New water main

If there is no public water main on your development or outside of your property, a new water main will need to be laid.

We will work with you to make sure you get the simplest and most cost-effective solution for new water supplies for your development. If you’re still in the early stages of your development, you may find our pre-development information useful as it outlines things to think about before you start work.

You can apply to us for new water mains and services, or you can go to a self-lay provider (SLP), or New Appointments and Variations (NAVs) for this type of work.

Requesting a new water main from us

We can provide you with all the information you need to plan and install your new water main, including an option for you to dig and backfill the trenches for the water mains to be laid (excavation option). We will also help you to plan your new connections so that your development is completed without delay.

  • Step 1 - Before you apply (you)

    • Have you got local authority planning approval? You will need this before applying for a new water main. 

    • Do you know the history of the land you're building on? If it’s not greenfield land and has been previously occupied, you will need to engage a geo-technical specialist to complete a Risk assessment (PDF 110 KB opens in a new window) which should be submitted with your application for a water main. 

    • If your development is for domestic dwellings and you are using water efficient fittings and appliances, you may be eligible for a discount on your water infrastructure charges. You can check on our Water efficiency calculator (PDF 1,334 KB opens in a new window).

    • If your development is for multiple domestic dwellings within one building, and you will be installing a bulk meter that will be dealt with by a management company, please provide the details of the management company including their company registration number.  This is needed before we can provide a quote.
  • Step 2 - Apply for a new main (you)

    When you’re ready to apply for a water main please complete an Application for a new water main (PDF 348 KB opens in a new window) and send to us with:

    • A site location plan (including site address, postcode and x - y co-ordinates).

    • Development plans showing the route of the pipework for water, wastewater and surface water within your boundary.

    • A completed risk assessment form (PDF 110 KB opens in a new window).

    • The application fee of £429.60 (excl VAT). For more information please refer to our charges scheme, details on how to pay are in the charges scheme.

    If you would like to take the excavation option please complete an Excavation option agreement (PDF 106 KB opens in a new window).

    You may need to submit additional documents, depending on your circumstances, details are in the application form.

  • Step 3 - Quote (us)

    One of our design engineers will review your application and assess your water main requirements. Within 28 calendar days we’ll send you:

    • A fixed quote for main laying specific to your project

    • A scheme drawing

    • Relevant schematics for pipework installation

    • Estimate for connections for each plot (where applicable)

    From the date of the quote you have three months to sign and return the acceptance note. Once you’ve returned it, the price will be valid for a further three months. If work doesn’t start within this time, a new quote will be required and a charge for this may apply.

  • Step 4 - Accept quote and make payment for water main (you)

    Please send us the signed quote acceptance note together with payment for the work, as detailed in your quote.

    Please note payment needs to be made before work can start. Details on how to pay are in our charges scheme.

  • Step 5 - Complete site work (you)

    If you are doing the excavation work for the installation of the water main, you’ll need to dig the trench as per the route of the mains design drawing supplied with your quote.  The timing of this work will need to be arranged with us so the laying of the water main does not affect site works or the construction programme.

  • Step 6 - Complete a water mains request for work form (you)

    When you’re ready for us to undertake the water mains connection, please complete a Request for work (RFW4) for main laying (PDF 134 KB opens in a new window).

    We will then contact you to arrange a pre-start meeting and to discuss your construction programme. The water main will be laid within 90 days of payment for the work and receipt of the request for work form (RFW4).

  • Step 7 - Provide site information (you)

    Once the water main has been laid, you’ll need to complete all work required on site, this will be detailed in the pipework specification drawing supplied with the quote. 

    When the site is ready for the individual water connections to be made, please send the following:

    • Written confirmation of the new postal address, on letter headed paper, from the local authority (street naming and numbering department).

    • Pipework certificates – for 25mm and 32mm pipes please provide a WIAPS (Water Industry Approved Plumbers' Scheme) certificate if you’ve used a WIAPS registered plumber. If you’ve used a non WIAPS registered plumber we will need to inspect the pipes.

    • We need to inspect pipework that’s 63mm and above, we also need a copy of the pressure test certificate and a chlorination certificate. If the supply is 80mm or greater we will also need to see the laboratory sample pass results.
  • Step 8 - Complete a water connection request for work form (you)

    Once you’ve supplied all of the information above, please complete a Service connections request for work (RFW1) and notice of intent to work (PDF 326 KB opens in a new window to ensure that all necessary work has been completed.

  • Step 9 - Connections made and meters installed (us)

    Once we’ve received all of the information outlined above, we’ll endeavour to make the connections and install meters within 21 calendar days, this is subject to any traffic management restrictions which will be detailed in your quote. 

    If, for any reason, the connection cannot go ahead, there may be additional charges, so please ensure all details supplied are correct.  

  • Step 10 - Set-up of accounts (us)

    Once the site connections have been made live, and meters installed, all information will be sent to our billing department and accounts will be created for all properties.

    We’ll then send you a bill for the new connections and meter installations on site.

  • Step 11 - Make payment for connections (you)

    Please make payment for the water connections within 30 days. The bill will include charges for connections, meters, infrastructure and building water, and traffic management (if applicable) for each property.

If you need further information on applying for a new water mains please email us on watermains@uuplc.co.uk.

High Demand

Help to save water where you can

We’re all enjoying the hot weather but with more of us at home we’re seeing big increases in water demand that may lead to low water pressure in some areas. Our key workers are working around the clock pumping extra water into the network but we’re asking our customers to help save water where they can. Together we can make a big difference. 

You can help by saving water where you can, on average each person uses 142 litres per day and there are some really easy ways to save. 

For water saving tips and more click here

We’re all enjoying the hot weather but with more of us at home we’re seeing big increases in water demand that may lead to low water pressure in some areas. Our key workers are working around the clock pumping extra water into the network but we’re asking our customers to help save water where they can. Together we can make a big difference.

Help save water

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