Coolant leak after garage removed power steering pump.

Hey I left my D2 td5 with a friend for a year. First mistake.....
Needed a new power steering hose he took it to a garage....
Second mistake....
They removed the power steering pump to replace the pipe....
Now I just got back after they did the work and I've got a coolant leak around the power steering pump area. What could they have disturbed disconnected that I need to check etc.....
Thanks Rich

All the seals are on the water pump which runs off the back of power steering pump. Unless the garage have disturbed the water pump it is probably just coincidence or the seals had already started to go and they didn't notice.