Follow Us

Licensed Waterproofing in Killarney Vale

Professional Waterproofing in Killarney Vale

"*" indicates required fields

Fixed Prices

No Service Call


Reliable Service

Fully Licensed

New South Wales

High Quality


Residential & Commercial

Time to waterproof the interior and/or exterior of your property? You’ve come to the right place! At Coastwide Waterproofing, we provide comprehensive waterproofing services for homes and businesses throughout Killarney Vale—from Eastern Road to Lucina Avenue. Whether you need the bathroom, balcony, swimming pool—or all three—waterproofed, we have the team, tools and quality products to ensure a long-lasting finish.

Ready to get started? Speak to our friendly waterproofers today on (02) 4306 3524 for a free quote.

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

External Wall Waterproofing — Internal Waterproofing in Killarney Vale, NSW

Our Waterproofing Products

Our trade warehouse, Coastwide Waterproofing Supplies, is home to a massive selection of waterproofing supplies from leading brands. These include:

Atika Product — Internal Waterproofing in Central Coast, NSW
And much more! Whether you need internal or external waterproofing, we’ve got the right products for your specific needs—whether for supply/installation or just supply only. Talk to our qualified waterproofers on (02) 4306 3524 to book. Our rates are highly competitive.

Products & Supplies

Need waterproofing products? We have a trade warehouse full of all the essentials, available for supply only or supply/installation throughout Killarney Vale.

Internal Waterproofing

Bathrooms, ensuites, laundries—we provide comprehensive internal waterproofing services for clients throughout Killarney Vale and surrounds.

External Waterproofing

Looking to get your external wet areas waterproofed? We are Killarney Vale’s external waterproofing experts, sealing decks, balconies, retaining walls and more.

Swimming Pools & Water Features

From swimming pools and water features to ponds and concrete water tanks—we waterproof various water-carrying structures for clients throughout Killarney Vale.


We are Killarney Vale’s commercial waterproofing experts, providing internal and external waterproofing solutions—all at a great price!

Brands We Source

Renowned brands means quality results. That’s why, at Coastwide Waterproofing, we use and supply quality waterproofing products from leading brands:


And more! Speak to our experienced waterproofers today on (02) 4306 3524 to discuss your unique requirements. We are Killarney Vale’s comprehensive waterproofing solution, servicing residential and commercial clients.

Frequently Asked Questions

The floor surrounding the toilet needs to be waterproofed; however, the walls and ceiling do not.

Waterproofing helps keep your home or business dry and reduces humidity; therefore, it is very necessary.

Below are just some of the advantages to waterproofing your home or business:

  • Prevents cracks on the surface of concrete
  • Easy application
  • Increases lifespan of concrete or tiled surface
  • Prevents mould & mildew from entering floors/walls
  • Increases property value
  • Reduces maintenance costs/clean up

Waterproofing a shower is critical, as it protects the underlying surface from water damage.