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Licensed bathroom waterproofing required for ensuite renovation. Scope: apply full-system waterproof membrane to shower recess (approx 1.0m x 0.9m) and entire ensuite floor (total floor area 4.8 m²; room dimensions 3.0m x 1.61m) over a concrete slab. Include flashing and sealed junctions around central floor waste (located outside shower), recessed shower wall niche, and all penetrations (mixer/tap, shower arm). Work to comply with AS 3740 and provide compliance certificate and warranty on completion. Note: tiler already engaged; waterproofer to complete membrane and seal prior to tiling. Access from front door; job timeframe: within next few days to a week. Please provide written quote, confirmation of licence, public liability insurance, proposed start date and expected duration, and any prep required before arrival

The shower on the first floor appears to be leaking water, the waterproofing may have failed, the 2nd image is of the water damage on the ceiling, directly underneath the shower. Need someone to fix it, probably need to take the tiles out, waterproof it, then put the tiles back. So experience is necessary, not just a handyman job. Please give quote for the whole job.