I have worked on building sites for many years. This work has ranged from large scale work for leading home builders, to bespoke custom builds and industrial units.
For large projects I would always meet with the customer and architect before the project and during the build to ensure a finish that meets everyone’s requirements and that you the customer are delighted with.
Payments are taken in stages to secure materials and to cover labour. A final payment is only made once you are happily looking at your new build.