In any property there are so many issues which happen on the outside or exteriors of the property which are mostly ignored by the property owners.
The easy way to determine whether you may have external property problems is to examine gutters, downpipes and drains for signs of deterioration.
Vegetation growing out of gutters
Slipped or loose slates
Rusting or cracking cast iron down pipes and gutters
Leaking overflow pipes
Cracks in stonework
Defective pointing to windows or walls
Moss or lichen growing on the stonework
Damp staining on stonework particularly adjacent to pipes
Damaged or overflowing drains
Check for defects in lead flashings round chimneys valleys and parapet walls