Often times when faced with an estimate that is too high you just have to take the solution into your own hands and dice it up into its component parts. That means getting involved at the most detailed level and being distracted from other important work in order to execute a smaller task. It can be hard to say when this is worthwhile vs more of a headache than return. On the other hand why not try and shave off $10k from a job where you felt the pricing was too lucrative for a potential installer. At times our margins are so thin they are basically just covering overhead. We get annoyed when other companies view us as profit centres that they can mark up sky high their work. When they do that our overall project suffers, we are the ones paying every contractor, sitting on huge land costs, financing projects, and making sacrifices and experiencing severe delayed gratification. All we ask for is a fair price. We tend to win over time, to survive we actually need to manage costs. So we do it the hard way