The Construction Centre
Magnifying Glass

Below Ground Drainage Companies in the UK

  • Flexseal design and manufacture a comprehensive range of fully approved low and non pressure flexible couplings suitable for sewerage, drainage, plumbing...

  • Althon Ltd are specialists in the design, manufacture and supply of surface water drainage and sustainable urban drainage systems (SUDS) for the...

  • Stanton Bonna drainage products includes Circular and elliptical concrete pipes and used for sewerage and drainage systems, attenuation tanks and sea...

  • Tubosider is the market leader in the manufacture and supply of corrugated steel pipe and related products used in stormwater management tanks, soakaways,...

  • Saint-Gobain PAM UK is the primary supplier of ductile iron and cast iron products to the UK's key utilities, telecoms, highways, civil engineering,...

  • Grassform Group
    Grassform is a leading ground protection, land drainage and sports ground company with a large range of specialist plant and agricultural machinery available for hire or sale. We offer a wide range of versatile solutions for ground reinforcement and turf protection. Our products include GRB Grids, Geogrids and other plastic meshes for outdoor flooring, temporary roadways, walkways or car parks.
  • Marley Plumbing & Drainage
    Manufacturers and suppliers of above and below ground drainage, hot and cold water supply and ventilation product ranges and offering storm water management and rainwater harvesting systems.
  • John Davidson (Pipes) Limited
    Specialist in civil and drainage products with distribution centres throughout mainland UK.
  • SDS Ltd
    SDS Ltd are a the leading UK provider of surface water management offering a complete solution from design, consultancy and manufacturing, through to installation and maintenance. We offer complete stormwater attenuation and sustainable systems as well as hard landscaping and industrial cooling and waste water treatment. All high quality specified materials carry our manufacturer’s warranty.
  • Marshalls CPM
    CPM is a market leader in the supply, manufacture and design of concrete drainage products including flexible, Ogee & perforated pipes, sealed manhole sytems, manhole bases, manholes, special cover slabs, box culverts, caissons and gully pots. We also offer a design service for special applications, complete with AutoCAD drawings.
  • EBP Building Products Ltd
    EBP Building Products are importers and manufacturers of drainage, building & roofing products to the trade. Our core products include natural roofing slates, surface water channel drainage systems, Firestone RubberCover, EPDM roofing membranes, manhole covers, polythene films and damp courses . In addition we also supply a comprehensive range of ancillary products.
  • Polypipe Civils
    Polypipe Civils is a market leading UK manufacturer of surface water drainage, sewerage, cable protection systems and water management solutions. Serving the utilities, construction, civil engineering, agricultural and sports and leisure markets, we provide innovative and bespoke product solutions and have the people and production facilities in place to meet and exceed industry requirements.

Where to buy below ground drainage

  • Flexseal - Endeavour Works, Newlands Way, Valley Park, Wombwell, Barnsley, South Yorkshire, S73 0UW, 01226 340 222
  • Althon Ltd - Vulcan Road South, Norwich, Norfolk, NR6 6AF, 01603 488700
  • Stanton Precast - Littlewell Lane, Stanton by Dale, Ilkeston, Derbyshire, DE7 4QW, 0115 944 1448
  • Tubosider UK Ltd - 10 Sutton Fold Industrial Estate, Lancots Lane, Sutton, St Helens, Merseyside, WA9 3GL, 01744 452900
  • Saint-Gobain PAM UK - Lows Lane, Stanton-by-Dale, Ilkeston, Derbyshire, DE7 4QU, 0115 930 5000

Should the soil and vent stack to a two storey dwelling connect to the head of the drain within a manhole on level invert or is it allowed to be connected to a branch within the chamber.

I await your reply,



If I understand your question correctly, you are referring to a GRP or brick manhole with several branch connections within it...should you use a spare one for sole use as a vent or can you use a branch which is also being used for waste water from wcs, bath and basin etc.?

Assuming the foregoing is right, the answer to your question is either way is fine provided the Inspection Chamber is at the head of the drain run.

If in doubt refer to Building Regulations AD; H or your local Building Inspector.


Leigh Tugwood - Architect -

Is there any way of overcoming blistering in below ground foul water pipes other than removing and replacing?

There are a number of no dig solutions on the market. The product development team at Fernco Environmental featured above have been very helpful with my investigations on your behalf. Fernco can provide a localised repair system called 'pipe doctor' which can be installed in 550mm - 1200mm lengths and is suitable for pipes with diameters of 75mm - 1200mm.

If the pipe has been badly deformed (as is often the case with pitch fibre pipes) depending on the severity, it may be possible to carry out reforming and lining. and both offer further help and advice with this problem.

Kind regards

Debbie Prince - The Construction Centre

Show All

Related Categories