with a timber floor, and check your hot water system too, because a deep soaker can hold 250 litres or more and a small system may not fill it comfortably. For styling ideas, our guide to 30 modern luxury bathroom ideas shows how light, stone and simple finishes let a freestanding tub be the hero without crowding the room.
4. Drop-In and Back-to-Wall Baths: $2,000 to $7,000 Installed
A drop-in bath sits into a tiled hob or platform, while a back-to-wall bath gives you the freestanding look with its flat back pushed against the wall, so there is no awkward gap to clean behind it. Both are popular middle-ground choices in Australia. The tub itself usually costs $500 to $3,000, the hob, tiling and waterproofing add labour and materials, and the installed total commonly lands between $2,000 and $7,000 when the plumbing stays in place. Back-to-wall models are often the easier retrofit, because they use standard wall plumbing and do not need a floor waste in the middle of the room.
The hob is where the budget needs care. A wide tiled ledge looks generous and gives you somewhere to put soap and a candle, but every extra square metre of tiling, every mitred edge and every custom-sized hob adds labour time. Keep the hob simple, choose a large-format tile that is easy to clean, and make sure the tiler falls the top of the hob very slightly away from the wall so water does not sit against the grout. Also think about getting in and out: a high hob can be hard for small children and older adults, so a lower hob height, a secure grab rail and a non-slip step are worth discussing before the tiling starts, not after it is finished.
5. Shower Over the Bath: $2,500 to $8,000 Installed
In many Australian homes, especially units and smaller family bathrooms, one room must do two jobs: a bath for children and a shower for busy mornings. A shower over the bath keeps both, and it is usually cheaper than building a separate shower. The bath itself costs the same as a standard built-in model, then you add a shower mixer and rail, a bath screen or curtain, waterproofing up the shower wall, and tiling to a proper shower height. A realistic installed range is $2,500 to $8,000 when the bath position and waste stay put, with a fixed glass screen costing more than a shower curtain and a frameless screen costing more again.
The details decide whether this setup feels good or feels like a compromise. The shower head should sit high enough for the tallest person in the home, the screen should be long enough to keep water off the floor, and the bath base should not be too slippery when you stand in it. A handheld shower on a rail is a practical extra for washing children, pets and the bath itself, and it costs far less to add during the renovation than afterwards. If your household rarely uses a bath at all, ask your builder to price removing the tub and fitting a walk-in shower as an alternative, because keeping a tub you never use can waste the most valuable thing in a small bathroom: floor space.
6. Walk-In Bath for Easier Access: $5,000 to $15,000 Installed
A walk-in bath has a watertight door in the side, a built-in seat, grab rails and a low step, so a person with limited mobility can sit down safely instead of climbing over a high bath rim. That safety comes at a price. The tub itself usually costs $2,000 to $8,000, and once you add installation, possible floor strengthening, a dedicated electrical circuit for heated or jetted models, and any plumbing or tiling changes, most Australian installations land between $5,000 and $15,000, with premium hydrotherapy models going higher. The door seal is the critical part: it must be checked and maintained, because a worn seal can leak.
Walk-in baths also need a different daily routine, and buyers should understand it before ordering. You sit in the tub, close the door, wait for it to fill, then wait again for it to drain before you can open the door and get out, so a bath takes longer and you can feel cold while waiting. Fast-fill taps, a heated seat or backrest, and good bathroom heating make a real difference. Measure the door swing, the seat height and the step height against the person who will use it most, and get a quote that separates the tub, the plumbing, the electrical work and the tiling, so you can see exactly what the accessibility features cost and what is simply a luxury extra.
7. Heritage Cast-Iron Clawfoot Bath: $4,000 to $12,000 Installed
A cast-iron clawfoot bath is the classic heritage choice, and it is loved for a good reason: it holds heat for a long soak, it feels solid underfoot, and it can last for decades. The tub alone usually costs $2,500 to $6,000 or more in Australia, and a restored antique can cost more again once you allow for re-enamelling, new feet, new waste and tapware. With floor checks, possible strengthening, plumbing and delivery of a very heavy item, a realistic installed total is $4,000 to $12,000. Modern acrylic clawfoot-look replicas are lighter and cheaper, but they do not hold heat the same way and can flex slightly under a heavier bather.
Weight is the question to ask first, not last. A filled cast-iron bath can weigh 300 kilograms or more, and an older timber floor or a first-floor bathroom may need an engineer or builder to confirm it can carry that load safely. Enamel also chips if something heavy is dropped in it, and a chip repair on cast iron is visible and costly, so treat the surface gently. If you love the heritage look but your floor or budget cannot carry a true cast-iron tub, a high-quality acrylic replica with metal feet gives you most of the style at a much lower installed price, and it is far easier to deliver through a narrow hallway or doorway.
8. Corner Bath for a Small Room: $2,000 to $7,500 Installed
A corner bath tucks into a corner that might otherwise be wasted, and it can give you a generous soaking area in a room where a standard rectangular tub would block the door or crowd the vanity. The tub itself usually costs $800 to $3,000, and the installed total commonly lands between $2,000 and $7,500 when the waste can stay near its current position. Corner baths work best in square rooms, under a sloped ceiling, or in a main bedroom ensuite where the corner is the only place a tub will fit without shrinking the shower or the wardrobe.
The trade-off is the dead space around the tub and the tiling. A corner bath has more surround to tile and waterproof than a standard alcove bath, and the triangular ledge can collect water and dust if it is not detailed well. Check the internal length carefully, because some corner models look large from the outside but have a short, cramped soaking area inside. Sit in the display model if you can, check where your back and knees will sit, and confirm the waste position with your plumber before you order, because moving a corner waste across a concrete slab is one of the fastest ways to turn a modest job into an expensive one.
9. Spa and Jetted Bath: $3,500 to $12,000 Installed
A spa bath adds jets, air bubbles or both, plus a pump, an air blower and an electrical supply, so it is a small machine as well as a tub. The bath itself usually costs $1,500 to $5,000, and once you add the pump installation, a dedicated electrical circuit with safety switching, access panels for servicing, and any plumbing or tiling changes, most installed totals land between $3,500 and $12,000. Air-jet systems, which blow warm air through small holes, are gentler and easier to keep clean than older water-jet systems, which push bath water through pipes that need regular flushing.
Before you pay for jets, be honest about how often you will use them. Many households love a spa bath for the first few months and then use it as an ordinary tub, while still paying for the pump service, the cleaning cycle and the electricity. If you do choose one, insist on a proper access panel so a plumber or electrician can reach the pump without cutting tiles, ask how the system is cleaned and how often, and check the noise level, because a loud pump in a small unit can be heard in the next room. A deep, well-insulated soaker without jets is often the better long-term buy for a household that simply wants a long, quiet bath.
10. Tiling, Waterproofing and Plumbing Around the Tub
This is the section that catches most budgets by surprise, because none of this work is the tub itself. Tiling supply and labour in Australia commonly runs $70 to $150 per square metre for standard work, and $160 to $300 per square metre for large-format porcelain, stone or mosaic, so re-tiling the wall and floor around a tub can easily add $2,000 to $6,000. Waterproofing to Australian Standard AS 3740, with a certificate, usually costs $800 to $2,200 for a standard wet area, and it is the one cost you should never cut, because a failed membrane means leaks, mould and a second renovation. Plumbing is the other big variable: keeping the waste and taps in place is modest, while moving a waste across a concrete slab can add $2,000 to $5,000 or more.
The cheapest way to control all three is to make one decision early and stick to it: keep the tub where it is. Every move ripples into demolition, pipework, waterproofing, tiling and patching, and each trade charges for its own part of that ripple. Choose your tiles and tapware before demolition starts, confirm the waterproofing certificate and the plumbing compliance certificate in writing, and keep a contingency of 10 to 20 per cent for what the trades find once the old tub is out, such as rotten timber, rusted pipes or asbestos in a pre-1990 home. If a dark, dramatic tiled wall appeals to you, our guide to 25 black bathroom ideas shows how dark tiles and a freestanding tub can work together without making a small room feel closed in.
FAQs
Is it cheaper to resurface a bath or replace it in Australia?
Resurfacing is almost always cheaper upfront, at roughly $400 to $900 for a standard tub versus $1,500 to $4,500 for a straightforward replacement. Replacement wins when the tub is cracked, the wrong size, leaking at the waste, or sitting over damaged waterproofing, because a new coating cannot fix any of those problems.
How much does a freestanding bath cost installed in Australia?
Allow $2,500 to $12,000 installed. The tub itself ranges from about $800 for acrylic to $6,000 or more for cast iron or stone, and the rest is tapware, floor waste, tiling, possible floor strengthening and any plumbing move. Keeping the waste near its current position keeps you at the lower end.
Do I need a licensed plumber to replace a bathtub?
Yes, for the plumbing work. In Australia, plumbing, drainage and waterproofing in wet areas must be done by licensed trades, with compliance and waterproofing certificates on completion. You can do your own painting or cosmetic finishing, but unlicensed plumbing and waterproofing can void insurance and cause problems when you sell.
Can I keep my existing tiles when I replace the bath?
Sometimes, if the new bath is exactly the same size and shape and the tiles around the rim are sound. Often at least a small repair is needed where the old bath met the wall, because removing the tub disturbs the seal and the bottom row of tiles. Ask your tiler to price a small repair and a full re-tile separately so you can compare.
How long does a bathtub replacement take?
A simple like-for-like swap can take two to five days on site, including removal, plumbing, sealing and clean-up. A freestanding tub with moved plumbing, new tiling and waterproofing usually takes one to three weeks, plus ordering time beforehand, because the waterproofing must cure before tiling can start.
Final Thoughts
The smartest tub budget starts with a simple question: is the problem the surface, the size, or the room around it? If only the surface is worn, resurfacing saves thousands. If the size or the plumbing is wrong, a replacement is the honest fix, and keeping the new tub in the same spot is the best way to keep that fix affordable. Freestanding, walk-in and spa tubs are wonderful when they match the household that will use them every day, and wasteful when they are bought for looks alone.
Get three itemised quotes, check licences and certificates, choose your tub and tiles before demolition, and keep a contingency aside for hidden damage. Spend first on waterproofing, drainage and licensed plumbing, because those are the parts you cannot see and cannot easily fix later. Do that, and your new bath will not just look good on the day the trades leave, it will still feel good years later, every time you run a bath.
Sources
- Airtasker: How Much Does Bathroom Resurfacing Cost in Australia? [2026]
- hipages: How Much Does Bathroom Resurfacing Cost? [2026]
- WhatsTheDamage: Bathroom Renovation Cost Melbourne 2026
- Joyce Kitchens: New Bathtub Ideas in Australia
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