Protect and manage your underground services
with our quality ducting

We supply a wide range of flexible and rigid duct pipe systems to suit your specific requirements. Made to the highest quality manufacturing standards, our ducting enables you to easily identify, protect and access your underground cables and conduits carrying power, motorway communications, lighting and utilities.

Available in a choice of colours and markings to suit NJUG recommendations, our ducting pipe comes in Twinwall HDPE, solid wall Polyethylene and solid wall uPVC systems. Manufactured to a high quality standard, our ducting also meets the strict regulations of specific industry sectors, such as BBA certification by the highways or ENATS 12/24 Issue 2007/8 for C2 Application.

Just some of the benefits

Fast installation

Our ducting is very fast and convenient to lay. In particular, our flexible ducting minimises the need for bends, which takes time, costs money and can cause cable snagging.


Made of PVC or PE material, our ducting pipe is strong, smooth, non conductive and does not deteriorate in the ground.

High quality

Our pipe is manufactured to meet British and European Standards and the strict requirements of various industries. For example, BBA and BS EN1386, ENATS 12/24 Issue 2007/8 for C2 Application and the Electrical Supply Industry Specification for Cable Protection.

Colour coded

Duct is colour coded to suit your requirements and can also be printed to meet your specifications.

Water resistant

Our ducting pipe is water resistant, if sealed, and can be laid at extreme temperatures.

Chemical resistant

Our pipe is designed to have high compression strength as well as high chemical resistance.

Interested to know more?

Speak to our Ducting experts to make sure you get the most efficient solution for your needs


We have a wide range of sizes available to suit your specific needs. These include:

  • 50/63mm coils
  • 94/110mm coils
  • 137/160mm coils
  • 94/110mm x 6m lengths
  • 125/148mm x 6m lengths
  • 150/178mm x 6m lengths
  • Larger sizes available


Our ducting comes in the following colours to suit your specific application:

Electricity – Black
CCTV – Green
Water – Blue
Gas – Yellow
Motorway Communication – Purple
Street Lighting – Orange
Street Lighting (Scotland) – Purple
Traffic Signals – Orange
Telecommunications (BT) – Grey

Our ducting is generally not perforated but there are exceptions. For example, the yellow gas ducting needs to be perforated when it is laid under roads. 

Interested to know more?

Speak to our Ducting experts to make sure you get the most efficient solution for your needs

Additional products

We also supply a wide range of other products to complement our ducting systems. These include:

  • Duct access chambers
  • Composite covers
  • Sealed duct plugs
  • Precast concrete marker blocks
  • Draw cord
  • Warning tapes
  • Hockey sticks

Please ask us about these products when you call.

Barnsley County Council

"Cotterill Civils were really helpful all the way through, we had to make a few changes along the way and they were able to assist us in doing so. The road had to be closed and they were able to get the pipe to us on time as requested.”

– Martin Sunderland –

Burial depth guide

Ducting to a building must be laid as straight as possible and at a minimum depth of 350mm. Recommended depths for utility apparatus are as follows:

Cable TV and communications – 250-350mm
Electricity (LV) – 450mm
Electricity (HV) – 450mm-1200mm
Gas – 600mm-750mm
Motorway communications – 450mm
Street Lighting – 450mm-600mm
Telecoms – 350mm
Water – 750mm

Ducting general principles

Here’s a quick guide to some general ducting principles*:

  • All runs must be laid as straight as possible
  • If needed, you can carefully bend the ducts or use pre-formed bends supplied
  • There can be no more than one pre-formed 90° bend in any single run of duct
  • Pre-formed 90° bends can’t be installed in any duct linking two joint boxes
  • Footpath or service strip ducting must be laid at 350mm depth of cover
  • All space alongside the duct must be backfilled with granular fill to a minimum thickness of 75mm
  • For all Single Dwelling Units (SDU) duct must be terminated on the external surface of the property
  • The duct termination point shall be in a location that will allow unrestricted access for any future maintenance activity
  • All ducts must be provided with a draw rope after installation, unless it’s agreed locally to substitute the draw rope with a cable
  • Please notify your field based coordinator (FBC) when the duct has been laid and is ready for inspection

 *As defined by Openreach in their Duct Laying Guide

Interested to know more?

Speak to our Ducting experts to make sure you get the most efficient solution for your needs