Independence – Setting new standards for water services

As an independent water company, we can serve sites in all areas run by an incumbent regional water company across England and Wales.

We are regulated by Ofwat (The Water Services Regulation Authority) and adhere to the Codes of Practice and Guaranteed Standards for water companies. Our licence enables us to operate public water and sewerage networks under the Water Industry Act 1991, when we have been appointed by Ofwat as a New Appointments and Variation (NAV).

The Kings Cross development, with members of the public and a water fountain in the foreground.

What is a New Appointment and Variation (NAV)?

A New Appointment and Variation (NAV) is made when a company is appointed by Ofwat to provide a water and/or sewerage service to customers in an area which was previously supplied by the incumbent regional water provider.

IWNL is appointed by Ofwat, on a site-by-site basis, to provide water and/or wastewater services; this is known as a New Appointment and Variation (NAV). IWNL owns and operates the water and wastewater network in these areas, providing services to customers including supply of water, wastewater services, metering, and billing. IWNL has all the same duties and responsibilities as the previous statutory water company.

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Scale and expertise

We are part of the BUUK Infrastructure Group, the leading provider of last‐mile multi-utility networks in the UK, employing more than 2000 people and operating networks serving more than two million homes. We were the first independent company to own networks in each of the water, electricity, district heat, gigabit fibre and gas utility markets. At IWNL we have the scale and experience to own, operate and adopt water networks across England and Wales.

As an independent licensed company, we also adopt newly installed water and wastewater infrastructure networks. We are the market leader in asset adoption, with over 25 years’ experience, offering excellent asset values on networks which we own and operate long-term.

Committed to standards of service

We have a dedicated UK customer service team attending to the needs of all homes and businesses connected to our water and wastewater networks. We are customer-focused, aiming to provide clear and simple information and the best possible service to homeowners, businesses and developers.

IWNL has been supplying thousands of homes and businesses for many years and has built a team of experts to manage your water network, so rest assured you are in very good hands.

To find out more about the services we offer and our Guaranteed Standards to our customers, please visit the homeowners or businesses section. Should you need to get in touch, please do not hesitate to contact us.


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