Tag Archives: Waterproofing


Waterproofing is the process of making a structure waterproof to resist the ingress of water. Water ingress is often caused by failing waterproof membranes, cavity flashings, window flashings and door flashings. When these fail, water/moisture can penetrate further into the interior of the building creating major issues.

Our team of highly qualified Sydney waterproofers are licensed and insured to undertake all waterproofing repairs including leaking balconies and replace cavity flashing around doors and windows.

All residential, commercial and strata waterproofing problems fixed.

From small projects to major works, you can be assured that any work undertaken by the team at Prembuild Group will deliver a premium finish every time.

Based on the Northern Beaches, we service all Sydney suburbs including the North Shore, Inner West, Eastern Suburbs, Western Suburbs, Ryde and Inner City.