My neighbours have a problem with a blocked drain. They got a drain company out to try to sort it out but they couldn’t unblock it. They said the water board are coming out and putting a camera down to see where the blockage is tomorrow. We have bought our house but theirs is a housing association property. This. Is relevant. They said that the drains come across our land. We are worried because we had the garden landscaped with new patio, gravel and stepping stones etc and had it replanted too. I think they might need to dig up our garden which will include the patio. Who is responsible for putting the garden back as it is? Another neighbour had a problem with their drains collapsing and the housing association got a company to dig up their garden, replace the pipes etc. The garden was left in a right mess with big dips in the lawn and I’m worried they won’t put our garden back as it is now. We can’t say no to them accessing the drains really can we? Anybody got any advice? Thanks