Hi everyone! I am an expat who has been living in the UK for a few years and am hoping to buy a 3 bed mid terraced house. I found a house that I really like, but I noticed a very visible leak on the top floor of the house. Aside from this, the house is great and I'm happy with it. However, as I am new to home ownership and terraced house living, I'm not sure if this looks like some minor work is needed or a "we need to new roof" issue. If my offer is successful I will of course get a proper survey, but I'm trying to understand how expensive of a fix this might be so that I can feel confident about the amount I go to best and final with. Thanks :)