My understanding is that anything running through your property is your responsibility, but no matter what, I'd repair the drain, especially if water is still flowing through it. Had a friend whose back wall of their victorian terrace began to crack and sink purely due to the neighbours breaking a drain. Became very costly for all.
DIY how to tutorial projects and guides - Did you know we have a DIY Projects section? Well, if no, then we certainly do! Within this area of our site have literally hundreds of how-to guides and tutorials that cover a huge range of home improvement tasks. Each page also comes with pictures and a video to make completing those jobs even easier!