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Self lay

You can construct mains and services on new developments sites yourself if you're registered with the Water Industry Registration Scheme (WIRS), a national scheme overseen by Lloyds of London. 

Or you can appoint a WIRS registered Self Lay Providers (SLP) to do the work on your behalf.  They will need to contact us, with your authorisation, to agree our costs. We'll work closely with developers who are considering laying water mains as part of a multi-utility programme.

Additional guidance

The Water Industry Code for Adoption provides guidance that covers the provision of water infrastructure for housing and industry development in England and Wales. More information on this can be seen on our Water Codes for Adoption page.
Although you can lay new water mains, the final connection from the newly laid main to the existing infrastructure needs to be completed by us. Once we've connected and adopted the new main, you've got the option to connect the service pipes to the new properties as another self lay option.

To apply for self lay at your development, we'll need:

  • a site plan
  • A soil analysis report (for developments not deemed Greenfield)
  • A completed application form

Email your application form to:

What happens next?

  1. Make your application
  2. We’ll confirm receipt within five days
  3. We approve or prepare a design as appropriate  
  4. You’ll receive a quote and Legal Agreement within 28 days (42 days if greater than 500 plots) or if the scheme is self lay the equivalent timescales are 14 days and 28 for less than 500 plots
  5. You make payment for any required non contestable costs and return signed Legal Agreement (if the scheme is self lay) alternatively you provide us with notification of intension to proceed for South Staffs Water mains schemes
  6. Pre start meeting
  7. Programme agreed
  8. You lay test, swab and chlorinate mains
  9. We make final connection to commission mains
  10. We issue vesting certificate
  11. We make asset payment to SLP/Developer
  12. Mains ready for service connections

Service connection steps

  1. Make an application (if mains required, mains and services will be on one application).
  2. We’ll confirm receipt within five days
  3. A development technician (estimator) will visit site to quote the service connections on any properties that are on an existing road.
  4. Quotation is built and issued to the customer within 28 days from receipt of all the required information.
  5. The next stage is drive by the customer, we require payment for the connection, council confirmed postal address for each plot and an inspection to be carried out on the supply pipe(s) laid on premises.
  6. Once we have all the above (3 Ps payment, postal and passed inspection) the connection can be raised
  7. Connection should be completed within 21 days, however this can take longer if traffic managements is required (road closures takes three months)
  8. Any income off set is credited.