Hi,
Looked at them a few years ago.
Part of the reason I didn't go with them was that they didn't do the concrete slab to go with the shed. This meant I would have had to arrange a separate contractor to do that and the setting out for the plates to which the piles would be fixed.
All this considered I decided there was too much chance for errors.
Went with a guy called Derek Grieve of Broomhill Fabrications near to Maud.
Good heavy duty shed and good service and cheaper. Very pleased indeed. He also co-ordinates the slab etc if required.
Hope this is helpful. His phone number is 01771 653311 or 07968380668
Cheers Fishy