Subsidence Treatment, Fixing Subsidence - Uretek Skip to main content


The principle of our solution involves injecting one of our expanding geo-polymer materials under your property, the material is pumped into the soils as a liquid and expands under the ground. As the geo-polymer expands it fills the voids in the soils, forces out any water and compacts the soil - this results in a solid stable base under your property's foundations or floor. 

As the material expands in the ground it will follow the path of least resistance until it can not migrate any further; at this point the expansive force of the material begins to push up onto the foundations of your property. We can see when this happens using our laser monitors, which will pick up 0.25mm of movement above the injection point. If we are stabilising the ground we will stop the process at this injection point and move on to the next - we will inject at points at around 1.5m apart to ensure the material is equally spread under the problem area of your property. If we are lifting your floor, we continue injecting material at the injection point until the floor is lifted to the required level.

The material we use does not degrade, it is a permanent solution comparable to concrete, but the process of introducing our geo-polymer to the affected area is faster and cleaner. As a comparison, cement grouting requires heavy machinery and your property becomes a full worksite, as with screwpillars, or underpinning, which requires the excavation of foundation soil. With Uretek we simply drill small holes and inject our material.

Using geo-polymer as a solution to subsidence is the most conveinient method and in most cases the preffered option; other methods, such as underpinning delivered by traditional building contractors, are becoming dated as modern technology evolves.

Please contact us for further information or a site visit.

Treating subsidence benefits:

  • Building or structure can be used for its intended purpose extending its useful life
  • Structural and user safety will be improved
  • Building structures, the roof, superstructure, doors and windows, work as intended
  • Value of the building is maintained, and possibly even increased
  • The earlier the remediation is done, the less damage will be caused by subsidence resulting in direct cost saving