Your professional renovator will do everything possible to accommodate changes but you need to talk together as soon as something happens
Things are underway and rolling along quite nicely. Suddenly something changes. Perhaps it is damage that was previously undetected, or you have decided to change materials manufacturer or some products will not be available on time. You have decided that you really need more electrical outlets. Lots of things can happen.
Your professional renovator will do everything possible to accommodate changes but you need to talk together as soon as something happens. Changes can affect the price of the section or the whole project. Additional or more specialized workers may need to be incorporated into the plan. It may cause delays. It may impact the next phase of the renovation and cause even more delays, cost, or workers.
All changes and additions should be fully documented. These are called “change orders”. Both parties should sign the document. You and the remodeler should understand thoroughly what is going to happen to avoid any misunderstandings. Change orders usually involve a alteration in the price. If you will need to come up with additional funding, you should discuss how payment will be handled, i.e. as part of the finished deal, or at the next payment period, or right now.