There is a flashing issue. Could be a window above the door. Look for an area where they tucked their raincoat into their pants.
The weather barrier which is under the siding material needs to overlap each other , so when the water gets behind it runs down the material and goes over the piece below. If there is anyplace that the upper piece goes behind the lower piece...tuck your raincoat in your pants and find out what happens.
Inexperience is what this job sounds like.