Most "Full fabrication" shops are basically assembly shops... They order the cabinet boxes from one place, they order the doors from another, and even the drawers come from a completely different maker. In this situation only thing the "builder" can garuntee is that he put it together right but if something breaks there are now 4 people involved.
My shop builds everything from start to finish including the doors, We build the cabinet boxes, cabinet doors, and anything else involved in the build to ensure its done right and allow you the freedom to have a fully custom kitchen, bathroom, or any other cabinetry. My work includes 3D models, 50+ Stain colors, plywood cabinet boxes (most use particle board, and I do not charge extra for this upgrade) soft close drawers and doors (I also do not charge extra for this upgrade), and a finish that does not yellow, very scratch resistant, and can be wiped down with pool acid without effecting the finish.
Seeing the look on their face when its completed as they show their friends....