Home Products and services Commercial landscaping Sustainable Drainage Systems Permeable Concrete Block Paving Sustainable Drainage Systems aim to solve the potential issue that excessive rainfall may cause, including flooding from drains, groundwater and the run-off from land and watercourses. 4 Results Europa Infilta A block that is fuctional yet attractive and capable of withstanding vehicular loads, whilst providing an effective sustainable drainage solution Grassgrid Grassgrid is the benchmark when it comes to interlocking cavity grid systems. It provides sustainable drainage and a natural looking hard standing for vehicles and strengthening of embankments. Andover Infilta The benchmark when it comes to aethetically pleasing permeable paving. Incorporating the unique characteristics of our leading Andover modular paving range, Andover Infila with it's hidden nibs is a discreet sustainable drainage solution. Stonemaster Infilta The leading Stonemaster range available as a sustainable drainage solution.