How Much Does a Bathroom Renovation Cost in Australia?

If you're thinking about renovating your bathroom, one of the first questions you'll probably ask is:

"How much is this actually going to cost?"

The truth is, bathroom renovation costs can vary significantly depending on the size of the room, the quality of the products selected, the amount of structural work required and the complexity of the renovation.

While every project is different, understanding where your money goes can help you budget more effectively and avoid unexpected surprises along the way.

Want to see how your selections fit within your overall renovation budget? Try our free Bathroom Renovation Budget Calculator to calculate your known selections, contingency and how much of your budget remains for renovation works.

What Does a Bathroom Renovation Typically Cost?

As a general guide, homeowners across Australia can expect the following price ranges:

Budget Bathroom Renovation

$15,000 – $25,000

Typically includes:

• Retaining the existing layout

• Standard tiles and fixtures

• Basic shower screen

• Standard vanity and toilet suite

• Minimal plumbing and electrical changes

Mid-Range Bathroom Renovation

$25,000 – $40,000

Typically includes:

• New layout or improved functionality

• Higher quality tiles and finishes

• Semi-frameless or frameless shower screens

• Better quality tapware and accessories

• Feature lighting and upgraded fittings

Premium Bathroom Renovation

$40,000+

Typically includes:

• Custom cabinetry

• Premium tapware and fixtures

• Designer tiles and feature walls

• Walk-in showers

• Underfloor heating

• Smart mirrors and luxury upgrades

Every renovation is unique, so these figures should be treated as general guides rather than fixed prices.

If you're renovating in Australia, bathroom renovation costs can vary considerably depending on the age and condition of the home, accessibility, layout changes, product selections and the amount of preparation required.

Older Australian homes can also reveal additional work once demolition begins, such as outdated plumbing, damaged flooring, previous waterproofing issues or walls and floors requiring additional preparation.

Rather than relying on a single average price, compare quotes based on exactly what is included — particularly demolition, plumbing, electrical work, waterproofing, tiling, fixtures, waste removal and any allowances.

Where Does the Money Go?

Many homeowners are surprised to discover that bathroom renovation costs involve far more than simply purchasing tiles and tapware.

The total price only tells part of the story. When comparing renovators, make sure you understand the scope, allowances and exclusions by reading our guide to what should be included in a bathroom renovation quote.

A typical bathroom renovation budget may include:

Demolition

The existing bathroom must be carefully removed before work can begin. This includes removing old fixtures, tiles, cabinetry and disposing of waste materials.

Plumbing

Bathrooms contain some of the most complex plumbing systems in the home.

Costs may include:

• New pipework

• Shower relocation

• Vanity relocation

• Toilet relocation

• New drainage systems

The more changes made to the layout, the higher the plumbing costs are likely to be.

Planning to move the bathroom to another part of the home? Relocating a bathroom can introduce additional plumbing, drainage, electrical and construction costs that should be investigated before setting your budget.

Electrical

Electrical work often includes:

• New lighting

• Exhaust fans

• Power points

• Heated towel rails

• Mirror cabinets with lighting

Electrical upgrades are commonly overlooked during the initial planning stage.

Waterproofing

Waterproofing is one of the most important components of any bathroom renovation.

A properly waterproofed bathroom helps protect the structure of your home and prevents expensive water damage in the future.

Tiling

Tiles are often one of the largest product selections homeowners make.

However, many people don't realise that tile choice can also impact labour costs.

For example:

• Smaller tiles often require more cuts and grout lines.

• Large format tiles may require additional preparation and handling.

• Complex patterns can significantly increase installation time.

Fixtures and Fittings

This includes:

• Vanity

• Toilet suite

• Shower screen

• Bath

• Tapware

• Accessories

• Mirrors

Product selections can vary dramatically in price depending on brand, quality and design.

Hidden Costs Homeowners Should Allow For

Even with the best planning, unexpected costs can arise once demolition begins.

Common examples include:

Water Damage

Leaking showers and failed waterproofing can cause hidden damage behind walls and under floors.

Outdated Plumbing

Older homes may contain plumbing that no longer meets current requirements.

Electrical Upgrades

Switchboards and wiring may need upgrading to accommodate new fixtures and appliances.

Structural Repairs

Rotten timber, damaged flooring and wall repairs can sometimes only be discovered after demolition.

For this reason, it is wise to allow a contingency budget of approximately 10–15% of the overall renovation cost.

How Can You Keep Costs Under Control?

The best way to manage renovation costs is through planning.

Consider the following:

Finalise Selections Early

Choosing products before construction begins reduces delays and helps prevent expensive changes later.

Keep the Existing Layout

Bathroom layout mistakes, moving toilets, showers and vanities often increases plumbing costs.

Understand Labour Costs

Product choices can influence installation costs just as much as material costs.

Allow a Contingency

Unexpected issues are common in renovation projects. A contingency fund can help reduce stress if surprises arise.

Final Thoughts

A bathroom renovation is a significant investment, but it can also be one of the most rewarding improvements you make to your home.

Understanding where your money goes, planning a bathroom renovation carefully and making informed decisions can help you achieve a better outcome while reducing the risk of costly surprises.

Whether you're planning a simple refresh or a complete transformation, taking the time to understand the costs involved is one of the smartest first steps you can take.

Planning a Bathroom Renovation? Start With the Free Checklist

Before demolition begins, there are a surprising number of decisions to make — and missing even one can mean delays, unexpected costs or last-minute compromises.

Download our FREE Australian Bathroom Renovation Planning Checklist with 15 essential things to organise before demolition begins.

Want More Renovation Advice?

Own Your Reno | Bathroom Edition contains over 200 pages of practical renovation advice, budgeting tools, planning guides and checklists designed specifically for Australian homeowners.

Built from lessons learned across more than 500 completed renovations, it's designed to help you plan smarter, avoid costly mistakes and renovate with confidence.

About the Author

Laura Faulkner is the founder of Own Your Reno. Drawing on experience from more than 500 completed renovations, Laura created the Own Your Reno series to help Australian homeowners plan smarter, avoid costly mistakes and renovate with confidence.