Premium Waterproofing Package · MelbournePremium waterproofing for bathrooms and showers.
Our premium waterproofing package for bathrooms, showers, ensuites and laundries across Melbourne: the Gripset 2P cementitious membrane, over the whole floor and every wall up to the ceiling, applied in two coats to a 1.2 mm dry film, detailed at every junction, pipe and waste, and handed over with a signed certificate from the qualified waterproofers who installed it.
- Membrane
- Gripset 2P cementitious
- Thickness
- 1.2 mm dry film
- Price
- From $90/m² + GST
- Coverage
- Floor and walls to ceiling
Membrane first, finish on top
Waterproofing at a glance
Our premium waterproofing package puts a fully detailed, certified Gripset 2P cementitious membrane over the whole floor and every wall to the ceiling in bathrooms, showers, ensuites and laundries, from $90/m² + GST.
- Best for
- Bathrooms, showers, ensuites and laundries
- Coverage
- The whole floor and every wall to the ceiling, and the ceiling itself where needed: beyond the minimum the Australian standard requires
- System
- Gripset 2P cementitious membrane
- Package includes
- Surface preparation, primer, bond breakers at every junction, sealed pipes and wastes, two membrane coats to 1.2 mm, and a signed certificate
- Compliance
- Installed to the manufacturer's data sheet and the National Construction Code
- Price
- From $90/m² + GST, quoted per job from plans or a site visit
- Under microcement
- Rolled or troweled smooth so the finish above sits flat
- Quoted whole, preparation included
- Plans and drawings welcome
- Reply within one business day
How we waterproof a wet area.
Every bathroom, shower, ensuite and laundry follows the same written specification for the Gripset 2P cementitious membrane.
- 01
Check the substrate
Walls and floors must be structurally sound and stable, with wet-area grade linings installed to the manufacturer’s instructions and current codes.
- 02
Prepare the surface
Clean back to a sound, dry surface. Dust, laitance, old coatings and other contaminants are ground off. Voids, cracks and undulations are filled and levelled with repair mortar, and leak-control flanges are rebated flush into the floor.
- 03
Prime
A primer matched to the surface: one for porous linings, one for non-porous fixtures, and a damp-tolerant primer where the substrate is green or damp.
- 04
Detail the junctions
A bond-breaker band along every wall-to-floor junction and shower wall-to-wall corner, so the membrane can move without tearing. Other joints and niches are sealed and bandaged.
- 05
Seal every penetration
Collars or tape around pipes, taps and fixtures, and flanges at the floor wastes, so there is no gap between the fitting and the substrate for water to find.
- 06
Two coats of membrane
The Gripset 2P cementitious membrane, applied in two coats at a minimum 1.5 litres per square metre, building a 1.2 mm dry film. Turned up and sealed to every penetration and returned into the wastes.
- 07
Finish on top
The membrane is laid smooth and even, free of ridges, ready for microcement. Movement joints are finished in silicone.
Waterproofing under microcement.
Microcement is the finished surface; the waterproofing sits beneath it. Together they make one continuous, near-jointless wet area with no grout to mould and nowhere for water to track.
Because microcement is only 2 to 3 mm thick, it shows what is under it. The membrane is laid smooth and even so the floor and walls above sit flat. Doing both in one studio means one team answers for the whole build-up.
The things
people ask.
For anything specific to your bathroom, the studio is happy to advise.
Ask the StudioMore questions? Read the full FAQ →The Gripset 2P cementitious membrane, a liquid membrane made for internal wet areas. It goes on in two coats over a primer, to a 1.2 mm dry film, with bond breakers at the junctions and sealed collars or flanges at every pipe and waste.
The whole floor and every wall up to the ceiling, and the ceiling as well where the room calls for it. That goes beyond the minimum areas the Australian standard requires, which is why it is sold as a premium package.
Internal wet areas: bathrooms, showers, ensuites and laundries, in homes and commercial interiors across Melbourne.
Yes. Every membrane is signed off by the qualified waterproofers who installed it, and you receive a waterproofing certificate for the work. Keep it with your build records; your builder or building surveyor may ask for it. The system is installed to the manufacturer's technical data sheet and the National Construction Code.
Yes. We can install and certify the membrane ahead of tiling by others, as long as the programme allows the membrane to cure before the tiler starts.
Yes, over a certified waterproofing membrane. That's the order that matters: membrane first, microcement on top. The result is a continuous, near-jointless surface with no grout to mould and nowhere for water to track.
Microcement is only 2 to 3 mm thick, so it follows the surface beneath it. The membrane is rolled or troweled to an even finish, free of ridges, so the microcement above sits flat.
Waterproofing starts from $90/m² + GST. Each job is quoted on its own: area, the number of junctions and penetrations, falls and any substrate repairs all change the price, so we price from plans or a site visit.
It depends on site conditions such as temperature, humidity and ventilation. The membrane cures for as long as the manufacturer specifies for those conditions before microcement or tiles go on, and we build that time into the programme.
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Get a waterproofing quote.
Tell us about the bathroom, shower or laundry and we will be in touch within one business day.