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Message last updated - Thursday 30th April 2026
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Message last updated - Thursday 30th April 2026
Message last updated - Thursday 30th April 2026
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From new pipes and pumping stations to storm tanks and nature-based wetlands, the @one Alliance is delivering better infrastructure for today and tomorrow. Carrying out hundreds of essential improvements across our water and water recycling network.
Together, we’re investing £3 billion between 2025 and 2030. Making our infrastructure stronger, more sustainable, and ready for the future.
Making improvements where they matter
Our region is growing quickly, and our network needs to grow with it. The @one Alliance is helping us do just that. Building new pipelines to bring water to more homes, improving treatment sites to protect the environment. As well as strengthening parts of the network that need more resilience.
Right now, we’re working on over 800 projects. Each one carefully planned to make a difference now and for generations to come.
Putting our customers first
We know that construction work can be disruptive, especially when it takes place close to homes, schools and roads. That’s why we have Customer Experience Specialists involved in every single project. Making sure we make the right engineering decisions for customers from the very start and avoid disruption wherever we can.
We also keep in touch with customers in lots of different ways. From traditional letters to text messages, social media updates, local newspaper coverage and working closely with community groups. However we reach you, we want to make sure you feel informed, supported and listened to.
Adding value to local communities
We want every project we deliver to leave a positive legacy. That’s why we run school workshops on science and engineering, support festivals. Along with volunteering in communities, and partnering with local organisations to make a difference where we can.
Every project delivered through IOS is designed to create lasting benefits beyond the asset itself. From connecting properties to the public sewer network through S101a schemes, to improving the quality of local rivers and watercourses, the Alliance is helping to enhance the places where people live.
Environmental improvements are at the heart of this work. Reducing pollution, improving biodiversity and providing greater visibility of river health through continuous monitoring. Supporting stronger, healthier ecosystems across the region.
At the same time, IOS ensures infrastructure keeps pace with growth. Helping communities remain resilient, protected and supported both now and into the future.
Working as one
The @one Alliance brings together eight specialist partners. Balfour Beatty, Barhale, Binnies, MMB, MWH Treatment, Skanska and Sweco, who all work side by side as one team.
Together, the Alliance delivers half of our capital investment programme. Combining deep technical knowledge with a shared commitment to doing the right thing for our customers, communities and the environment.
A 20-year track record of delivering
We first introduced the @one Alliance in 2005, making us one of the first in the water industry to work in this way. Since then, the Alliance has grown, adapted and delivered thousands of essential projects across our region.
Over the years, we’ve continued to raise the bar. Delivering improvements that support growing communities, protect the environment and help us move closer to our goal of net zero carbon by 2030. From 2015 to 2020, we delivered over 800 schemes across the region. Between 2020 and 2025, we delivered another £1.2 billion programme of upgrades. And now, as we celebrate 20 years of the @one Alliance, we’re looking ahead to our most ambitious investment yet. A £3 billion programme running from 2025 to 2030, as part of our wider £11 billion business plan.