Mackley undertook a refurbishment of the Wey Navigation lock in 2002. The project required draining the lock down using a temporary dam to enable sections of recent wall repairs to be removed. The repairs were causing ground water pressure and resultant bulging of the walls. Bricks with the characteristics of the originals of 1650 were used together with lime mortar.
In 2009 Mackley undertook major weir repairs for the Environment Agency. This required sheet pile and anchors downstream of the weir to strengthen the badly scoured banks and sheet pile at the upstream of the weir to prevent scour at the interface of the river invert structure. A replacement steel and timber bridge was also installed.