Hi. Next door has had some building work which required scaffolding on my parents property. During the course of the work they have damage multiple tiles to their garage roof through carelessness (dropping heavy items, rendering being spilt on it). The garage is less then 2 years old. The builder has been very aggressive with his position but says he will 'fix it', the neighbours haven't been very helpful with resolving it either. Do they have to let the builders touch it? My parents would rather pay their original builder to put it right then have next doors on their property. However this doesn't seem right to me. Does anyone know what their rights are? No party wall agreement was signed. Thanks.