What Does a Bathroom Renovation Really Cost in 2026?

A bathroom renovation is one of the most popular — and most expensive — home improvement projects in Australia. Whether you’re doing a basic cosmetic refresh or a full gut-and-rebuild, understanding the real costs involved will help you budget accurately and avoid the dreaded mid-project blowout.

We’ve analysed thousands of real bathroom renovation quotes from across Australia to give you an honest, detailed cost breakdown for 2026.

Average Bathroom Renovation Costs in 2026

Bathroom renovation costs vary dramatically depending on scope, size, and finish level. Here’s what Australians are actually paying:

Renovation Level	Small Bathroom (3–5m²)	Standard Bathroom (6–8m²)	Large/Master (9–12m²)
Budget refresh (cosmetic only)	$5,000–$8,000	$8,000–$12,000	$10,000–$16,000
Mid-range renovation	$12,000–$18,000	$18,000–$28,000	$25,000–$35,000
High-end renovation	$20,000–$30,000	$30,000–$45,000	$40,000–$65,000+

All prices in AUD, including labour and materials. Prices reflect 2026 national averages.

Breaking Down the Costs by Trade

A bathroom renovation involves multiple specialist trades. Understanding what each one costs helps you see where your money goes and where you might save.

Plumbing — $3,000–$10,000

Plumbing is typically the largest single cost in a bathroom renovation. A licensed plumber handles water supply lines, drainage, hot water connections, and fixture installation.

Like-for-like replacement (fixtures in same position): $2,500–$4,500
Relocating fixtures (moving the shower or toilet): $5,000–$8,000
Full plumbing rough-in (new bathroom from scratch): $6,000–$12,000

Moving plumbing is where costs escalate fast. Every metre of pipe relocation means cutting into the slab or floor structure. If you can keep fixtures in their current positions, you’ll save thousands.

Tiling — $2,500–$8,000

Professional tiling costs depend on the area to be tiled, tile size, and pattern complexity.

Floor tiling: $55–$120 per m² (labour + materials)
Wall tiling: $60–$130 per m²
Feature walls/mosaics: $100–$200+ per m²
Tile removal (existing): $30–$60 per m²

Large-format tiles (600×600mm+) look great but require perfectly flat surfaces and experienced tilers. Budget an extra $500–$1,500 for floor levelling if your existing substrate isn’t flat.

Waterproofing — $800–$2,500

This is non-negotiable. Waterproofing is required by the Building Code of Australia (AS 3740) for all wet areas. A waterproofing membrane must be applied to the shower floor, shower walls (to at least 1800mm height), and any areas subject to water splash.

Shower only: $800–$1,200
Full bathroom floor + shower: $1,200–$2,000
Full bathroom including all walls: $1,800–$2,500

Never skip or cut corners on waterproofing. Water damage from a failed membrane can cost $20,000–$50,000+ to fix, especially in multi-storey homes where it affects the level below.

Electrical — $800–$3,000

A licensed electrician handles lighting, exhaust fans, heated towel rails, and power points. Bathroom electrical work has strict safety requirements (AS/NZS 3000) regarding zones and IP ratings.

New lighting (4–6 LED downlights): $400–$900
Exhaust fan installation: $200–$500
Heated towel rail (hardwired): $300–$600
Power point + shaver socket: $150–$350
Underfloor heating (electric): $800–$2,000

Demolition & Removal — $1,000–$3,000

Stripping an existing bathroom down to the studs and removing the waste costs $1,000–$3,000 depending on the size and what needs to go. This includes removing tiles, fixtures, vanity, and sometimes the ceiling. You’ll also need a skip bin ($300–$500 for a 3–4m³ bin).

Fixtures & Fittings — $2,000–$10,000+

This is where personal taste drives the budget. Here’s what to expect:

Item	Budget	Mid-Range	Premium
Toilet	$250–$450	$500–$900	$1,000–$3,000
Vanity + basin	$300–$600	$700–$1,500	$1,500–$5,000
Shower screen	$300–$600	$600–$1,200	$1,200–$3,000
Tapware set	$200–$400	$400–$900	$1,000–$3,000
Bath (if applicable)	$400–$800	$800–$2,000	$2,000–$8,000
Mirror/cabinet	$100–$300	$300–$800	$800–$2,000

What Affects Bathroom Renovation Costs?

1. Location

Trade rates vary significantly by city. Expect to pay 15–25% more in Sydney and Melbourne compared to Adelaide, Perth, or regional areas. A mid-range bathroom reno that costs $20,000 in Brisbane could easily hit $26,000 in Sydney’s inner suburbs.

2. Structural Changes

The moment you move walls, relocate plumbing, or change the floor plan, costs jump by $5,000–$15,000. If you’re on a budget, work with the existing layout.

3. Access

Upper-storey bathrooms cost more because materials need to be carried upstairs and waste carried down. Multi-storey waterproofing is more critical (and inspected more rigorously). Heritage homes with lath-and-plaster walls add complexity and cost.

4. Age of the Home

Pre-1980s homes may have asbestos in walls, floors, or eaves. Licensed asbestos removal adds $1,500–$5,000. Old galvanised pipes will likely need replacing, adding to plumbing costs.

5. Permits

Most bathroom renovations don’t need council approval unless you’re changing the building’s footprint or doing structural work. However, all plumbing and electrical work requires licensed tradespeople who issue compliance certificates.

How to Save Money on Your Bathroom Renovation

Keep the existing layout

The single biggest money-saver. Keeping your toilet, shower, and vanity in the same positions avoids expensive plumbing relocation. A cosmetic renovation with new tiles, fixtures, and paint can transform the look for half the price of a full reconfiguration.

Choose mid-range fixtures

Premium tapware and fixtures rarely add proportional value. A $500 mixer tap works just as well as a $2,000 one in most cases. Invest in quality where it matters (waterproofing, plumbing) and save on aesthetics.

Supply your own materials

Many tradespeople will install tiles, fixtures, and fittings you supply. You can source these from outlets like Bunnings, TileCloud, or online retailers at better prices than trade suppliers charge.

Get 3–5 quotes

Prices for identical bathroom renovations can vary by 30–50% between contractors. Always get at least three detailed, itemised quotes. Beware of quotes that are significantly cheaper — they often exclude waterproofing, demolition, or waste removal.

Avoid scope creep

Decide everything before work starts. Changing your mind on tile selection mid-project, adding a heated towel rail, or deciding to move the vanity after demolition will blow your budget and timeline.

Bathroom Renovation Timeline

A typical mid-range bathroom renovation takes 2–4 weeks:

Week 1: Demolition, plumbing rough-in, electrical rough-in
Week 2: Waterproofing (requires 24–48hr cure time), floor levelling
Week 3: Tiling (walls then floor, with grout curing time)
Week 4: Fixture installation, electrical fit-off, final plumbing connections, painting, cleaning

Budget an extra week for high-end renovations or if structural changes are involved.

Frequently Asked Questions

How long does a bathroom renovation take?

A standard mid-range renovation takes 2–4 weeks. Budget refreshes (paint, fixtures, accessories) can be done in 3–5 days. Full luxury renovations with structural changes may take 6–8 weeks.

Do I need a building permit for a bathroom renovation?

Generally no, unless you’re making structural changes (removing walls, changing the roofline, or altering the building envelope). However, all plumbing and electrical work must be done by licensed professionals who issue compliance certificates. Your waterproofer should also provide a certificate of compliance.

Can I renovate a bathroom for under $10,000?

Yes, if you keep the existing layout and do a cosmetic refresh: new tiles over existing (if structurally sound), new fixtures, repaint, new accessories. You won’t be able to do a full strip-and-rebuild for under $10,000 unless you’re doing some of the non-trade work yourself (demolition, painting).

What adds the most value in a bathroom renovation?

Quality waterproofing (protects your investment), good ventilation (prevents mould), and modern fixtures (visual impact). A well-executed mid-range bathroom adds more value than a half-finished luxury one. Focus on getting the fundamentals right.

Should I renovate before selling my house?

A dated bathroom can reduce your sale price by $10,000–$30,000 or more. A mid-range renovation ($15,000–$25,000) typically returns 1.5–2x the investment at sale. But don’t over-capitalise — a $50,000 luxury bathroom in a $600,000 house won’t return its cost.

What’s the most common mistake in bathroom renovations?

Underestimating the budget. Most bathroom renovations go 10–20% over the initial quote due to unexpected issues (rotten framing, old plumbing, asbestos) or scope changes. Always keep a 15–20% contingency fund.

How We Collect These Prices

Our pricing data comes from real quotes and completed projects reported by Australian homeowners and verified tradespeople across all major cities. We update quarterly to reflect current material costs and labour rates.

For more detailed pricing on specific trades:

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