Welcome to SIG Commercial Drainage

SIG Commercial Drainage is the preferred supplier for the complete drainage solution to the public health, building services, mechanical and commercial plumbing contractor.

On all above ground drainage and all tools and components in between, we can offer you industry leading expertise on all market leading brands and products, in a market where specialist knowledge is essential to meet the rising standards in the industry.

Our extensive product range and specialist fleet of vehicles ensures your project can be delivered on time and within budget – no matter how complex the challenge.

For more information on each of our product ranges please click here.


Our staff at SIG Commercial Drainage are not only committed to providing you industry leading technical expertise on our extensive above ground product range, we are also committed to ensuring you receive the very best service no matter the what size of your project.

The impartial knowledge our staff provide on a wide range of industry leading brands ensures you will receive competitive prices which represent great value for money supported by outstanding after sales service.


Our expanding branch network, ex-stock availability and efficient scheduling ensures you get delivery of your products exactly when and where you want them -no matter how large or small your consignment – to anywhere in the UK.

Our extensive, highly flexible, delivery fleet includes vehicles to meet any delivery requirement – from our 3.5 tonnes run-around vehicles, offering exceptional rapid response delivery – to our 28 tonnes Moffett Mounty Off-load facility vehicles, we have all of your needs covered.


  • ACO
  • Alumasc
  • Alutec
  • Domus
  • Durapipe UK
  • Friaphon
  • Kem Edwards
  • Marley
  • Multikwik
  • Philmac
  • Plasson
  • Durapipe
  • Polypipe
  • Saint-Gobain
  • Terrain
  • Ultra
  • Vulcathene
  • Wavin