Advanced Polyurethane Injection Solutions from Water Proof Specialist (PVT) LTD
Water Proof Specialist (PVT) LTD provides professional polyurethane (PU) injection services delivering permanent solutions for water leaks, structural cracks, and void filling throughout Sri Lanka. Our advanced PU injection technology stops active water leaks instantly, seals concrete cracks permanently, fills voids and cavities effectively, and provides flexible, long-lasting waterproofing protection.
PU injection is the most effective method for stopping active water infiltration through cracks, joints, and porous concrete. Unlike surface treatments that only address symptoms, PU injection penetrates deep into substrates, expanding to fill voids completely and creating permanent waterproof barriers that accommodate structural movement.
Instant Results
20+ Year Protection
No Excavation
Works Under Pressure
Immediate stoppage of water infiltration through cracks, joints, and construction defects even under high water pressure.
Permanent sealing of concrete cracks in foundations, basements, walls, slabs, and structural elements.
Complete basement protection against groundwater infiltration and hydrostatic pressure from exterior.
Specialized injection for tunnels, underground structures, and deep excavations.
Permanent waterproofing of expansion joints, construction joints, and cold joints in concrete structures.
Filling cavities, voids, and loose soil under slabs, foundations, and pavements.
Locating and permanently sealing leaks in pools without draining or demolition.
Stopping water seepage through retaining walls and preventing soil saturation.
Identifying leak sources, crack patterns, and water infiltration points
Cleaning injection areas and installing injection ports at strategic locations
Mixing polyurethane resin to specifications for conditions and application
Injecting PU resin under controlled pressure ensuring complete penetration
PU expands up to 20x volume, filling all voids and creating waterproof barrier
Removing injection ports and finishing surfaces professionally
Testing sealed areas to confirm complete water stoppage and cure
Reacts with water, expands significantly, ideal for active leaks and moving water
Does not react with water, forms dense waterproof barrier
Combines properties of both for optimal performance
Stops active water leaks immediately, even under pressure
Creates durable waterproof barriers lasting 20+ years
Interior injection eliminates costly exterior digging
Quick application with immediate return to service
Accommodates structural movement without failure
Significantly cheaper than traditional waterproofing methods
Non-toxic, safe for potable water contact
Effective even with active water flow
Suitable for concrete, masonry, rock, and soil
Proven durability in Sri Lankan tropical conditions
Specialized training in advanced PU injection techniques and equipment operation
International-grade polyurethane systems from Sika, BASF, De Neef
Professional injection pumps and monitoring systems ensuring precise application
Hundreds of successful PU injection projects across Sri Lanka
No-obligation leak investigation and solution recommendation
Transparent quotations with excellent value for permanent solutions
Rapid response for urgent leak situations requiring immediate attention
011-276-8795
info@waterproofspecialist.lk
Mon-Fri: 8AM-6PM | Sat: 8AM-4PM
Complete coverage across Sri Lanka: Colombo, Gampaha, Kalutara, Kandy, Galle, Matara, Negombo, Kurunegala, Anuradhapura, Jaffna, Trincomalee, Batticaloa, and all districts.
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