Geoshield Ltd are a UK based company that have been ripping off building sites and developers by trying to hold them ransom - for example they say they are providing surveying services to ground membranes - but they are not supplying quotations they will send a non trained operative to a site - who has received little training - they will then invoice and threaten to tell NHBC - that you are not compliant... These fraudsters must be stopped.... Trading standards must be informed.....