Harmer Drainage Systems

Alumasc's Harmer range provides a single source for innovative drainage solutions that are designed to perform and engineered to last. Covering everything from soil drainage to internal water drainage, there’s the system to suit any plumbing need for construction projects of all kinds, with the Harmer range offering market-leading drainage solutions that can meet and exceed expectations.

Drainage systems that perform

For internal or rainwater drainage, Harmer systems provide a total solution from roof outlet to below-ground drainage, to ensure optimum efficiency from a system that works together with ease. Harmer cast iron soil and waste systems, cast iron drainage pipes, floor drains, shower drainage and wetroom ranges provide a total solution from the connection of plumbing fittings to linking with the underground sewer system, and every link in the chain is carefully accounted for to ensure quality and durability every step of the way.

Find the products that are right for you

For innovative, class-leading systems that cover the whole spectrum of drainage, you’ve come to the right place. With premium, fully-certified products, you’ll soon find the drainage systems that suit your requirements. This, coupled with extensive technical support, approved installers and comprehensive warranties, means we should be your first and only port of call when you’re looking for water drainage products of any kind. From cast iron drainage pipes to gully drainage, channel drainage and everything in between, we’ll be able to accommodate and offer the ideal solution.