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Waterproofing
Our waterproofing building supplies protect structures from water ingress, damp, and moisture damage. Suitable for internal and external use, they include membranes, slurries, sealants, tapes, and primers for lasting protection. Ideal for roofs, basements, balconies, and more, they work on concrete, brick, timber, and metal. These solutions reduce water penetration, support damp proofing, and preserve structural integrity.
Subcategories
- Exterior Wall Waterproofing
- Injection Waterproofing
- Internal Tanking
- Masonry Impregnation
- Membranes, Waterstops and Reinforcement
- Structures Below Ground
- Waterproofing Accessories
- Waterproofing Jointing Tapes
- Waterproofing Joints
- Waterproofing Membranes
- Waterproofing Mortar
- Waterproofing Primers and Pre-Treatments
- Waterproofing Repair
- Waterproofing Waterstops
- Pre-Bagged Waterproofing
- Waterproofing Adhesives
- Waterproofing Admixtures
Sika Damp-proofing Slurry
Sika Damp-proofing Slurry is a 1-component damp proofing and waterproofing mortar for the damp-proofing of underground buildings or waterproof lining of water sources. Features and Benefits Easy to use and apply BBA approved Just add water Brush, trowel or spray applied Fast mixing Good adhesion Excellent workability Protects...
SikaBond Waterproof PVA
SikaBond Waterproof PVA is a waterproof vinyl acetate polymer especially formulated for exterior use as an adhesive and sealer. Features and Benefits Waterproof formula Internal/external use Primer, sealer and cement admixture Suitable for brickwork, mortar, render, screed and plaster Easy to use and unlike normal PVA it will not...
Wethertex WB1 WeatherBLOCKER
Long-lasting masonry protection against damp, available in clear and white. Suitable for use on brick, stone, concrete, and renders. Utilises advanced nano-technology for deep penetration and up to 25 years of protection. UV resistant, ensuring durability and sustained performance. Easy application with brush, roller, or airless spray....
Ronacrete Ronafix Universal
Admixture for thin bonded, floating and unbonded screeds and toppings. Applications include: Floor screeds, concrete repair Waterproof renders Slurry coats/levelling and protective Heavy-duty floor toppings Protection of steel reinforcement Bedding and bonding mortars Tanking and waterproofing Conforms to BS EN 934-2 Open to...
Illbruck PU230 Rapid Adhesive
PU adhesive paste for wood which cures rapidly to form an exceptionally strong water resistant bond. It is ideal for use in all types of joinery, construction and repair applications where a permanent bond is required. Waterproof adhesive suitable for external use - meets the requirements of EN 204 (D4) Forms an exceptionally high bond...
Sika BentoShield MAX LM
Sika BentoShield MAX LM is a polymer modified bentonite waterproofing system. Mechanically bonded, contaminate resistant, self healing membrane for basement and below ground structures. Resistant to contaminated soils, forming an automatic mechanical bond to freshly poured concrete it virtually eliminates the possibility of water movement...
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Waterproofing Products – Membranes, Coatings & Systems for Roofs, Basements & Building Protection
Waterproofing protects buildings from moisture, damp, and mould. It keeps spaces dry and safe above and below ground with targeted solutions for each area.
From roof membranes to basement coatings, systems form flexible or rigid barriers against rain, groundwater, and run-off. Many work on damp surfaces and resist UV.
Compatible with concrete, masonry, render, wood, and metal, the range includes primers, waterproof paint, sealants, fleece, drainage, and tapes for full protection.
Waterproofing FAQs
What is the difference between tanking and waterproofing?
Tanking is a specific type of waterproofing where a full barrier is applied directly to internal surfaces - typically in basements or retaining walls - to block water ingress. General waterproofing includes a wider variety of systems such as membranes, sealants, and impregnators used on roofs, walls, and external areas to prevent water from penetrating the structure in the first place.
Can waterproofing products be applied to damp or wet surfaces?
Some systems are designed for application to damp substrates, especially cementitious slurries and certain water-reactive resins. However, for most liquid membranes and surface coatings, the substrate should be dry to ensure proper adhesion and performance. Always check product-specific guidance before applying.
Are waterproofing membranes permanent or do they require maintenance?
Most high-quality waterproofing systems are long-lasting but do benefit from periodic inspection, especially in exposed areas. Traffic, weathering, and structural movement can affect lifespan. Recoating or reinforcement may be required over time depending on system type and location.
Can I apply waterproofing products myself or do I need a professional?
Many waterproofing products are suitable for experienced DIYers, particularly liquid membranes, tanking slurries, and impregnators. That said, complex installations - especially below ground or involving injection systems - are often best handled by professionals. Always follow the product instructions and safety guidance for the best results.