Demolition and site clearance can also involve remedial work, which is the process of removing damaged or contaminated items for disposal or for decontamination. Commonly, it is the earth that can become contaminated, from oil spills, fuel, and other toxic substances. These then soak into the ground, potentially affecting large areas and damaging the plant and wildlife. We can excavate and remove affected material and either professionally dispose of it, or deliver it for cleaning.