Unless they are involved all the way through then it should be a fixed fee for the work they are carrying out. If at a later date you back to them and ask for more then that will be exra.
At the moment, they are doing about 4 drawings. Should you then decide to spend a lot more, even if you dont get any more drawings done, there fee would go up with the % of the project cost.
Unless they are involved all the way through then it should be a fixed fee for the work they are carrying out. If at a later date you back to them and ask for more then that will be exra.
At the moment, they are doing about 4 drawings. Should you then decide to spend a lot more, even if you dont get any more drawings done, there fee would go up with the % of the project cost.