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Guttering and Rainwater systems:

Rainwater goods are traditionally available in metal (cast iron more recently aluminium and copper) alond with plastics (avoid upvc if possible). Galvanised and self finished materials are generally more easily recycled and lower maintenance in use.
The most sustainable way of dealing with water is using a sustainable drainage system (SUDS) to hold it as long as possible with a gradual run-off -this can be achieved using a green roof.
Of course, rainwater can be stored for use on the garden or used in applications such as toilet flushing -for more about rainwater harvesting see our grey water page.
For areas surrounded by trees you will need to think about cleaning and maintenance -this may involve protection of gutters with wire mesh, or wider than usual guttering to facilitate cleaning.


  • Alumasc -leading manufacturer of aluminium guttering and downpipes available in a variety of profiles from contemporary to heritage.
  • CoppaGutta -manufacturers and suppliers of copper rainwater systems.
  • GreenSpec -their spec notes on green rainwater systems -including materials to avoid.
  • Gutter Grid -maunfacturers of a clip on mesh system to protect your gutters from blockage. Based in Grimsby, but order online.
  • Guttermaster -manufacture profiled aluminium gutters and rainwater goods together with matching fascia and soffit trims for commercial use.
  • Hargreaves Foundry -traditional cast iron rainwater and soil pipework and fittings.
  • Hunter Plastics -domestic rainwater goods, soil and waste pipes and underground drainage.
  • Lead Sheet Association -some excellent guidance notes and details online for lead gutter construction.
  • Osma Wavin -plastic rainvater goods -guttering, pipes, traps, overflows etc along with soil and vent pipework.
  • Rainclear -specialists in cast iron and aluminium guttering.
  • Tuscan Foundry -cast iron guttering (as well as conservation rooflights and radiators)
  • Yeoman Rainguard -GRP, Aluminium, and Cast Iron rainwater systems.
  • See also our page on Grey Water Systems.

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