Waterproofing in Sydney

Bathrooms, showers and balconies — see the work before you call

Waterproofing in Sydney for bathrooms, showers, laundries, balconies and planter boxes — new membranes before tiling, and repairs where water is already getting through. Compare Sydney waterproofers by photos of their membranes and finished jobs, and check the NSW waterproofing licence.

7 businesses listed under Waterproofing in Sydney.

Leaking balconies in Sydney apartments

Water leaking from a balcony into the apartment or car park below is one of the most common defects in Sydney strata buildings. The balcony membrane and the slab are usually common property, so repairs normally go through the owners corporation rather than the individual owner. Report it to your strata manager and ask the waterproofer to test and document where the water gets in.

Before you hire a waterproofing in Sydney

  • Photograph the leak, the floor and the shower or balcony drain.
  • Ask what surface preparation and membrane system the job includes.
  • Clarify who handles plumbing, tiling and any repairs to damaged flooring.
  • Ask for the written scope and the records supplied after the work.

In Sydney, waterproofing licences are issued by NSW Fair Trading (Service NSW licence check); you can look a licence number up on its website.

Common questions

Who fixes a leaking balcony in a Sydney apartment?
Usually the owners corporation, because the membrane and slab are generally common property. Your strata manager arranges the waterproofer; keep photos of the damage below.
Can you waterproof over old bathroom tiles?
Some repair systems can go over existing surfaces, but they do not solve every leak. The source and condition underneath need checking first.
When does waterproofing happen in a bathroom renovation?
After preparation and relevant plumbing rough-in, before the tiles and final fittings go in.

Waterproofing in other cities

Often hired together

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