Water ingress around pipe penetrations is a common cause of internal moisture damage in concrete walls and slabs. These leaks often occur when cracks develop during drilling or when original sealants degrade over time. Without proper waterproofing, these openings allow water to seep through, leading to serious issues like mould, corrosion, rot, and long-term structural damage.
At Stop & Seal, we specialise in advanced waterproofing solutions for concrete structures. Using SNSeal High-Pressure Injectable Sealant, we effectively seal voids around pipe penetrations, preventing water ingress and extending the life of your structure.
What Causes Water Ingress Around Pipe Penetrations?
When a pipe, service riser, electrical conduit, or air duct is installed in a building, it enters and exits through concrete walls or slabs. These penetrations may be sealed with a cement-based water plug or patch from the interior side of the building during initial construction as a temporary measure. Over time, the bond to the concrete usually fails, allowing water to seep around the pipe penetration.
Pipe penetrations are sometimes classified as “weak points”. If there is rising water due to hydrostatic pressure, the pipe penetrations may become the path of least resistance for water to enter or exit.
Dangers of Inadequate Waterproofing
If pipe penetrations are not properly waterproofed, it can lead to issues that can be harmful to both the slab and the pipe itself, not to mention the people inside.
The results of inadequate waterproofing can include:
Persistent leaks and water damage
Mould and mildew growth
Deterioration of concrete and surrounding materials
Corrosion of metal pipes or reinforcements
Increased repair and remediation costs
Signs of Water Ingress to Watch For
Early detection is key. See the images below to spot common signs of water ingress around pipe penetrations:
Common signs of water ingress around pipe penetrations include:
Water stains or damp patches near pipe entry points
Efflorescence (white mineral deposits on concrete)
Peeling paint or surface deterioration
A musty smell or visible mould growth
Water pooling after heavy rain
Our Waterproofing Process for Pipe Penetrations
At Stop & Seal, we follow a precise method to permanently stop leaks and water ingress around pipe penetrations no matter the location be it in a carpark, basement, pump room, tunnel, service cupboard/utility room/storage room.
These are the steps we take:
Step 1: Inspection of Area
Step 2: Remove Pipe Collars
We take off any collars to gain clear access to the junction between pipe and slab or wall.
Step 3: Apply Polyurethane Sealant
Step 4: Inject SNSeal High-Pressure Sealant
Our technicians inject SNSeal Injectable Sealant into injection points to seal the voids.
Step 5: Membrane Application*
Two coats of waterproofing membrane are applied around the penetration to reinforce the seal and protect the surface.
*In some cases it may be necessary to apply a membrane around the pipe penetrations for added protection.
Step 4: Inject SNSeal
Step 5: Membrane Application*
Waterproofing Services areas:
Australia-Wide, with Key Areas in Queensland, Melbourne & New South Wales
We provide waterproofing services Australia-wide, with our head office based on the Gold Coast. Our expert waterproofing solutions cover :
Queensland, including key service areas in Brisbane such as but not limited to Brisbane CBD, Fortitude Valley, Spring Hill, and West End, as well as Gold Coast areas like Southport, Surfers Paradise, Burleigh Heads, Coomera, Robina, and Tweed Heads. From injection waterproofing to membrane waterproofing, we offer a range of reliable solutions for both residential and commercial properties.
Victoria, we provide professional waterproofing services in Melbourne and surrounding areas, including but not limited to Melbourne CBD, Southbank, St Kilda, and Docklands. We also service other parts of Victoria, offering membrane waterproofing and other high-quality waterproofing solutions across regions such as Geelong, Werribee, Ballarat, and beyond. Our injection waterproofing methods ensure long-lasting protection for your property.
New South Wales, Our NSW Metro franchise is available to assist with waterproofing needs NSW Metro. From injection waterproofing to membrane waterproofing, we have the expertise to solve a wide range of waterproofing problems. You can reach our NSW Metro franchise directly at [email protected] or 0418 830 860.
Need Help With a Leaking Pipe Penetration?
If you’re dealing with leaks or suspect water ingress issues in your ceiling slab or concrete surrounding a pipe peno in a basement or any location, we offer expert waterproofing and repair services exacly for this. Don’t let water damage compromise your property—contact us today to schedule an inspection!