Retention Bond

A retention bond is a financial guarantee instrument used in construction contracts as an alternative to cash retention. Instead of the client withholding a percentage of each payment - typically 5% of the contract value - the contractor provides a bond issued by a surety company or insurer. The bond gives the client the same financial protection against defects and incomplete works, while the contractor receives their full payment rather than waiting for retention to be released.

How Retention Bonds Work in Construction

Under a standard cash retention arrangement, the client holds back a portion of each interim payment throughout the construction phase and the defects liability period. For contractors and sub-contractors, this can mean significant sums tied up for 12 months or more after practical completion, creating real working capital pressure.

A retention bond replaces that withheld cash with a surety guarantee. If the contractor fails to remedy defects within the defects liability period, the client can call on the bond to recover costs. The bond typically expires at the end of the defects liability period, at which point the surety is released from its obligations.

The growing use of retention bonds reflects ongoing pressure on construction industry cash flow. Several specialist contractor associations - including those representing steelwork, piling, and lift and escalator contractors - have adopted standard terms requiring retention bonds rather than cash retention from their members.