Our house has had a bad smell for 24 hours or so. After some investigation and a fruitless search for dead rodents I think it is a problem with our soil pipe, which leads out under the back terrace. There is a slight film of damp on the bricks under our dining room floor near where the soil pipe comes down. The smell in the dining room is of drains.
So is this something for a plumber to look at, a general builder or do I need a drainage expert?? Help please!