Profile: Drainage Spares & Pipework Supplies Ltd. is a provider of ground drainage materials, building materials, tools, and work wear or safety clothing. Our products are guttering, oil tanks, underground pipe, and cast iron products. We are a distributor of land drainage and twin wall pipes. Our twin wall pipe is manufactured in an extrusion process which forms two pipes, and heat joins them together as they are formed. Gutterstuff is a specialist filter material which fits directly into the gutter which prevents debris collecting in the gutter channel.