The house next door is being renovated. Today a heavy roof ridge tile landed in my garden. If it had hit me it would have at best caused serious injury and at worst killed me. It has gouged out some of the plaster on the house wall. The owners of the property have moved out for the renovation and I do not have a contact number for them. Any suggestions please for who I could contact about this? I live on my own and don't feel confident to approach the builders directly.