How much does a bathroom renovation cost in Perth?
Bathroom renovations in Perth represent a significant investment that transforms both daily living and property value. As of 2026, a standard bathroom renovation in Perth costs between $18,000 and $30,000, with budget refreshes starting from $8,000–$15,000 and premium transformations reaching $30,000–$50,000+. Perth typically sits 10–20% below Sydney and 5–10% below Melbourne for equivalent bathroom work.
WA's construction boom and bust cycles create unique market dynamics. When the mining sector is strong, skilled tradespeople migrate to resource projects, pushing metro renovation prices up and extending lead times. In softer mining periods, competition increases and Perth homeowners get better value. As of 2026, the market is relatively balanced, with good trade availability and competitive pricing.
Perth's sandy soil conditions and Mediterranean climate also influence bathroom construction — waterproofing is critical given the reactive nature of Perth's sand-over-limestone foundations, and ventilation design must account for the city's hot, dry summers and mild, damp winters.
| Service | Low | High | Average |
|---|---|---|---|
| Basic renovation (budget fittings) | $10,500 | $21,000 | $15,750 total |
| Mid-range renovation | $21,000 | $36,750 | $28,350 total |
| Premium renovation | $36,750 | $57,750 | $44,100 total |
| Luxury renovation | $57,750 | $84,000 | $68,250 total |
| Waterproofing | $1,050 | $3,150 | $1,890 total |
| Tiling (floor + walls) | $2,100 | $6,300 | $3,675 total |
| Vanity (supply + install) | $525 | $3,675 | $1,575 total |
| Shower screen (frameless) | $840 | $2,625 | $1,575 installed |
| Bath (freestanding, installed) | $1,575 | $5,250 | $2,940 installed |
| Toilet (supply + install) | $420 | $1,260 | $735 installed |
| Heated towel rail | $210 | $630 | $368 installed |
| Plumbing rough-in | $2,100 | $5,250 | $3,150 total |
| Demolition & disposal | $1,050 | $3,150 | $1,890 total |
Prices include GST. Based on Perth metro area, Feb 2026. Outer suburbs may vary.
Inner & Western Suburbs
Subiaco, Claremont, Cottesloe, Mount Lawley. Character homes from the 1920s–50s with original bathrooms. Asbestos in wall linings is common in pre-1990 homes. Heritage overlays in some streets may restrict visible external changes. Older plumbing (galvanised steel or lead pipes) often needs replacing during renovation, adding $2,000–$5,000. These suburbs' high property values justify premium bathroom investments.
Northern Suburbs
Joondalup, Wanneroo, Duncraig, Hillarys. Mix of 1980s–2000s homes with standard bathroom layouts and good access. Concrete slab construction simplifies waterproofing. Competitive local trade rates. These suburbs represent Perth's most predictable renovation costs — few surprises behind the walls.
Southern Suburbs
Rockingham, Mandurah, Baldivis, Armadale. Most affordable area for bathroom renovations in Perth. Newer homes (2000s–2020s) with builder-grade bathrooms that need cosmetic upgrading rather than structural work. The high volume of similar homes creates efficiency for renovators, keeping costs competitive.
Eastern & Hills Suburbs
Kalamunda, Mundaring, Midland. Established homes on larger blocks, some with access challenges that increase trade costs. Hills properties may have additional plumbing complexity due to elevation. Older homes (1960s–80s) in these areas can hold surprises — check for termite damage and outdated plumbing before finalising renovation budgets.
Budget ensuite refresh
Keep existing layout and plumbing positions. Replace vanity ($400–$1,200), toilet ($300–$800), tapware ($200–$600), mirror and accessories. Resurface or paint existing tiles ($1,500–$3,000). New shower screen ($400–$800). Quick turnaround of 1–2 weeks. Best for investment properties or ensuites in otherwise sound condition.
Standard full renovation — mid-range
Complete strip-out: demolition ($1,200–$2,500), plumbing rough-in ($2,000–$4,500), electrical ($600–$1,500), waterproofing to AS 3740 ($500–$900), floor and wall tiling ($2,500–$5,500 including tiles at $30–$55/m²), vanity ($800–$2,500), toilet ($400–$800), shower screen ($500–$1,200), tapware ($300–$800). Timeline: 3–5 weeks. Perth's most common renovation scope — the slab-on-ground construction typical of WA homes makes waterproofing more straightforward than in raised timber-floor homes.
Premium bathroom — high-end finishes
Layout changes, premium porcelain or natural stone tiles ($80–$150/m²), freestanding bath ($1,500–$5,000), wall-hung vanity with stone top ($2,000–$5,000), frameless shower screen ($1,200–$2,500), premium tapware (Brodware, Sussex, Astra Walker at $500–$1,500), underfloor heating ($800–$1,500), LED niches, heated towel rail. Perth's dry climate means underfloor heating is less essential than in Melbourne but still popular for winter mornings.
Second bathroom addition
Converting a laundry, storage room, or section of a bedroom into an additional bathroom. Includes all new plumbing ($3,000–$6,000), electrical ($1,000–$2,000), waterproofing, tiling, fixtures, and potentially structural work. This is a common project in older Perth homes that were built with only one bathroom. Adding a second bathroom to a 3-bedroom home can add $30,000–$60,000 to property value in Perth's market.
Bathroom size
A small ensuite (3–4sqm) costs significantly less than a main bathroom (6–8sqm). More floor area = more tiling, waterproofing, and materials.
Waterproofing
Mandatory in Australia. All wet areas must be waterproofed to Australian Standards. This costs $1,000–$3,000 and must be inspected before tiling.
Tile selection
Basic tiles cost $20–$40/sqm. Premium large-format or feature tiles run $80–$200/sqm. Tile choice is one of the biggest variables in a bathroom budget.
Layout changes
Moving the toilet, shower, or vanity means new plumbing runs, which adds $2,000–$5,000 to the job.
Fixture quality
A builder-grade vanity is $300–$800. A custom floating vanity is $1,500–$4,000. Similar ranges apply to taps, showers, and accessories.
Structural issues
Water damage, rotten framing, or asbestos discovered during demolition can add $2,000–$10,000 in unexpected costs.
Builder registration: In WA, builders must be registered with the Building Services Board. For bathroom renovations exceeding $20,000, a registered builder is required. For smaller projects, a registered building contractor or appropriate tradesperson can perform the work. Verify registration at the DMIRS website.
Waterproofing: All wet areas must comply with AS 3740 and the National Construction Code. In WA, waterproofing must be inspected by a building surveyor before tiling begins. Perth's sandy soil conditions mean ground moisture can migrate through slabs — proper waterproofing isn't just about protecting against showers, it's about managing ground-level moisture as well. Budget $500–$900 for professional waterproofing of a standard bathroom.
Plumbing: All plumbing must be completed by a WA-licensed plumber, with work inspected by the plumbing regulator. Ensure your plumber provides a compliance certificate on completion.
Home indemnity insurance: For residential building work over $20,000 in WA, home indemnity insurance is required. This protects homeowners if the builder becomes insolvent or dies before completing the work or rectifying defects.
Our Methodology
Prices on this page are compiled from publicly available cost guides, tradie marketplaces (ServiceSeeking, hipages, Airtasker, Service.com.au), industry body data (HIA, Master Builders), and individual tradesperson websites across Australia. We cross-reference ranges from multiple sources and adjust for city-specific cost differences based on advertised rates, salary data, and cost-of-living indicators. Our guides are independently produced — we don't employ tradespeople and have no financial incentive to inflate or deflate prices. All prices are estimates and will vary based on your specific job. Always get at least 3 quotes. Last reviewed February 2026. Read our full methodology →