OSMA Drainage


The reference for residential and commercial drainage systems. One of the UK's most trusted and leading names in plastic drainage systems, Osma offers a complete range of plastic drainage systems for domestic and commercial projects. The source for all types of gravity drainage, sewer installation and pressure pipe systems in any private or public development.



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Above Ground Systems


PVC-U gutter profiles for residential and commercial applications


Soil system offering solvent weld and ring-seal connection methods


Push-fit waste and solvent weld waste systems for standard and high temperature usage

Osma Overflow, V-Joint traps and Condensate

Wavin’s waste and complementary trap, overflow, condensate systems connect seamlessly with Wavin Osma Compact PVC-U Soil or Wavin AS Acoustic soil systems.


Hygienic self-sealing waste valve


Below Ground Systems


Below ground drainage system

Osma UltraRib

Plastic drainage system for adoptable situations up to 300mm

Osma Inspection Chambers

The widest range of bases available for adoptable and non adoptable situations

Osma domestic channel drainage

Lightweight and robust drainage soultions - plastic and galvanised grating options

Osma Above Ground

OsmaSoil, Osma Waste, Rainwater and downloads

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Osma Above Ground

Osma Below Ground

OsmaDrain, UltraRib, Inspection Chambers and downloads

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OSMA Drainage - Ultrarib pipe