Many pipes need hooks to hold them up. This is part of a facade, and all pipes had hooks. The rivets don't work very well on tin/lead pipes unless they are also soldered, which is what we had to do. This picture shows the hook before it was soldered in place. (One of these pipes nearly fell out of the facade to the floor when an unsoldered rivet came loose!)
Many times the work needs to be done in a wood shop rather than in the church. Our office and shop in Maple Grove is where we construct wind chests, repair and clean pipes, do wiring and voicing. Illustrated here is a selection of pictures taken in the shop.