Voids and sinkholes which need filling can occur both during and after the construction of your home or swimming pool.

Voids are caused by natural events such as heavy rain, floods, general erosion or the ground itself can collapse into a pre-existing underground void. 

Voids can also occur due to unnatural reasons such as a water pipe bursting, downpipes leaking over a longer period of time or mine-subsidence related settlement.

Such voids need to be filled quickly, cost-effectively and material selection needs to provide adequate strength to support the structural loads.

Raise and Revel can provide a range of solutions including polyurethane resin injection void filling as well as cementitious grouting solutions. 

Driveway defects often involve concrete driveway slabs that have sunken or become unlevel, creating a ‘lip’ between slabs. These can be both a dangerous trip hazard and if not fixed, can cause the driveway to become structurally damaged beyond repair.  

Concrete driveway failures are most often caused by poorly compacted fill during construction or dynamic vehicular loadings over a period of time, causing the slabs to subside.

Another type of failure can also be caused by tree roots growing under the concrete driveway and allowing unwanted movement. Or broken downpipes causing the subgrade to be washed out, allowing the concrete driveway to sink.

These types of concrete driveway relevling can easily and cost-effectively be undertaken by Raise and Relevel using our polyurethane resin injection methods. Concrete driveway releveling can often be completed in half a day for a fraction of the cost of replacing the concrete slab without downtime.