Tanking Waterproofing Coffs Harbour | Bananacoast Waterproofing

Tanking waterproofing is essential when you're dealing with external surfaces like retaining walls, rooftops or exposed decks. At Bananacoast Waterproofing, we provide professional tanking services throughout Coffs Harbour and surrounding areas, using high-performance membranes designed for long-term results. Whether you’re building new or retrofitting existing structures, our team ensures every job is sealed and secured properly from the ground up.

Retaining walls, balconies, decks & rooftops
Sheet & liquid membranes applied professionally
Long-term protection from moisture & water ingress

We bring over 25 years of waterproofing experience to every project, using licensed methods that comply with building standards and deliver real protection. To get expert advice or book your next tanking job, call 0412 065 525.

External areas are exposed to everything — rain, pooling water, shifting soil and structural movement. Our tanking methods are designed to handle it all. We assess the environment, choose the right membrane system and prepare the substrate properly so that water is directed away, not into your building. The result? A dry, protected space with less risk of damage long term.

Full wall & slab tanking systems
External sealing for above & below ground
Work completed by fully licensed professionals

We understand the local conditions and how they affect each build. If you're dealing with persistent damp issues or planning ahead for new construction, we’re ready to help.