Accessible Bathroom Renovation Cost in Perth: What to Expect in 2026

What does an accessible bathroom renovation actually cost in Perth?

A full accessible bathroom renovation in Perth ranges from $12,000 to $45,000. That covers a complete redesign: removing the bath, installing a level-entry shower or wet room, replacing the toilet with a higher pan, adding grab rails and lever tapware, and relaying anti-slip flooring throughout.

A walk-in shower conversion is quoted against the same figures as a full bathroom, from $12,000. That job involves removing the shower hob, waterproofing the new floor area, installing a fold-down or flip-up seat, and fitting a hand-held hose on a riser rail.

Grab rails alone cost $180 to $450 each, fully installed. The price depends on the wall substrate (tiling over a timber frame versus a concrete or blockwork wall) and the rail's length and load rating.

The three things that move the price most

Layout changes are the biggest variable. If your existing drain can stay where it is and your walls don't move, the quote stays lower. The moment a plumber needs to shift a drain - to widen the shower area, for example - you are looking at an extra $3,000 to $8,000 just for that one item.

Wall and floor substrate matters too. Removing ceramic tiles from cement-sheet walls is straightforward. Removing tiles from old fibrous cement sheeting (common in Perth homes built before 1990) takes longer and requires careful handling. Concrete block or brick bathroom walls add time but give a more solid fixing for rails.

Fixture specification is the third driver. A thermostatic mixer with a separate hand-held hose and riser rail costs more than a basic shower kit, but the temperature control it provides is a genuine safety upgrade for anyone sensitive to hot water. The gap between budget and mid-range fixtures is typically $1,500 to $3,500 on a full project.

• Drain relocation: add $3,000 - $8,000
• Fibrous cement sheet removal (pre-1990 homes): add $1,200 - $2,500 in labour
• Thermostatic mixer vs standard: add $800 - $1,800 for the fitting
• Wall-hung basin vs floor-mounted pedestal: add $400 - $900 for the wall reinforcement
• Doorway widening: add $3,000 - $4,000 per door

What does a wet room conversion cost?

A wet room conversion - where the entire bathroom floor becomes the shower zone, with a continuous waterproof membrane and a floor drain - runs $15,000 to $45,000 in Perth. The wide range reflects room size, whether the floor needs to be lowered to achieve the correct gradient, and how much wall tiling is involved.

The floor gradient is non-negotiable. Australian Standard AS 3740 requires a minimum 1:80 fall to the drain in a wet area, though 1:60 is more practical for wheelchairs and avoids pooling. In a standard Perth slab home, achieving this often means grinding the concrete or building up the floor in other areas to create the fall - that adds cost but cannot be skipped.

Wet rooms cost more to waterproof correctly than a standard shower recess. The entire floor and walls to 1,500 mm height (or 150 mm above the highest fitting) need a membrane, and the door threshold must be either eliminated or reduced to a 10 mm lip at most.

Costs for specific items

Not every accessible modification requires a full renovation. Here are typical Perth 2026 installed prices for common items.

• Fold-down shower seat: $380 - $650 installed
• Hand-held shower hose and riser rail: $280 - $550 installed
• Lever tapware (set of three): $320 - $800 installed, depending on specification
• Thermostatic mixer: $900 - $1,800 installed
• Toilet pan raised to 450 mm height: $480 - $950 installed
• Non-slip floor resurfacing (existing tiles): approx $50 per square metre, from $1,000 for a bathroom
• New anti-slip ceramic flooring (supply and lay): $85 - $160 per square metre
• Doorway widening: $3,000 - $4,000 per door

What you will not get for under $5,000

Some websites advertise accessible bathroom upgrades from $3,000 or $4,000. That price range covers a few grab rails and perhaps a new showerhead - it does not cover a structural change to the shower, a level-entry floor, or any tiling work. It is fair for what it is, but it does not make a bathroom genuinely accessible for someone with significant mobility needs.

A walk-in shower conversion that removes the hob, waterproofs properly and installs a fold-down seat costs at least $12,000 in Perth. Anything quoted well below that either skips the waterproofing standards or leaves you with a shallow gradient that pools water and becomes a slip hazard.

The work has to be waterproofed to AS 3740 and the final inspection has to confirm that. Ask any contractor for their waterproofing warranty in writing before you accept their quote.

How to get an accurate quote

An accurate accessible bathroom quote requires a site visit. A reputable company will measure the room, assess the wall substrate, locate the drain position relative to where you want the shower, and check whether the doorway needs widening. Quotes generated from photos alone tend to miss the substrate and drain issues that drive cost.

Before anyone visits, it helps to be clear about the goals: who will use the bathroom, what they find difficult today, and whether the priority is the shower, the toilet, or both. That shapes the whole scope of work.

AccessAble takes quote requests directly, so you can describe what you are trying to achieve and get a price without committing to anything. There is also a $149 home safety audit that covers the whole house, not just the bathroom.