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Concrete pipes with HDPE liner – Finding the source of water ingress

Leak sealing injections to concrete pipe with HDPE liner - Waterstop Solutions

Concrete pipes with HDPE liner – Finding the source of water ingress


Questions asked:

How would you find the source of the water ingress? Will the anchors have enough bite to hold the pressure, or withstand foam expansion?


Our answer:

To find the source of the leak in a concrete pipe with an HDPE liner, it requires a senior remedial waterproofing technician that is qualified and highly experienced in leak sealing techniques.

Our technicians find the leak source by controlled exploratory injections that will guide them to the leak source. Examples of leak sources could be

1. Bony Concrete

2. Concrete Cracks

3. Pipe Penetrations and/or

4. Pipe Segment Joints

Once the leak source has been identified, our technicians carry out targeted injections to the site to create a deep, long-lasting flexible waterproof seal against water ingress. By administering controlled injections, the foam expansion is managed to a level that does not interfere with the HDPE liner and its anchors.

Our specialist leak sealing technicians have yet to encounter a leak they cannot stop. They successfully treat these types of leaks on a weekly basis. Waterstop Solutions’ proprietary injection system exceeds the highest injection process and safety standards in Australia and internationally throughout Europe and the USA.

We continually review and reassess the methods and always strive to hone and improve our systems.


Confined Space Trained and Qualified Leak Sealing Specialists

Equipping each of our Technicians with Confined Space Training is a vital measure we take to protect our staff members from the hazards associated with working in such areas, where remedial waterproofing and concrete repair problems regularly arise for our customers.

Waterstop Solutions Pty Ltd is one of the very few waterproofing companies with specialist technicians in leak sealing and concrete repairs trained and certified to work in and around confined spaces. In the course of their work, our Technicians are regularly required to enter confined spaces. Such areas pose dangers because they are usually not designed as workspaces for people, often with poor ventilation which allows hazardous atmospheres to quickly develop.

At Waterstop Solutions, our primary duty is to provide our staff members with appropriate training that will protect them from risks to their health and safety at work. Our Technicians receive certified Confined Space training and as such, we lay claim to being one of the very few – if not only – companies in our industry to offer Confined Space Entry qualifications as part our service.


Leak sealing injections to concrete pipe with HDPE liner - Waterstop Solutions

Leak sealing injections to concrete pipe with HDPE liner - Waterstop Solutions


If you have any issues with moisture, seepage and/or high-flow active leaks in concrete structures, we would be happy to assist you. You are welcome to contact us with any questions that you may have.  

Brisbane office: (07) 3205 1899   


Sydney office: 02 9346 8308   

Email: [email protected]



Are you interested in finding out more about the various remedial building services we are providing?

Please click on the image below to download Waterstop Solutions Capability Statement

Waterstop Solutions Capability Statement

Waterstop Solutions Capability Statement is now available to download as PDF. (The image is clickable and opens up a link to our Capability Statement). 




Good maintenance begins with a proactive approach to maintain, keep, preserve and protect a building. 

Remember that seepage/water ingress into areas such as balconies, basements, concrete roofs, car parks and retaining walls, should not be ignored – call a remedial waterproofing professional today for an assessment to provide you with the best solution for your situation.

At Waterstop Solutions, we carry out a wide range of remedial works to concrete structures post-construction stage in Brisbane, Gold Coast, Sunshine Coast, Sydney and outlying areas in Queensland and New South Wales.

Equipped with major civil works experience, we can quickly determine the best approach to rectify all seepage and concrete deterioration issues.


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