What a bathroom reno actually costs in 2026

This is the honest breakdown — what the trades cost, where the budget actually goes, and the line items that catch most people out.

The headline number

A full Gold Coast bathroom renovation in 2026 — strip-out to fit-off, decent finishes — lands in three rough tiers:

• Builder's basic ($18-25k): standard layout, builder-grade tapware, ceramic floor and wall tiles, prefab shower base, basic vanity.
• Mid-tier ($28-40k): quality fixtures (brass or matte black tapware, frameless screen, stone benchtop), better tiles, niche, maybe a wall-hung vanity.
• Premium ($45-70k+): custom layout changes, premium fixtures, large-format tiles, freestanding bath, bespoke joinery, possibly underfloor heating.

Most homeowners we work with land in the mid-tier — that's where the value sits.

Where the budget actually goes

People assume the biggest line item is fixtures or tiles. It's not. Labour is usually the biggest cost. Here's a typical mid-tier reno (~$32k) breakdown:

• Demo & rubbish removal: $1,200-1,800
• Plumbing (rough-in + fit-off): $4,500-6,500
• Electrical: $1,500-2,500
• Waterproofing: $1,800-2,800
• Tiling (labour + adhesives + grout): $5,000-8,000
• Tiles (materials): $1,500-4,000
• Tapware + mixers + shower: $1,500-3,500
• Vanity + benchtop + mirror: $2,000-4,000
• Toilet: $400-1,200
• Bath / shower screen / niche: $1,500-3,500
• Painting + plastering: $800-1,500
• Project management / coordination: $1,500-3,000 (if you're using a builder rather than running it yourself)

Plumbing alone is 15-20% of the job. Done badly, it's the part that comes back to bite you — leaks behind tiles are a nightmare to fix.

What blows the budget

Most over-runs come from three sources:

1. Layout changes. Moving the toilet or shower 1.5m to "open up the space" means relocating drains and waste pipes. That's a $2,000-5,000 add-on right there, not the simple "move the wall" people picture. The drain runs at a fixed grade — you can't just shift it.

2. Hidden damage. Old bathrooms hide things. Once we strip out, we sometimes find rotten timber framing, asbestos backing board (pre-1986 homes), failed waterproofing under tiles, or termite damage. Budget at least $2,000-3,000 contingency for "we didn't know that was there."

3. Fixture creep. Started with a $300 tap budget and now you've fallen for a $900 wall-mounted brass mixer. Across vanity, shower, basin, bath, that adds up fast. We see $4,000 fixture budgets balloon to $7,000.

Trades and order of operations

This is who needs to be on-site and roughly when:

1. Day 1-2: Demo, strip-out, rubbish out.
2. Day 2-4: Carpenter for framing changes, electrician roughs in lights and power, plumber roughs in drains and water lines.
3. Day 4-6: Plasterer patches, sets cement sheet, preps surfaces.
4. Day 6-7: Waterproofing — must dry properly, can't rush.
5. Day 7-12: Tiler does floor and walls (mid-tier reno).
6. Day 12-13: Plumber fit-off — taps, mixers, shower, toilet, bath, basin.
7. Day 13: Electrician fit-off — lights, fans, GPOs, heated towel rails.
8. Day 14: Final coats of paint, shower screen install, sealing, clean.

Most renos run 2-3 weeks of build time. That's not 2-3 weeks of solid work — some days are waiting for waterproofing to dry, or for tiles to be delivered. But you're without that bathroom the whole time.

Common questions on costs

"Can't I save money by buying my own tapware?" Sometimes — but check that the warranty stays valid when supplied-by-owner. Some brands only honour their warranty when installed by their authorised channels. Also, if there's a defect on arrival, you wear the supply problem, not the installer.

"What about online cheap tiles?" Be cautious. Look at the rectified-edge spec and the PEI rating. Cheap tiles can have warped surfaces that no tiler can lay flat. And shipping breakage is your problem, not the supplier's.

"How much do I save going with the same layout?" A lot. Same layout (toilet, shower, basin stay where they are) typically saves $3,000-5,000 on plumbing alone, plus simplifies tiling. If you're cost-conscious, work with the existing layout.

Plumbing — where the value (and risk) sits

Plumbing is the bit you can't see after it's done, and it's the bit that goes wrong worst when it's done badly. Things we look out for that bad bathroom plumbing skips:

• Pressure testing every joint before tiling. Find leaks now, not in 6 months when tile grout cracks.
• Proper fall on the shower waste. Standing water in the shower base = mould, smell, and grout failure.
• Compliant set-out for fixtures. A mixer 5mm off centre looks dreadful when you go to fit the spout.
• Inspections coordinated with the waterproofer. Waterproofing has to seal around every penetration. The plumber finishes rough-in before the waterproofer comes in.

Where to spend, where to save

If your budget is tight, here's our priority order:

• Spend on: waterproofing, mixer cartridges, tapware seals, the shower screen anchor. The stuff you can't easily fix later.
• Save on: the toilet (a $400 unit and a $1,200 unit are 80% the same toilet), the floor tile (people look at the wall tile more), the mirror.
• Spend extra time on: the layout. Get it right on paper. Once concrete drains are set, they're set.

Get a proper quote, not a number off a website

Anyone giving you a "bathroom reno cost" without seeing the bathroom is guessing. Every reno is different — the age of the house, the condition of the framing, the access for trades, the size, the layout, the spec. The numbers above are realistic ranges, but the only number that actually matters is the one in your written quote.

Hills do bathroom reno plumbing quotes for free during business hours. If you're on the Gold Coast and looking to reno, ring us on 0472 657 042 or send us a message through the contact page.