Positive Side & Negative Side Waterproofing: What is the Difference?
It can be tricky to know when negative side or positive side waterproofing is required to fix water ingress. Read more about it here.
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At Waterstop Solutions, we specialise in fixing leaking buildings and concrete defects across Queensland and New South Wales.
Drawing from our substantial tunnel works experience across QLD and NSW, we bring a wide range of specialist remedial solutions to:
Since 2009, we have built a reputation for delivering trusted solutions that restore buildings’ resilience against rain, hydrostatic pressure, and structural damage. When complex issues arise, we know how to design tailored solutions to safeguard your assets, ensuring long-term durability and peace of mind — so you can focus on what matters most.
We understand how stressful building deterioration and water damage can be, as they can trigger a ripple effect of costly repairs, health risks, and safety concerns. Whether you are dealing with water seeping into your basement, leaks in a concrete rooftop, sinking hardstands, or cracked and spalling concrete, our team is here to offer expert guidance and effective, long-lasting repairs.
When you choose Waterstop Solutions®, you benefit from our extensive experience in major civil works and our innovative, patent-pending remedial techniques – developed by our Directors Chris Anderson and Harold Du Toit. By leveraging the latest proven technologies in remedial applications, we deliver high success rates while maintaining cost-efficiency for our clients. Our commitment to quality work, delivered with integrity and care, provides peace of mind for all parties.
Waterstop Solutions NSW proudly holds an open builder’s licence and the NSW Registered Design and Building Practitioners Licence, enabling us to undertake remedial works on strata buildings, including Class 2 buildings, in compliance with the latest New South Wales regulations.
As a member of the Master Builders Association NSW, we are committed to delivering exceptional standards in remedial building and waterproofing repairs, solidifying our reputation as a trusted partner in the industry.
Established by Harold Du Toit in 2009 to service the construction of Clem 7 tunnel in Brisbane, the teams at Waterstop Solutions have since completed tens of thousands of projects across Queensland and New South Wales. From all the tunnels in Brisbane to water treatment infrastructure, bridges, industrial sites, heritage buildings, hospitals, commercial and residential buildings in both QLD and NSW– we bring Waterstop Solutions’ major civil works experience to many sectors in the built environment! – Notably:
Parliament House, Legacy Way Tunnel, Yungaba House, The Gabba, Jewel Residences, Gotham Tower, Airport Link Tunnel, Alex Perry Hotel and Apartments, Cathedral of St Stephen, QLD Children’s Hospital, Australian Federal Police HQ, Taronga Zoo, Steyne Hotel, M5Tunnel, “The Toaster” (Bennelong Apartments) and Sydney Harbour Bridge.
With a solid reputation of integrity built upon years of reliable service in the building and construction industry, at Waterstop Solutions we pride ourselves on using industry-leading technologies to deliver superior remedial waterproofing, leak sealing, rising damp treatment, concrete crack injections, joint sealing, subsoil drainage, slab jacking and concrete repair solutions to Brisbane, Gold Coast, Sunshine Coast in South-East QLD and areas in and around Sydney NSW.
We specialise in sealing and treating leaks in the following concrete structures:
We Recommend Other Reputable Trades For:
For buildings under 7 years old, we recommend reaching out to QBCC and contacting your builder.
It can be tricky to know when negative side or positive side waterproofing is required to fix water ingress. Read more about it here.
For Strata managers and new homeowners: If your building and pest report flags rising damp, Waterstop Solutions offers expert damp proofing to protect your property and ensure long-lasting safety.
Waterstop Solutions’ quality system, policies, and procedures are compliant with AS/NZS ISO 9001, ISO 4801, and ISO 14001 across Australia.
Cm3 Prequalified
Waterstop Solutions is Cm3 prequalified for our OHS/WHS capabilities and practices.
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