Finlock Drain

Concrete 'Finlock' gutters constitute a pre-cast unit, typically cast in 400mm lengths. The finlock gutter has a multi purpose forming a lintel and an inbuilt rain water gutter. The lintels are formed by filling the pre-cast lintel trough with concrete, this bonds the units together and forms the lintel. It is common to find this system working poorly, as they allow water to penetrate the property through the joints causing, in some cases, serious structural defects.

It is not uncommon to find basic attempts at repairs using bituminous sealants. This is often only successful temporarily and often degrades over a period of time.