re: Cost plus building

It's very difficult to have remodels done for anything less than cost plus. They are almost always cost plus because the process will vary whereas new construction is process driven and you can do it the same way every time. Repeatability makes it where you can get hard bids.
Remodels are hard to even help a customer estimate bc you cant see exactly what needs to be done, you only guess what's behind the finished areas. Patience is the key to remodeling.