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

If you've started pricing a bathroom renovation in Melbourne, you've probably already noticed the range is enormous — quotes anywhere from $10,000 to $80,000 for what sounds like a similar job. That range isn't renovators being cagey; it reflects genuinely different scopes of work, and understanding what sits behind the number is the best protection against a quote that blows out once demolition starts. Here's a realistic breakdown of what bathroom renovations actually cost in Melbourne in 2026, and the factors that move your project up or down that scale.

Average Bathroom Renovation Costs in Melbourne (2026)

Pricing depends heavily on bathroom type, size, and finish level. Based on projects completed across Melbourne, here's roughly where most renovations land:

• Small bathroom (under 5sqm): $12,000 to $22,000 — common in period homes, apartments, and older weatherboards with a compact footprint.
• Standard bathroom or ensuite: $14,000 to $25,000 — a full renovation with new tiling, vanity, shower, and fixtures in a typical 5-8sqm space.
• Luxury bathroom: $35,000 to $70,000+ — stone benchtops, freestanding baths, heated flooring, premium tapware, and custom cabinetry.
• Accessible bathroom (NDIS or home modification): $18,000 to $35,000 — level-entry showers, reinforced walls, wider doorways, and compliant clearances.
• Waterproofing or shower repair only: $1,500 to $8,000 — depending on whether it's a spot repair or a full membrane replacement with retiling.

These are realistic ranges for Melbourne metro in 2026, not the very bottom of the market. Prices well below these bands usually mean corners are being cut somewhere — most often waterproofing, which is the one place you genuinely can't afford a shortcut.

What Actually Drives the Cost of Your Renovation

Two bathrooms of a similar size can end up $15,000 apart in price. The difference almost always comes down to a handful of factors:

• Layout changes: Moving a toilet, shower, or vanity means relocating plumbing and drainage, which adds cost compared with keeping fixtures in their existing positions.
• Waterproofing condition: If your existing waterproofing has failed, or the subfloor has water damage, that repair work needs to happen before the new bathroom goes in.
• Tile size and material: Large-format porcelain and natural stone cost more to buy and lay than standard ceramic tile, and can require additional substrate preparation.
• Fixture and tapware brand: A basic chrome mixer and a designer tapware set can differ by hundreds of dollars per fixture, and a bathroom typically has several.
• Structural work: Removing a wall, widening a doorway, or reinforcing framing for accessibility adds labour and, sometimes, engineering sign-off.
• Access and site conditions: Second-storey bathrooms, narrow hallways, or heritage-overlay properties can slow demolition and material access, adding time and cost.
• Permits and approvals: Most straightforward renovations don't need a building permit, but structural changes or heritage properties sometimes do, which adds time and a fee.

A Sample Cost Breakdown for a Standard Bathroom

To make this concrete, here's roughly how an $18,000 standard bathroom renovation typically breaks down:

• Demolition and disposal: around $1,500 to $2,500
• Waterproofing (AS 3740 compliant): around $1,800 to $3,000
• Tiling (supply and install): around $4,000 to $6,500
• Vanity, toilet, and shower fixtures: around $3,500 to $6,000
• Plumbing and electrical: around $2,500 to $4,000
• Labour, project management, and finishing: the remainder

Every renovation is different, but this gives a sense of where the money actually goes. Waterproofing is a relatively small line item compared with tiling or fixtures, which is exactly why it's the wrong place to cut costs — fixing a failed membrane later, including any damaged flooring or ceilings, is almost always more expensive than doing it properly the first time.

Where Homeowners Get Burned on Bathroom Renovation Costs

The biggest cost blowouts we see in Melbourne renovations rarely come from bad luck — they come from how the job was quoted in the first place:

• Vague or verbal quotes: A number scribbled on a business card isn't a fixed price. Without a detailed, written, fixed-price quote, "extras" can appear at every stage of the job.
• Unusually low quotes: If one quote is dramatically lower than the others, it's worth asking exactly what's included — waterproofing, permits, and disposal are common omissions.
• No allowance for hidden issues: Older Melbourne homes often reveal water damage, outdated plumbing, or asbestos sheeting once demolition starts. A good quote flags this risk upfront rather than treating it as a surprise "variation."
• Uninsured or unlicensed trades: Cash-in-hand waterproofing or plumbing might save money upfront, but you have no recourse — and no warranty — if it fails down the track.
• No single point of accountability: Managing separate tilers, plumbers, and electricians yourself can look cheaper on paper, but scheduling gaps and miscommunication between trades often cost more in delays than they save in fees.

How to Get an Accurate Quote

The only way to get a genuinely accurate price is to have someone measure your specific bathroom, assess the condition of existing plumbing and waterproofing, and confirm your fixture and finish selections before committing to a number. A rough phone estimate can only ever be a ballpark. A proper on-site assessment is what turns that ballpark into a fixed price you can actually rely on — one that won't move once the old tiles come off the wall.