The contract is Option A with the Contractor responsible for all the design. He has asked to change the specification of the drain pipes from clay to plastic. This is not a change to the Employers WI and therefore I do not believe is a CE. If therefore this is accepted by the PM, the Contractor keeps any saving - correct?
Can the PM say to the Contractor that the proposal will only be accepted if a saving is offered to the contract sum? If so, how is this saving realised if the change is not a CE?
Thanks in advance for any guidance.