About Harmer

Harmer Building Drainage manages water inside and outside the building. Its systems allow designers, contractors and clients to realise the design, performance and installation benefits of fully integrated drainage solutions.

Harmer Roof Outlets offer an unrivalled choice of aluminium, cast iron rainwater outlets and channels alongside Harmer SML above and below ground lightweight cast iron soil & waste drainage systems. Harmer Floor & Harmer Shower Drains offer the most comprehensive choice in the UK market Featuring cast iron, stainless steel, aluminium and ABS high performance drainage solutions.