Extension water under flooring but ontop of concrete
Posted by sarah east, on
When converting an existing garage into a room should they have put a membrane on top of the concrete garage floor. Builder is saying no. We now have a leak which is sitting on top of the concrete under insulation and boarding and laminate floor. It is ruined. We have had all live pipes checked, drains, main water pipe and they are not leaking. One plumber checked ground under concrete and it is dry. He thinks rain water is coming in but it is in the middle of property and no signs of damp on exterior walls. It's like a mystery but floor is completely ruined. Insurance won't help until we find the source of the leak which we cannot! They won't even recommend anyone to help. It has cost £1000 so far trying to find where water is coming from. Need a miracle worker!
