Knowledge · Injection

Lifting a subsided industrial floor without shutting down your operation

Level differences at the joints, rocking slabs, a hollow sound under the forklift: a subsided floor costs money and is dangerous. With expanding resin we bring the floor back to level zone by zone, while the rest of the building keeps running.

Report your cracks Subsidence survey

Concrete warehouse floor lifted after resin injection

Do you recognise this?

  • Level differences at the joints that forklifts and pallet trucks bump over
  • Slabs that rock or sound hollow
  • Cracks in the floor along racking or heavy machines
  • A floor on poorly compacted fill
  • Water that stays in the lowest zones

How it works

We drill 12 mm holes in the floor every 1 to 2 m and inject an expanding polyurethane resin. Within seconds the resin expands to about 30 times its volume, fills the voids under the slab, compacts the subgrade and lifts the floor under continuous laser control. We stop as soon as the floor is level.

Why not break it out and pour again?

Resin injectionReplacing the floor
DowntimeZone by zone, usable after ± 15 minWeeks
Demolition and removalNone, only small drill holesFull demolition
Racking and machinesUsually stay in placeHave to be moved
SubgradeCompacted at the same timeUnchanged without extra measures

Our injection unit stays outside

Only the hoses come in. Disruption in the building stays minimal and your operation carries on around the zone.

With serious damage, have a structural engineer assess the situation. Soiltek is a specialist contractor: we record, measure, propose a technique and carry out the repair, in consultation with your engineer.

What can we do?

Deep Lift

Expanding resin strengthens the ground under the foundation, without digging.

Slab Lift

Sunken concrete floors back to level.

Frequently asked questions

Can the warehouse stay open?

Yes. We work zone by zone. A treated zone is usable again after about 15 minutes, because the resin then has 90% of its final strength.

How far can a floor be lifted?

Usually a few millimetres to a few centimetres. We stop as soon as the floor is level.

Does the resin load the ground?

Hardly: the cured resin weighs about 85 kg/m³, far less than soil or concrete.

Not sure?

Send us a few photos of the cracks and the surroundings of your house. We will look, with no obligation, at what may be going on.

Report your cracks

Read also: Strengthening the foundation before you renovate or build up · In which soils does resin injection work? · Is injection resin safe for the soil and groundwater?