PU Injection Grouting
Services in kolkata

Rs. 2000-3000 /Nozzle

*conditions apply
(depends on area, surface and other conditions)

A seamless solution for crack filling and waterproofing - PU injection grouting.

Process Of PU Injection Grouting


Drilling and inserting of injection ports


Protection of work areas


Grouting using a high pressure grouting machine


Removal of injection ports & sealing up


Ensure no leakage

Advantages & disadvantages of PU Injection Grouting


  • High strength and durability
  • Resistant to moisture and chemicals
  • Can be used on horizontal and vertical surfaces
  • Non-intrusive and does not require excavation
  • Improves the structural integrity


  • Expensive compared to other methods
  • Requires professional installation
  • May not be effective for large voids and cracks
  • Can take longer to cure than other methods
  • May not be suitable for certain types of structures
Before cement During cement

What Is PU Injection Grouting & Why

PU injection grouting is a popular repair method used to fix concrete structures that have cracks, voids, or leaks. PU injection grouting is an important repair method for concrete structures that can help improve their strength, durability, and overall lifespan. By filling cracks and voids and providing structural reinforcement, PU injection grouting can help prevent further damage and keep concrete structures in good condition for years to come.

  • PU injection grouting involves injecting polyurethane resin into concrete cracks and voids to fill them up and provide structural reinforcement.
  • PU injection grouting is a cost-effective and non-intrusive repair method that can help extend the lifespan of concrete structures.
  • PU injection grouting can be used to repair a wide range of structures, including buildings, bridges, tunnels, and dams.
  • PU injection grouting can also be used to stop leaks in concrete structures, such as basement walls or swimming pools.
  • PU injection grouting can improve the overall strength and durability of concrete structures, making them more resistant to weathering, corrosion, and other forms of damage./li>
  • PU injection grouting is a quick and efficient repair method that can often be completed in a matter of hours or days, depending on the extent of the damage.
  • PU injection grouting is environmentally friendly and does not release harmful chemicals or pollutants into the air or water.

Common Mistakes In PU Injection Grouting


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Frequently Ask Questions

PU injection grouting is a popular method for repairing and strengthening concrete structures. Some benefits of this technique include:

  • Increased durability: PU injection grouting can restore the structural integrity of damaged concrete, preventing further deterioration and extending the lifespan of the structure.
  • Waterproofing: PU injection grouting can fill cracks and voids in concrete, creating a waterproof barrier that can prevent water infiltration and damage.
  • Cost-effective: PU injection grouting is a cost-effective solution for repairing concrete, as it can be used to target specific areas of damage without the need for extensive demolition or replacement.
  • Minimal disruption: The injection process is quick and minimally invasive, allowing repairs to be completed with minimal disruption to surrounding areas.
  • Improved aesthetics: PU injection grouting can be used to fill cracks and voids in concrete, improving its appearance and restoring its original finish.

PU injection grouting is a versatile and effective technique for repairing and strengthening concrete structures, providing long-lasting benefits at a relatively low cost.

PU (polyurethane) injection grouting is a common technique used in the repair of concrete structures. It involves injecting a liquid polymer into cracks and voids within the concrete to fill and seal them. Some types of structures that can benefit from PU injection grouting:

  • Buildings: Cracks in the walls, floors, and foundations of buildings can be repaired using PU injection grouting.
  • Bridges: The joints and cracks in bridge decks, piers, and abutments can be sealed using this technique.
  • Tunnels: PU injection grouting can be used to repair cracks and leaks in tunnel linings.
  • Dams: The concrete structure of dams can develop cracks and voids over time, which can be repaired using PU injection grouting.
  • Parking garages: The concrete decks and ramps of parking garages can be repaired using PU injection grouting to prevent water infiltration and increase the durability of the structure.

PU injection grouting is a versatile technique that can be used to repair a wide range of concrete structures, including buildings, bridges, tunnels, dams, and parking garages.

PU injection grouting is a popular method for repairing concrete structures.

  • Identify the problem area: First, the damaged or cracked area in the concrete is identified.
  • Drill holes: Small holes are drilled into the concrete, typically spaced a few inches apart, to allow for the injection of the grout.
  • Inject the grout: A specially formulated polyurethane grout is injected into the holes using a high-pressure pump. The grout fills any voids or gaps in the concrete, effectively repairing the structure.
  • Monitor the repair: Once the grout has been injected, the repair area should be monitored for any further movement or cracking
  • Finish the repair: After the grout has cured, any excess material can be removed and the surface can be finished to match the surrounding concrete.

PU injection grouting is a versatile and effective method for repairing concrete structures. It can be used on a variety of surfaces, including walls, floors, and foundations, and can help extend the life of the structure by preventing further damage.

The cost of PU injection grouting for concrete repair in the Indian market can vary depending on several factors, but it is important to choose a reliable and experienced contractor to ensure quality repairs that last.

  • Size of the area to be repaired: The larger the area to be repaired, the higher the cost.
  • Depth of the damage: The deeper the damage, the more PU injection grouting material required, and the higher the cost.
  • Accessibility of the site: Difficult-to-access locations increase the cost due to additional labour and equipment required.
  • Severity of the damage: The more severe the damage, the higher the cost due to more complex repair procedures and more materials required.
  • Quality of the PU injection grouting material: The higher the quality of the material, the higher the cost.
  • Type of injection grouting: Different types of PU injection grouting methods are available, each with different costs.
  • Contractor experience and reputation: Experienced and reputable contractors may charge higher fees for their services.
  • Additional costs: Additional costs such as site preparation, disposal of debris, and site clean-up may increase the overall cost.

Our team of skilled professionals is dedicated to providing top-notch grouting services that will leave your home or office looking great. We use high-quality materials and advanced techniques to ensure that the grouting is done right the first time. With AapkaPainter, you can rest assured that you are getting the best service possible. We also offer competitive pricing and excellent customer service, so you can feel confident that you are getting the best value for your money. So why wait? Contact AapkaPainter today and get started on your next grouting project!