Retention money

A contractor does not receive full payment of the work certified by the
surveyor. Contractee retains some amount (say 10% to 20%) to be paid, after sometime,
when it is ensured that there is no fault in the work carried out by contractor. If any
deficiency or defect is noticed in the work, it is to be rectified by the contractor before the
release of the retention money. Retention money provides a safeguard against the risk of
loss due to faulty workmanship.