What it is
The sill of an external sliding door sits level or slopes back toward the house.
Why it matters
Rain ponds on the sill and can get under the frame into the floor.
How we check it
We put a level on external door sills to check they fall away from the house.
The fix
Re-set the sill so water drains outward.
How common it is
70% of the homes we inspected at handover had at least one door or window defect.
As seen on our socials
