Commercial Waterproofing on the Central Coast

On commercial sites, waterproofing delays can hold everything up—and fixing poor work later costs even more. Coastwide Waterproofing delivers dependable commercial waterproofing across the Central Coast and beyond, including Hornsby and Narrabeen. We work with builders, developers, strata managers and facility teams.

We apply membranes for rooftops, balconies, planters, carparks and more, using systems that meet Australian Standards for durability and compliance. Our team manages timelines carefully, coordinating with other trades to keep projects moving without compromising quality. Whether it’s a multi-storey development or a targeted repair, we deliver practical solutions built to last.

Call our team on 02 4306 3524 to discuss your next commercial project with experienced waterproofers.

Commercial waterproofing isn’t one-size-fits-all. Each site brings different surfaces, traffic levels and drainage requirements—so we tailor every solution to match. Our team works across retail spaces, unit complexes, public buildings and commercial fit-outs, applying sheet and liquid membranes with precision.

We understand the expectations around access, compliance, and timeline management, and we back our work with clear communication from start to finish.

With experience across both new builds and remedial work, we know how to solve problems early and work efficiently in live or staged environments. When it comes to protecting your asset, we bring the right tools, systems and mindset to get the job done properly.