Underground Drainage

Underground Drainage Systems | PVC-U Pipes & Fittings

Enterprise Building Products supplies an extensive range of 4″ (110 mm) and 6″ (150 mm) underground drainage pipes, fittings, and accessories for gravity and sewerage systems—crafted in durable PVC-U and polypropylene for lasting performance.

Range & Benefits

  • Comprehensive product range including pipes, bends, gully traps, grids, adaptors, manhole risers, chamber bases and more.
  • Durable material—PVC-U for pipes and fittings; polypropylene for inspection chambers and gully components.
  • Modern, compact design yet compliant with British Standards.
  • Convenient push-fit seal and snap cap joints for tool-free, watertight installation.
  • Terracotta colour matching common drainage systems.
  • Compatible integration with most Underground Drainage brands.

Applications & Standards

Ideal for waste and foul water drainage, these systems are trusted in both residential and commercial projects. Manufactured to exceed quality expectations, they conform to standards such as:

  • BS EN 1401-1:2009 (PVC-U Underground Drainage)
  • BS EN 13476-2:2007 (Structured-wall non-pressure PVC-U)

Typical Products in our Range

Our stock includes, but is not limited to:

  • 110 mm & 160 mm straight pipes and socketed bends
  • Push-fit junctions and branch fittings
  • Level invert and clay-to-plastic adaptors
  • Gullies, chamber bases, risers, and covers
  • Rodding points, traps, and non-return valves
  • Surface channel drains with grids

Browse our full product spec listings for detailed codes and configurations. :contentReference[oaicite:2]{index=2}

Why Choose Enterprise?

  • Trade & DIY Friendly: Lightweight, easy to fit, made for speed and efficiency.
  • In Stock & Delivered: Ready-to-go products with delivery throughout the Midlands and beyond. 
  • Expert Advice On Call: Our team can help guide specifications and selections.

How to Order

  1. Share your drainage requirements: pipe diameter, fittings needed, drainage purpose (e.g., manholes, gullies).
  2. Let us know your timetable for delivery or collection.
  3. Email us at sales@enterprisebp.co.uk or call your closest branch:
Wolverhampton (Bilston): 01902 490713
Chelmsley Wood (Birmingham): 0121 779 7862
Cannock: 01543 758356
Perry Barr (Birmingham): 0121 714 4633
Ready to move forward? Drop us a line with specs or drawings, and we’ll help you finish your drainage project efficiently and effectively.© Enterprise Building Products

Underground Drainage application chart

Exploded Diagrams Underground Drainage