We fix leaking buildings & concrete structures in QLD and NSW!

Experiencing a leak right now? Send us your video or photo of the leak and we will respond as soon as possible




  • Concrete Leak Sealing Injections & Concrete Crack Injections,
  • Concrete Repairs
  • Remedial Waterproofing Solutions


Delivering our tailored solutions to the residential, commercial, industrial and civil built environment.
When choosing Waterstop Solutions®, you will benefit from major civil works experience and Waterstop Solutions’ unique process systems of remedial techniques (patent pending)  –  developed by our Directors Chris Anderson and Harold Du Toit. By using the latest proven technology for remedial applications in the built environment, we ensure that we are providing a high success rate in a cost-effective way to our clients. Quality – delivered with integrity and care is peace of mind for all parties.

Types of concrete structures we often leak seal and repair:

Basements, balconies, car parks, concrete rooftops, concrete slabs, concrete swimming pools, concrete pipe joints, hardstands, joints (cold joints, contiguous pile walls, industrial floor joints, infill slabs, floor-wall, wall-ceiling), lift pits, lift shafts, manholes, pipe and service penetrations, planter boxes, retaining walls, water infrastructure (conduits, reservoirs, dams, wastewater treatment plants, water treatment plants, water retaining tanks).


Our Services: Inspection  Concrete Crack Injection   Remedial Waterproofing   Leak Sealing   Rising Damp   Protective Coatings    Ground Improvement   Joint Sealing   Concrete Repair 

This is a job that shows some of Waterstop Solutions’ diversity in leak sealing injections, remedial waterproofing and concrete defect repairs; Spalling concrete repair of a slab edge and leak sealing injections of a wall-floor joint, pipe penetrations, a slab crack and a cold joint over a dividing wall in a Brisbane garage.


Everyone’s safety is our priority – Always!

We’re here to help.  All our services will continue as planned while following all government recommendations to protect our staff, clients and suppliers. Due to the evolving situation with Covid-19, we have taken a number of steps to ensure the health and safety of all our clients and staff members. We will continue to monitor and implement the most recent government advice while maintaining contact with our entire workforce to make sure there are no changes to their health. Everyone at Waterstop Solutions has been given detailed instructions on how to follow the Government guidelines of health, hygiene and social distancing practices to help prevent contracting and spreading the COVID-19 virus.



If you have any questions regarding water ingress/seepage and/or concrete deterioration/concrete cancer, we would love to hear from you. We have offices located in Brisbane and Sydney with our services offered throughout QLD and NSW.



Benefit from Major Civil Works Experience

Established by Harold Du Toit in 2009 to service the construction of Clem 7 tunnel in Brisbane, the team at Waterstop Solutions has since completed over 6000 projects across Queensland and New South Wales – 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, M5 Tunnel,

“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, concrete crack injections and concrete repair solutions to Brisbane, Gold Coast, Sunshine Coast in South-East QLD and areas in and around Sydney NSW.

Waterstop Solutions quality system, policy and procedures are compliant across Australia to AS/NZS ISO 9001, ISO 4801, ISO 14001.
Cm3 Prequalified

Waterstop Solutions is Cm3 prequalified for our OHS/WHS capabilities and practices.
Waterstop Solutions is Cm3 prequalified for our OHS/WHS capabilities and practices.


  • QBCC Licence Classes: Concreting and waterproofing. Licence number: 1162603
  • NSW Builders Licence number: 347295C
  • Certificate III in waterproofing
  • Working in confined space certified
  • Elevated Work Platform (EWP) and High-Risk Work (HRW) qualified






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