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Void Filling

If you have discovered a void underneath your property and are concerned that it might lead to subsidence and collapse, then you must act quickly to get it sorted. Luckily, URETEK has the quick and simple solution to all of your void problems.

Voids are structural weak points and can lead to dangerous collapse of foundations. URETEK solutions can be used to fill any size of void. We want to save you, your home or your business from disaster. Typical applications include pipelines and tunnels, but the solution is suitable for almost any void.

Versatile solution

We specialise in the application of a range of materials to fill voids, no matter the size or location. URETEK’s solution is known for its effectiveness and versatility.

Our void filling process involves utilising a specific geo-polymer or a combination or URETEK geo-polymer and a lightweight clay aggregate. The filling is achieved by using lightweight materials that do not impart significant load to the site, so our void filling solution will not lead to any negative side effects on the overall stability of the site.

Our solutions are quick to complete, all of our materials are inert and can be easily excavated, so if at a later date the void needs to be accessed, the geo-polymer can be removed with ease. Where required, we also provide a specialist structural grade void fill solution that can be applied directly or through an injection small hole, providing a non-disruptive solution. This means that your property won’t have to become a loud, obstructive construction site.

The versatility of our solution means that no matter how hard to reach the area is, we’ll be able to pump resin into it with very little disruption to you. We can pump it up to 70m, so our equipment does not have to be directly on the site, giving us even more options for solutions.

Proper planning

The URETEK team will begin planning the job straight away. We will work closely with you and together we will come up with a schedule that is convenient for you, your family or your business. Our staff have worked on countless void-filling jobs, so they have the expertise and experience to adapt and tailor the solution to you and your building.


  • Expanded lightweight geo-polymer
  • Produced on site from a liquid base using minimal plant and equipment
  • Can be pumped over 70 metres
  • Neat solution designed to be as non-disruptive as possible

Our solution in action

Take a look at this very short video (right) to see our geo-polymer resin in action. See how small the injection hole is and how quickly the solution begins to work. In only a few seconds the resin is expanding upwards to fill the void in a uniform fashion. It perfectly illustrates the lightweight material expansion that we have used to strengthen and stabilise foundations all across the world. Why not get in touch with us today on 0800 084 3503 or use our online contact form. Video recorded at the URETEK research facility.

Read about our work filling pipes and sewers on Lewisham Gateway.

Contact us now to discuss your project; call 0800 084 3503 or use our contact form.