Concrete looks solid, but it is full of microscopic pores and capillaries that let water travel through. Over time, water carries salts, corrodes reinforcement and causes spalling — the cracking and breaking away of the concrete surface.
We waterproof and protect concrete slabs, walls, retaining structures, driveways and car parks with systems matched to the exposure and the type of water problem.
Signs you need concrete waterproofing
- Cracks that let water through during rain
- Spalling or flaking concrete surfaces
- Rust stains from reinforcement
- White efflorescence deposits
- Damp slabs under floor coverings
- Leaking construction or expansion joints
Concrete waterproofing solutions
- Crystalline waterproofing — penetrates and blocks capillaries within the concrete itself
- Crack injection — polyurethane for active leaks, epoxy where structural bonding is specified by an engineer
- Penetrating silane/siloxane sealers — invisible water-repellent protection for exposed concrete and masonry
- Joint sealing — flexible sealants and joint systems for movement and expansion joints
- Protective and trafficable coatings — for car parks, plant rooms and walkways
Concrete repair before waterproofing
Waterproofing over damaged concrete only hides the problem. Where reinforcement is corroding, we break out loose concrete, treat the steel and reinstate the section with repair mortars before waterproofing. Significant structural defects are referred to a structural engineer.
Our concrete waterproofing process
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1
Diagnosis
We assess cracks, joints, moisture and any corrosion or spalling.
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2
Repairs
Loose concrete is removed, steel treated and sections reinstated.
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3
Crack & joint treatment
Injection and sealants stop leaks at cracks and joints.
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4
Waterproofing
Crystalline, sealer or membrane systems are applied.
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5
Review
We check performance after rain and provide documentation.
Why choose us for concrete waterproofing
Solutions for active leaks and prevention
Crack and joint injection
Invisible penetrating sealers
Concrete repair expertise
Suitable for residential and commercial
Written scope and warranty
