Specialist PU Injection Grouting Contractor in India
Many concrete structures develop vulnerable points around cracks, construction joints, and service penetrations. Left unattended, these points can allow water to move through the structure, corrode reinforcement, and cause more serious deterioration over time.
Fix and Fine is a specialist PU injection grouting contractor operating across India. We inject polyurethane resin into cracks, joints, and voids under controlled pressure to help form a watertight seal from the inside. No excavation, no hacking, no waiting for the monsoon to pass before work can begin.
ISO 9001:2015 certified and backed by 17 years of field experience across 500+ completed projects, we resolve water ingress in basements, foundations, water tanks, and infrastructure where other methods have already been attempted and fallen short.
What Does a PU Injection Grouting Contractor Do?
Keeping water out during construction is a design task. Getting water out of a structure that is already finished, occupied, and actively leaking is a completely different body of work.
PU injection grouting addresses the problem from the inside. Ports are drilled and installed at calculated intervals along the affected crack or joint. Polyurethane resin is then pumped in under pressure. Depending on the resin system, the material reacts with moisture or fills the affected void before curing to form a flexible or rigid seal.
Product selection matters as much as the application itself. Hydrophilic PU foam suits actively flowing leaks, while hydrophobic resin suits damp or dry conditions. Rigid polyurethane systems can be used where crack stabilisation requirements call for them. Fix and Fine specifies the correct system for each individual condition on site before any resin is mixed. That decision is what the long-term outcome depends on.
Dealing with water ingress anywhere in India? Call us now.Our PU Injection Grouting Services
When water is actively flowing through a crack, many waterproofing products may not bond effectively to the wet surface. Hydrophilic PU foam is designed for suitable active water leaks. When injected into the affected area, it reacts with moisture and expands to help fill the crack and control water ingress.
Construction joints in basement walls, floor-to-wall junctions, service penetrations, and sump pits are the most common points of water ingress in Indian buildings. We treat these elements from the interior face using PU resin systems that help seal water ingress without excavating the external face of the structure.
Stabilised, non-moving cracks in walls, columns, retaining structures, and slabs create a direct path for moisture, carbonation, and chlorides to reach the reinforcement over time. We seal suitable non-moving cracks using appropriate polyurethane or, where structural repair requirements call for it, epoxy injection. The selected system depends on the crack condition and engineering requirements.
Underground water tanks, overhead reservoirs, sewage treatment plants, culverts, and metro tunnel linings all present distinct grouting requirements. Fix and Fine carries out high-pressure PU injection on civil and infrastructure assets across India where standard products and application sequences are not adequate for the conditions on site.
Why the Application Matters as Much as the Product
Injection grouting looks uncomplicated from the outside. Drill, fit a port, connect a pump. In practice, every variable on site changes what needs to happen next.
Port spacing, drilling angle, injection sequence, working pressure, and dwell time all change depending on crack width, water flow rate, concrete density, and temperature. Use the wrong resin for the conditions and it cures before it bonds. Incorrect injection pressure can reduce grout penetration or cause the material to travel away from the intended crack path. These are not minor errors. They mean the repair fails and the work has to be done again.
Fix and Fine has been resolving waterproofing failures across India for 17 years. The range of conditions our teams have worked in covers hairline cracks in exposed retaining walls through to high-volume groundwater infiltration in live underground structures.
