Waterproofing Membranes In Sydney

Liquid & Sheet Waterproofing Membranes

At Unique Waterproofing Solutions, we work with top-quality waterproofing membranes to suit various applications for homes, businesses and industrial clients.


From installing rooftop membranes on homes in Sydney to large-scale commercial projects, we’ll apply the most appropriate waterproofing solution to keep your property leak-free.

Rooftop Sealed with Waterproofing Membrane — Unique Waterproofing Solutions in Castle Hill, NSW
Thin Layer of Waterproofing Membrane — Unique Waterproofing Solutions in Castle Hill, NSW

New Membrane Installations & Remedial Solutions

Waterproofing membranes are a thin, water-resistant material that’s laid over a surface to protect against water leaks and damage.


Available in a liquid form or as a pre-formed sheet, we typically use sheet membranes for larger, flat spaces including rooftops, subfloors and commercial properties.


We take all forms of water damage and ingress seriously as we understand the risks when left untreated. Unless rectified with the right waterproofing, your building’s infrastructure will be severely compromised.


We install waterproofing for new builds, renovations, extensions and for remedial repairs. So, when you’re looking to keep the water out, be sure to contact us at Unique Waterproofing Solutions. 

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What are Waterproofing Membranes Suitable For?

Australia is renowned for unstable weather and harsh climates. That’s why it’s crucial your home is protected against natural elements with quality waterproofing.


At Unique Waterproofing Solutions, we only use the finest sheet membranes and liquid materials to safeguard properties against water ingress. 


Operating throughout Castle Hill and Sydney, water-related issues typically account for approximately 80% of building defects.


High-quality waterproofing is paramount to preventing water ingress and structural damage. That’s why we offer industrial-strength waterproofing for rooftops, bathrooms, balconies, planter boxes, floors and commercial properties.

To organise a quote, don’t hesitate to speak to us today. Our friendly team will be happy to discuss your needs over the phone and schedule a time for an onsite inspection.


For your peace of mind, we also issue a compliance certificate upon completion, stating that our work meets Australian standards. 

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Frequently Asked Questions

  • What’s a waterproofing sheet membrane?

    A waterproof sheet membrane is a thin, pre-formed sheets that’s laid out and tightly fitted to a surface to protect against leaks, moisture retention and structural damage. At Unique Waterproofing Solutions, we mainly use sheet membranes for large, flat surfaces including commercial and residential rooftops. 

  • Why do you use a sheet membrane?

    Flat surfaces are more susceptible to water accumulation. Heavy rainfall is especially hazardous to flat rooftops and that’s why we use waterproofing sheet membranes to layer over the surface. 

  • Can I lay a waterproof sheet membrane myself?

    DIY waterproofing is not recommended and should always be carried out by a licensed professional. It is a legal requirement that waterproofing complies with Australian Building Codes & Standards. Upon completion of our waterproofing service, we’ll issue you with a compliance certificate as assurance.