Specialised Waterproofing in Narrabeen

Servicing Postcodes

Welcome to Coastwide Waterproofing. Our experienced waterproofers provide internal and external waterproofing services for homes and businesses throughout Narrabeen—from Middle Creek Reserve to Narrabeen Beach. Whether you need the bathroom, balcony or swimming pool waterproofed, we use high-quality products from leading brands to ensure your wet areas are sealed and protected—all at an affordable price.

Speak to our waterproofing contractors today on 02 4306 3524 for a free quote. Like to see some of our previous work? After all, we are proud of it. Click here.

In picturesque Narrabeen, where ocean breezes and salt air are part of daily life, effective waterproofing is essential to protect your property from the elements. At Coastwide Waterproofing, we provide tailored internal and external waterproofing solutions built for the unique coastal conditions of Narrabeen.

Our external waterproofing protects structural elements like balconies, basements, rooftops, and retaining walls from constant moisture and salt exposure. With properties close to the beach and lagoon, guarding against water intrusion is key to preventing long-term damage.

Inside, our internal waterproofing services target wet zones such as bathrooms, kitchens, and laundries—areas most prone to leaks and damp. We apply premium-grade membranes and proven techniques to ensure your interior spaces stay dry, healthy, and compliant with building standards.

Whether you’re updating an existing home or developing near the waterfront, Coastwide Waterproofing delivers reliable, long-lasting protection designed specifically for Narrabeen’s coastal environment.

Ready to get started? Contact our skilled waterproofers today on 02 4306 3524 to book. We service clients throughout Narrabeen and surrounding areas.

Need internal waterproofing for your home or business in Narrabeen? We seal bathrooms, ensuites, powder rooms, laundries and more.

For external waterproofing in Narrabeen, turn to our experienced waterproofers. We seal a variety of external wet areas such as flat roofs, decks/balconies and more.

Need your swimming pool/water feature waterproofed? We waterproof various water-carrying structures for clients throughout Narrabeen and surrounds.

And more! By using quality brands, we can ensure quality results—without hurting the hip pocket. Talk to our friendly waterproofers today on 02 4306 3524 to book a service. We provide comprehensive waterproofing solutions.

At Coastwide Waterproofing, we use products from the following brands:

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