save worries
The owner can work as usual, without disturbing the owner's living arrangements, and without the owner being at the construction site every day.
save effort
The owner doesn't have to run around with materials, and the supervisor will check the quality of materials instead of the owner; Building technology.
gain time
The owner is not afraid to delay the time, but the supervisor will help you determine the time reasonably and write it into the contract. If the other party procrastinates, it will be punished.
save
If the owner invites the supervisor, it can save about 8% of the decoration cost, and can put an end to the overestimation, reckless calculation and shoddy construction of the decoration company.