How Much Does a Bathroom Renovation Really Cost in Sydney in 2026?

If you've started pricing up a bathroom renovation in Sydney, you've probably already noticed the numbers swing wildly depending on who you ask. One quote comes in at $14,000, the next at $45,000, and you're left wondering whether someone's trying to rip you off or whether you're missing something. Usually it's neither. It just means the two quotes aren't actually pricing the same job.

Here's what a bathroom renovation genuinely costs in Sydney right now, and why the number on your quote might be higher, or lower, than you expected.

The real price brackets

Most Sydney bathroom renovations fall into one of four bands:

Basic renovation: $10,000 to $20,000. This covers a like-for-like layout with new tiles, a new vanity, toilet and shower fittings, and standard fixtures. No moving plumbing, no structural changes.

Mid-range renovation: $20,000 to $35,000. The average job we see lands around $26,000. This is where most homeowners end up once you add a freestanding bath, better tiles, a frameless shower screen and some layout tweaks.

Premium renovation: $35,000 to $55,000. Think higher-end tiling, custom joinery, feature lighting and a full plumbing rework if the layout's changing.

Luxury renovation: $55,000 to $80,000+. Full structural changes, imported fittings, underfloor heating, the works.

If you've got an ensuite rather than a main bathroom, knock 20 to 30 percent off those numbers. Most standard ensuite renovations in Sydney land somewhere between $14,000 and $24,000, simply because there's less floor space to tile and fewer fixtures to install.

What actually drives the price up

This is the part most online calculators skip over, and it's the part that matters most if you're trying to work out why your quote looks different to your neighbour's.

Waterproofing alone typically runs $1,000 to $3,500, and it's not optional; it's a compliance requirement, not a line item you can trim. Tiling is the next big swing factor. Budget tiles and a straightforward layout might cost $2,000 for floor and walls, but step up to large format porcelain or an intricate pattern and you're looking at $6,000 or more, sometimes before labour is even added.

Plumbing rough-in costs $2,000 to $5,000, but only if you're moving anything. Keep the toilet, shower and vanity in their existing spots and you'll pay toward the bottom of that range, or skip it altogether. Move the shower to the other wall because that's where the light is better, and you're paying for new pipework, new drainage falls, and probably a bit of extra time from your plumber working around what's already there.

Then there's the one nobody wants to hear about: asbestos. If your place was built or last renovated before the early 1990s, and a lot of Sydney's older Federation homes, Californian bungalows and post-war brick homes fall into that window, there's a real chance the old wall sheeting or flooring underlay contains it. Discovering it mid-demolition can add $3,000 to $8,000 to a job, and it's exactly the kind of thing a quote can't account for until the walls are actually opened up.

Why waterproofing failures cost so much more than doing it right

We bring this up in almost every consultation, because it's the single biggest expense homeowners face when it goes wrong rather than when it's done properly upfront. NSW Fair Trading's own data shows the average rectification claim for a failed bathroom waterproofing job under the state's Home Building Act statutory warranty sits at roughly $25,000. That's not a renovation cost, that's the cost of fixing someone else's shortcut, usually involving ripping out tiles, replacing rotted framing, and sometimes dealing with water damage that's spread into an adjoining room.

New national building code updates now require waterproofing membranes to be applied directly to the structural substrate rather than over old layers, and there's a stronger focus on making sure surfaces are properly sloped so water actually drains instead of pooling. It's worth asking any renovator directly whether they're NSW licensed for wet area work and whether they'll be providing a compliance certificate once the waterproofing is done. A renovator who's confident in their work won't hesitate to say yes.

Small bathroom, smaller budget?

Not necessarily, and this catches a lot of people out. A small bathroom still needs the same waterproofing, the same plumbing compliance, and often the same quality fixtures as a larger one, so the per square metre cost can actually work out higher. Where you do save is on tiling area and, often, on the vanity and bathtub if you're going with a walk-in shower instead. A well-planned small bathroom in a Sydney terrace or apartment, worked around the existing footprint rather than expanding into the hallway, typically lands in that $14,000 to $22,000 range we mentioned for ensuites, even for a main bathroom.

A few ways to keep costs down without cutting corners on the parts that matter

Keep your plumbing fixtures in their existing positions if the layout already works reasonably well. Choose a mid-range tile with a simple laying pattern rather than a premium tile with a complex one, since labour on intricate patterns adds up fast. And get your renovator to check under the house or behind the existing tiles for anything unexpected before they finalise your quote, not after they've started, so there are no surprises once the job's underway.

Getting a quote that actually means something

The most useful thing you can do before getting quotes is decide upfront whether you're moving anything. A fixed layout with updated finishes is a genuinely different job to a full reconfiguration, and the two shouldn't be priced the same. When you're comparing quotes, ask each renovator to break down waterproofing, tiling, and plumbing separately rather than accepting one lump figure. It makes the comparison honest, and it means you'll know exactly what you're paying for before anyone picks up a tile saw.

If you're ready to get a real number for your own bathroom, based on your actual layout rather than a rough estimate, get in touch for a free quote. We'll walk through your space, talk through what's driving your particular price, and give you a figure you can actually plan around.