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Underground Drainage

Our underground drainage is supplied by Brett Martin, one of the leading manufacturers of Plastic Building & Plumbing Systems in the UK.

Our underground drainage systems comply where applicable with the requirements of the following British Standards:
 
BS EN 1401 - 1: 2009 PVC-U
Plastic piping systems for non-pressure underground drainage and sewerage. Unplasticised poly (vinyl chloride) (uPVC). Part 1: Specifications for pipes, fittings and the system.
 
BS EN 13598-1: 2010
Plastic piping systems for non-pressure underground drainage and sewerage. Unplasticised poly (vinyl chloride) (uPVC), polypropylene (PP) and polyethylene (PE). Part 1: Specifications for ancillary fittings including shallow inspection chambers. 
 
All components are manufactured under a quality management system registered under BS EN ISO 9001:2008.
 
 
Underground Drainage | Brett martin
Underground Drainage | Brett martin
Underground Drainage | Brett martin | Group Shot

We can cater for all underground pipe options with Brett Martin. Featuring a lip seal within single socket pipe and fittings which is secure against dislodgement and makes jointing easier, ensuring joints remain leak free for years to come.

Sydenhams stock a wide range of underground drainage products from Brett Martin, which all integrate with our Brett Martin above ground drainage systems:

  • 110mm & 160mm pipes (incuding Plain End & Single Socket).
  • Pipe Couplings.
  • Single Socket Bends (available in a selection of different bends).
  • Double Socket Bends (available in a selection of different bends).
  • Large Radius Bends (available in a selection of different bends).
  • Equal Junctions (available in a selection of different bends).
  • Access Fittings (available in a selection of different bends).
  • Rodding Points.
  • Universal Traps.
  • Drainguards.
  • 110mm Non-return Valves.
  • Bottle Gully Traps.
  • Adaptors.
  • Drain Connectors.
  • Flexible Couplings, Connections and Adaptors.
  • Socket Plugs.
  • Large Inspection Chambers - 450mm Diameter (LIC).
  • Mini Access Chambers - 300mm Diameter (MAC).

Access & Inspection Chambers

Please note Sydenhams stock a range of Non Adoptable Access & Inspection Chambers, Adoptable systems are available to order upon request