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Foundation waterproofing
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Foundation waterproofing for basements, retaining walls and substructures. Type A, B and C systems: sheet and liquid-applied membranes, cavity drain systems, bentonite liners, waterproof concrete admixtures, joint waterstops, drainage composites, protection boards, primers and sump pumps. Manage groundwater and hydrostatic pressure in new build and refurbishment.
Foundation waterproofing - helping you find the best solution for your project.

Delta PT 3mm mesh membrane for waterproofing
Delta PT 3mm is a high-density polyethylene (HDPE) low-profile studded membrane designed for damp and contaminated walls, or where fast reinstatement of wall finishes is required after chemical damp-proof injection: suitable for damp-proofing; provides key for plaster, renders or dab fix; controls damp, salts and isolates other wall contaminants
HydroCoat 107 Elastic 2K - Cementitious Flexible Waterproofing
Cementing Waterproof Strength: HydroCoat 107 Elastic 2K, a cementitious coating, ensures robust waterproofing and protection for concrete and masonry. Its spray application makes it perfect for large-scale projects, ideal for reservoirs, tunnels, water tanks, basements, podium decks, flat roofs, and balconies. Spray-Applied Precision: Tailored for
Koster Injection Gel G4 - acrylic waterproofing gel for masonry injection
Koster Injection Gel G4 is a low-viscosity, water-based acrylic gel made for curtain injection and sealing masonry against water ingress. Designed for waterproofing below-ground structures, it can be injected into fine pores and mortar joints, and is suitable for both new builds and repairs. Swells after curing to absorb extra water and is applied
Koster Repair Mortar NC - fibre-reinforced concrete repair / levelling mix
Koster Repair Mortar NC is a fibre-reinforced repair mortar and plaster made for structurally-relevant repair, touch-up of voids and levelling of concrete defects. Suitable for horizontal and vertical surfaces, it has high adhesion to mineral substrates, low shrinkage and strong chemical and mechanical resistance
DualProof - pre-applied PVC concrete waterproofing membrane for basements
Delta DualProof is a pre-applied, fully-bonded Type A waterproofing membrane made from a soft PVC layer co-extruded with a non-woven PP fleece. Designed for below-ground reinforced concrete structures, it forms a permanent mechanical bond with concrete to prevent water tracking and is suitable for both horizontal and vertical applications- PRODUCT
Delta Membrane Systems
Delta external drainage protection systems
Delta provides high-performance external drainage protection systems for external basement walls or to protect underlying waterproofing from backfill damage: geo-Drain Quattro - drainage and protection membrane; floraxx Top - external drainage membrane for green roofs; terraxx - protection and drainage system for horizontal application; NP Drain- PRODUCT
Delta Membrane Systems
Delta sealed structural waterproofing systems
Delta sealed systems are recommended for below ground waterproofing where soil is retained, for example, basements and vaults. Membrane selection depends on the required finish and flow rate if applicable. All membrane junctions, fixing points, service entries and other protrusions are sealed with the Delta Seal range of sealing products. Where
Delta ventilated damp proofing systems
Delta ventilated waterproofing systems are recommended for above ground situations or in areas where no free running water is expected, for example where external pavements have been built up. Ventilated system have an air gap at top and bottom. All joints and fixings are sealed. This method is a sympathetic solution in Heritage properties as a
Delta MS 20 - 20mm cavity drain membrane for floors and walls
Delta MS 20 is an HDPE, dimpled membrane with 20mm studs designed as a seepage layer for damp-proofing applications. Delta® MS 20 is used to waterproof floors, walls and vaulted ceilings where high drainage capacities are required in both above and below ground applications. Supplied in 2m x 20m rolls, DELTA® MS 20 can be applied as horizontal or
Delta PT - waterproof membranes for walls, vaults and basements
Delta PT is a high-performance polyethylene membrane used to insulate and isolate damp and contaminated walls, vaults, and basements. Delta PT is manufactured with 8mm extruded studs that create a continuous air gap. This results in a watertight, temperature and chemical-resistant seal. The 8mm stud design of Delta PT provides a continuous air gap- PRODUCT
Delta Membrane Systems
Koster Repair Mortar Plus - cement repair mortar for watertight patching
Koster Repair Mortar Plus is a fast setting, slightly expanding, watertight repair mortar made for use on mineral substrates. Suitable for internal and external repairs, it adheres well to old and new surfaces and can be used as a polymer-modified cement concrete mortar with Koster SB Bonding Emulsion
Delta Amphibia - 1.3mm pre/post-applied waterproof membrane
Delta Amphibia is a BBA-approved, fully bonded 1.3mm pre- and post-applied waterproofing membrane for below-ground and earth-retained structures. Made from a co-extruded, multi-layer system with a hydroreactive, self-sealing core, it is suitable for vertical and horizontal applications in new construction- PRODUCT
Delta Membrane Systems
MemTech Pro Titan Bond - poured concrete layer for waterproofing
MemTech Pro Titan Bond is a pre-applied waterproofing membrane comprising Memtech Pro Titan and a specialist bonded geotextile to provide a bonding layer for poured concrete specifically for waterproofing applications – Providing Type A Barrier Protection in accordance with BS 8102:2022. MemTech Pro Titan Bond hydrocarbon and VOC barrier offers a- PRODUCT
Delta Membrane Systems
Delta MS - high dimple density membranes
Delta MS high dimple density membranes are made of high density polyethylene. They have a high compressive strength and have more than 1800 dimples per metre squared for efficient pressure distribution and low point loads, even on perimeter insulation. Typical applications include sub-base coursing under concrete floor slabs, foundation wall- PRODUCT
Delta Membrane Systems
Koster Deuxan 2C - bitumen external tanking waterproofer
Koster Deuxan® 2C is a BBA approved primary waterproofer for external tanking. It is a robust, crack-bridging, 2-component, polymer-modified bitumen thick film sealant for waterproofing construction. Designed for the secure and permanent exterior waterproofing of basement walls, foundations, floorplates and for intermediate
Koster KSK SY 15 self adhesive bitumen membrane
Koster KSK SY 15 consists of a highly tear resistant, 2-layer cross- laminated, polyethylene foil with a plastic bitumen / rubber adhesive- and sealing-compound. It is cold applied and therefore no hot air or propane gas welding is required for application. Due to its high ductility, it can also be easily applied to difficult details. The sealing
Koster KB-Fix 5 - fast-setting waterproof and weatherproof mortar
Koster KB-Fix 5 is an extremely fast-setting, waterproof and weatherproof mortar made for quick repairs and installations in plaster, masonry and concrete. Designed for indoor and outdoor use, it is suitable for filling holes and cracks, anchoring fittings and sealing pipe penetrations
MemTech Pro Titan Tank - waterproof and ground gas membrane
MemTech’s Pro Titan Tank is a post applied waterproof and ground gas membrane which offers a safe solution for the protection of buildings, structures and occupiers against all levels of Hydrocarbons, VOCs, Methane, Carbon Dioxide and Radon gas ingress. MemTech Pro Titan Tank is a post applied waterproof and hydrocarbon barrier gas membrane. This- PRODUCT
Delta Membrane Systems
Newton Hydrobond - Type A external below ground waterproofing system
Newton HydroBond System is a Type A external waterproofing system for below-ground structures, made from a range of sheet and liquid-applied membranes. Designed to create a continuous barrier against water and ground gases, it can be pre-applied or post-applied to concrete slabs and walls. Suitable for use where protection from groundwater, radon- PRODUCT
Newton Waterproofing
NB Elastic Grey - cement waterproof coating for basements and wet rooms
NB Elastic Grey is a waterproof, elastic coating made for mineral surfaces, designed to resist wear, bridge cracks up to 2mm, and withstand dilute acids and alkalis. Suitable for new builds and repairs, it cures quickly and can be applied in seamless layers for durable protection in demanding environments
CDM 508 - 8mm cavity drain membrane for basements
Newton CDM 508 is a BBA-certified, high-quality, 8mm cavity drain waterproofing membrane. It is designed for use within the Newton CDM System for internally applied waterproofing that includes drainage and pumping systems. CDM 508 is suitable for waterproofing earth retained walls and vaulted soffits and floors. It is guaranteed against
Geo-Drain Quattro - drainage protection & waterproofing membrane
Unique drainage protection system/external waterproofing membrane that works with Type A External Waterproofing or can be used in civil engineering situations. Compact 4-layer membrane. For vertical and/or horizontal use- PRODUCT
Delta Membrane Systems
Corden EPS GRM waterproofing and gas resistant membrane
The Corden EPS GRM waterproofing and gas resistant membrane is self-adhesive. It provides a continuous waterproofing/tanking system for basements and substructures provided it is used in conjunction with Corden EPS Prime to ensure a suitable bond. The Corden EPS GRM waterproofing and gas resistant membrane is made from a polymer modified bitumen
Cavidrain Building - cavity drainage system
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A preformed cavity drainage system designed to relieve water penetration from basements and buried structures. It is designed for use on both new and existing structures. ABG Cavidrain Building system allows fast-track construction by eliminating wet trades and removing the installation of waterproofing from the critical path. The high-strength

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