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Certified Waterproofing in Woy Woy

Professional Waterproofing in Woy Woy

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Fixed Prices

No Service Call


Reliable Service

Fully Licensed

New South Wales

High Quality


All Your Waterproofing Needs

Need a waterproofing contractor you can depend on? Cue Coastwide Waterproofing! Our qualified waterproofers provide internal and external waterproofing services for residential and commercial clients throughout Woy Woy—from Lions Park to Mount Wondabyne. Using quality products from leading brands, we waterproof:




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And much more! Simply put, we are your comprehensive waterproofing solution. Speak to our friendly team on (02) 4306 3524 to book a free quote. Just need waterproofing supplies? Learn more about our trade warehouse here.

Products We Stock

At Coastwide Waterproofing Supplies, we stock the following waterproofing products:

OX Products — Internal Waterproofing in Central Coast, NSW

And many more! Whatever you need, whether it’s supply and installation or supply only, our friendly team will point you in the right direction. Call us today on (02) 4306 3524 or visit our trade warehouse. We are your comprehensive waterproofing solution.

Like to see some of our previous projects? Click here.

Products & Supplies

We have a wide range of waterproofing products available for supply only or supply and installation throughout Woy Woy and surrounds.

Internal Waterproofing

Need your bathroom waterproofed? We provide internal waterproofing for homes and businesses throughout Woy Woy and surrounding areas.

External Waterproofing

We are Woy Woy’s external waterproofing experts, sealing a variety of external wet areas, including flat roofs, decks, retaining walls and more.

Swimming Pools & Water Features

We waterproof a wide range of water-carrying structures for Woy Woy residents, including swimming pools, water features, concrete water tanks and more.


Need commercial waterproofing services in Woy Woy? We’ve got it covered—internal and external waterproofing, to be exact.

Brands We Source

Our qualified waterproofers supply and use the following brands:

And many more! Whether you need internal or external waterproofing services, we’ve got quality products from leading brands to ensure an effective result. Ready to get started? Call Coastwide Waterproofing today on (02) 4306 3524 for a free quote. We service residential and commercial clients throughout Woy Woy and surrounding areas.

Frequently Asked Questions

On average, waterproofing lasts at least ten years in the bathroom.

If your existing waterproofing is broken or needs remediation, professional waterproofers are qualified to perform re-grout and resealing.

Waterproofing is a specialised job and a costly mistake if not performed correctly. Therefore, it’s best left to the professionals.

Waterproof means water will not penetrate, whereas water resistance means it can only withstand a certain amount of moisture before penetration.