New water mains

Our dedicated Developer Services team is here to make sure you get the simplest and most economical solution for new water supplies to your development. To help when you are preparing costs for a development, we have a water pre-development enquiry form (PDF 107 KB opens in a new window) that you can use to check if we have enough water for your development, and also to see if we have any existing equipment on the site that could affect your plans.

Developers have the choice of using a self lay organisation or ourselves to install the new water main, and then make individual water connections to the new properties. No matter who you choose to provide your new water supplies, our Developer Services Team will be there to help.

Getting a new main requisition

If you choose to ask us to install your new main and services you will need to complete our Application for a new water main requisition (PDF 323 KB opens in a new window)

We can provide you with all the information you need to plan and install your new water main. We will also help to plan your new connections, including the excavation option (PDF 106 KB opens in a new window) so that your development is completed without delay.

Following receipt of a signed acceptance, and payment of our mains requisition quotation, we will contact you to arrange a pre-start meeting and to discuss your construction programme.

In accordance with the construction programme, a separate request for work RFW4 main laying (PDF 135 KB opens in a new window) must be submitted.

To reduce the risk of damage to any trunk main, we set out standard conditions for work carried out adjacent to, or when crossing, trunk water mains (PDF 40 KB opens in a new window).

Self-Laying of New Mains and Services 

We understand that developers want all utilities, including water, installed quickly and economically. Our Developer Services team is fully set up to assist developers who wish to use a self-lay provider (SLP), and we often make an asset payment when we adopt a self-laid main. We have arrangements with Lloyds Register (www.lr.org) that allow developers to safely choose an SLP that fully understands our policies and procedures for both new mains and service connections.

The Code of Practice for the Self-Laying of Water Mains and Services – England and Wales (PDF 2,489 KB opens in a new window) details the delivery processes, requirements for the work and specifies the role of SLPs and the Water Company in the construction of water mains for adoption by United Utilities, setting out the practices that are common across the industry.  In addition to the industry Code of Practice, our Local Practice Agreement (PDF 484 KB opens in a new window) details everything you need to know about working specifically in the United Utilities area in the North West.

Before the work starts, we will enter into a Self-Lay Agreement (PDF 201 KB opens in a new window) with the developer, the SLP and any other interested parties (e.g. landowners) so that we are all clear what work is being done and when your new water supplies will be needed.

If you are an SLP and you wish to apply to self-lay a water main and service connection, please complete our Self-Lay Application Form (PDF 242 KB opens in a new window) and send it to us at SLOwater@uuplc.co.uk.

Request for work

When you are ready for us to undertake a water mains connection, you'll need to complete the relevant request for work form(s) below:

Details of charges associated with making a connection can be found in our connection charges 4.2 document (PDF 168 KB opens in a new window).

To reduce the risk of damage to any trunk main, we set out a number of standard conditions for work carried out near a trunk water mains. These conditions and precautions are outlined in the following documents: