Soil testing can be an important factor in determining whether the cause of building subsidence is an adjacent tree. Trees growing in sandy soils (which are formed of relatively large particles) do not tend to cause subsidence. However, trees growing in clay soils (which are formed from very much smaller particles) can cause soil shrinkage and heave. This can damage buildings and require remedial works to the tree (e.g. pollarding or removal) or to the building (e.g. underpinning the foundations).
PJC Consultancy can take soil samples from appropriate locations at a site. Laboratory soil testing then provides an accurate overview of type and composition.
Should tree roots be discovered near to buildings these can also be laboratory tested for identification, even if only present in small quantities, which may be necessary as proof should the tree be located on third party land.
To find out more about our soil testing services, please call us on 01323 768155
or use our enquiry form.