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Providing Internal Waterproofing on the Central Coast

Fixed Prices

No Service Call


Reliable Service

Fully Licensed

New South Wales

High Quality


Internal Wet Area Specialists

Contracted to build a new home or renovate it? At Coastwide Waterproofing, we provide comprehensive internal waterproofing services for homes throughout the Central Coast and Northern Sydney, including Woy Woy, Killarney Vale, Terrigal, Hornsby and Narrabeen. Our licensed waterproofers use high-quality products from leading brands to ensure all wet areas are effectively waterproofed. All work is completed in accordance with Australian Standard 3740-2010 and the Building Code of Australia.

Ready to get started? Speak to our experienced team on (02) 4306 3524 to book a free quote. Our rates are highly competitive.

Waterproofing Inside the Big House — Internal Waterproofing in Central Coast, NSW

What We Waterproof

At Coastwide Waterproofing, we waterproof the following internal wet areas:




Powder Rooms


Whether it’s a new build or renovation, we have your waterproofing needs covered. Get in touch with our qualified waterproofers today on (02) 4306 3524 to book. In the market for waterproofing supplies? Our trade warehouse, Coastwide Waterproofing Supplies, is open Monday to Friday.

We also provide external waterproofing services.