Planning a bathroom remodel in Perth or anywhere in WA? Here’s a clear, practical guide on how to redo a bathroom—from budget and compliance to layouts, materials and finishes. As a local, design-led team delivering custom cabinetry WA-wide, Joyce Kitchens helps homeowners align bathroom upgrades with kitchen renovations Perth, laundry renovation Perth and wardrobe fit-outs for a cohesive home.
Plan first: budget, scope and compliance
Whether you’re considering a DIY bathroom remodel or a full-service upgrade, start with the essentials:
- Define scope: cosmetic refresh vs reconfiguration with plumbing changes vs full gut.
- Set a realistic budget and 10% contingency for surprises (water damage, asbestos, plumbing upgrades).
- Compliance: waterproofing must meet AS 3740; electrical work must comply with AS/NZS 3000; some structural changes require approvals. See HIA or Master Builders WA for guidance.
- Engage licensed trades where required; DIY works best for demolition, painting, and styling if you’re confident and insured.
A continuous barrier (liquid-applied or sheet) installed to AS 3740 to prevent water ingress into floors and walls, especially in showers, around baths, and wet areas.
First fix = rough-in of plumbing/electrical before linings. Second fix = fit-off of tapware, vanity, lights and accessories after tiling and painting.
Step-by-step bathroom renovation process
Here are the steps to remodel a bathroom efficiently in Australia—your step by step bathroom renovation, from design to handover.
1) Measure and design
- Site measure; note wall plumb/square, ceiling height, window/door positions.
- Decide layout (e.g., keep plumbing points to control cost). We can mirror styling from a shaker kitchen or contemporary kitchen to create whole-home cohesion.
- Specify storage: custom vanities Perth, mirrored shaving cabinets, niche shelving, soft-close drawers, finger-pull doors, 2‑pack polyurethane or melamine.
2) Selections
- Tiles (slip rating where required), grout, tapware, shower screen (semi-frameless or frameless), vanity benchtop, waterproof underlay, ventilation.
- Confirm appliance-style items: heated towel rails, underfloor heating, demisters, and local sizing quirks (e.g., slimline floor wastes, compact in-wall cisterns).
Related reading: Considering a combo? Our short shower bath guide compares sizes, materials and waterproofing tips for small rooms.
3) Strip-out and prep
- Demolition with dust control and safe disposal. Test for asbestos in pre-1990s homes.
- Repair subfloor, ensure correct fall to waste. Install tile underlay where needed.
4) Services — first fix
- Plumbing rough-in: shower, vanity, bath, WC; ensure water pressure/temperatures are compliant.
- Electrical rough-in: lighting, GPOs, exhaust fan/heat lamps per AS/NZS 3000.
5) Waterproofing
- Apply membrane to AS 3740, including shower floors/walls and around baths/vanities. Obtain a certificate of compliance from your waterproofer.
6) Tiling
- Lay floors first for seamless falls; then walls. Consider rectified tiles for crisp lines; allow for silicone movement joints.
7) Cabinetry and benchtops
- Install custom cabinetry WA-made to suit wet areas. Choose benchtops suitable for moisture and heat.
- Coordinate tones with your kitchen splashback or open‑plan kitchen to tie spaces together.
8) Shower reno and screens
- Install drains, bases, and screens—frameless for minimal look; semi-frameless for value.
- Add built-in niches instead of bulky caddies.
9) Services — second fix
- Fit tapware, mixers, WC, accessories. Electrical fit-off for lights, exhaust, heated towel rail, mirror demisters and pendant lighting (where allowed).
10) Paint, seal, clean and handover
- Use bathroom-grade paints; silicone perimeters neatly. Final clean and defect check.
Materials and finishes that last in WA
Wet-area performance, heat resistance and easy maintenance matter in our climate. Below we compare popular vanity benchtop options, including a note on engineered stone.
Vanity benchtops: comparison
| Material | Pros | Cons | Indicative cost (installed) | Notes for WA |
|---|---|---|---|---|
| Laminate | Budget-friendly, many finishes, quick lead times | Not as heat/scratch resistant as stone; exposed edges need care | $200–$450 per lm | Great for rentals or kids’ bathrooms; consider compact laminate for extra moisture resistance |
| Engineered stone benchtop | Historically durable and attractive | Subject to national safety restrictions | Varies | Note: Engineered stone has been restricted/banned in Australia from 2024–2025. Check current WA regulations and consider alternatives |
| Porcelain / sintered stone | Highly heat, stain and UV resistant; ultra-thin profiles | Requires experienced fabricator; can chip on edges if mishandled | $700–$1,400 per lm | Excellent engineered-stone alternative for bathrooms and kitchens |
| Solid surface (e.g., acrylic) | Seamless joins, repairable, integrated basins possible | Lower heat resistance than porcelain; avoid hot hair tools directly on top | $650–$1,200 per lm | Smooth, hygienic option for family bathrooms |
| Natural stone (granite/marble) | Premium, unique veining | Needs sealing; marble etches with acids | $900–$2,000 per lm | Choose honed finishes for better slip/etch control; specify appropriate sealing |
Other considerations:
- Cabinet finishes: moisture-resistant substrates, 2‑pack polyurethane, durable melamines, or thermolaminates. Match to your shaker kitchen doors or modern flat profiles.
- Tapware: WELS-rated mixers and showers save water; look for solid-brass construction for longevity.
- Shower screens: frameless for a premium, open feel; semi-frameless balances cost and looks.
- Ventilation: size your exhaust to room volume; duct externally in coastal homes to reduce corrosion.
Fixtures and fittings with an allowance in your contract (e.g., tapware). Final cost varies based on your brand/model selections.
Layouts and styles
Layouts
- Single-wall: efficient for narrow rooms—pair with a sliding door.
- Galley layout: vanity one side, shower/WC opposite; maximises circulation.
- Wet room: shower and bath within a fully waterproofed zone—great for small footprints.
- Accessible: wider clearances, hobless showers, linear drains, lever handles.
Related reading: If your space is long or slim, these narrow bathroom layout ideas outline practical plans and door strategies.
Styles
- Coastal WA: light timbers, matte white, brushed nickel tapware to echo an open‑plan kitchen or scullery.
- Classic: shaker profiles, wall sconces; ties nicely with a shaker kitchen and butler’s pantry.
- Contemporary: finger-pull doors, large-format tiles, niche lighting; complements modern splashback choices.
Tip: Consistency across the home—kitchen renovations Perth, bathrooms, laundry renovation Perth and wardrobe fit-outs—creates a premium feel and can boost resale value.
Costs and timelines in Australia
Indicative ranges for WA (materials and licensed trades included):
- Cosmetic upgrade (retain layout): $10,000–$20,000
- Mid-range remodel (better finishes, some reconfiguration): $20,000–$35,000
- Premium / full reconfiguration: $35,000–$70,000+
Timeline: 2–5 weeks on site for a standard remodel, longer for complex layouts or custom stone/porcelain fabrication.
Allowances vary with tile size/format, waterproofing complexity, and joinery detail. For compliance and contract advice, review resources from the Australian Building Codes Board and Master Builders WA.
Real WA examples
Case 1: Fremantle cottage ensuite refresh
Brief: upgrade a bathroom in a heritage cottage without moving services. Solution: compact custom vanity with soft-close drawers, porcelain benchtop, frameless shower, and light coastal palette to match the clients’ shaker kitchen. Result: 3‑week turnaround, water-efficient tapware, and improved storage.
Case 2: Subiaco family bathroom + laundry
Brief: step by step bathroom remodel plus laundry renovation Perth to suit teens. Solution: galley layout, large-format tiles for easy cleaning, semi-frameless shower screen, and cohesive cabinetry across bathroom, laundry, and an adjacent walk-in pantry upgrade. Result: robust finishes, better flow, and coordinated design value.
Practical pre-reno checklist
- Confirm scope: diy bathroom remodel tasks vs licensed trades
- Lock in selections and lead times (tiles, vanity, shower screen, tapware)
- Book licensed plumber, electrician, waterproofer; get certificates
- Plan ventilation/extraction and natural light
- Decide storage: mirrored cabinets, vanity depth, linen
- Choose durable benchtop material suitable for wet areas
- Coordinate finishes with nearby kitchen or wardrobes
- Protect adjacent areas during demolition
- Add 10% contingency to the budget
- Schedule fit-off to align with benchtop and screen install dates
Why Joyce Kitchens
We design and build custom cabinetry for bathrooms, kitchens, laundries and wardrobes across Perth and WA. Our designers balance function and style, from shaker kitchen elegance to contemporary finger-pull minimalism—backed by trusted local installers and compliant waterproofing. If you’re ready to upgrade a bathroom or plan a whole-of-home renovation, we’re here to help.
FAQ
How much does it cost to redo a bathroom in Australia?
In WA, a cosmetic upgrade can start around $10,000–$20,000, mid‑range $20,000–$35,000, and premium $35,000–$70,000+. Final pricing depends on layout changes, tile choice, custom cabinetry, and benchtop materials.
Do I need council approval or permits for a bathroom renovation in WA?
Most like-for-like upgrades don’t require building approval, but structural changes, window alterations, and major plumbing moves may. Waterproofing must meet AS 3740 and electrical work AS/NZS 3000. Always confirm with your local council or a registered builder in WA.
Can I DIY a bathroom remodel in WA? Which tasks must be licensed?
You can DIY demolition, painting, and some cosmetic tasks. Plumbing, electrical, and waterproofing should be undertaken by licensed professionals with compliance certificates. This protects warranties and insurance.
How long does a step by step bathroom renovation take?
Typical on-site time is 2–5 weeks depending on scope, with design/selections and lead times before that. Allow extra time for custom vanities, porcelain fabrication, or complex layouts.
What are the best materials for a vanity benchtop in wet areas?
Porcelain/sintered stone, solid surface, and quality laminates are reliable. Natural stone works with sealing and care. Engineered stone is subject to Australian restrictions—verify current WA regulations and consider alternatives.
Ready to start? Talk to the Joyce Kitchens team about bathroom design, custom vanities Perth, and coordinating your project with kitchen renovations Perth and wardrobe fit-outs for a seamless home.
