Water infrastructure services

Water and wastewater

upgrading infrastructure

Identifying innovative solutions

United Infrastructure designs, builds and maintains critical water and wastewater assets on behalf of the UK’s water companies.

Through long-term frameworks and capital project delivery, we deliver innovative solutions focusing on safety, reliability of assets, and stakeholder engagement, whilst minimising environmental and carbon impacts.

We have extensive experience working collaboratively with clients on long term frameworks to deliver water and wastewater programmes of work. Our strengths lie in excellent standards of service and safety, coupled with our continual drive for innovation and creative solutions.

Download our Water brochure

Our clients

Proud to work with

Design

We provide a comprehensive range of design services, allowing us to deliver high-quality infrastructure, process, and MEICA engineering projects.

Construction

We design and construct water and wastewater assets for the UK’s leading water companies, delivering projects of all sizes.

Maintenance

We provide clean water and wastewater repair and maintenance services.

New residential estate, houses in England

Developer Services

We deliver comprehensive solutions including mains laying, new connections, diversions and service pipe installation.

Row of identical English terraced houses in Crouch End, North London

Metering

Our solutions include smart metering programmes, meter installation for household and non-household customers.

Our valued client

Northumbrian Water Group

We have a longstanding, collaborative relationship with Northumbrian Water Group, working in partnership across a range of water projects.

United Infrastructure engineer-led expertise has helped maintain the water network across the entire Northumbrian Water supply area since 2005 – delivering complex projects successfully and safely, ensuring a resilient water supply for the North East of England.

Learn more about our partnership with NWG through the link below.

Northumbrian Water partnership

construction worker overseeing digger completing excavation works

Infrastructure Services

The future belongs to all of us

We have developed an ESG Plan for our Infrastructure Services business, which gives a focused approach from which we can track our journey towards creating a connected, sustainable future.

Our ESG Plan has three focus areas, with high level commitments to optimise our impact.

How we work towards delivering these commitments will be shaped and reviewed continuously through our internal governance frameworks. We will measure and report against them via our reporting mechanisms and the publication of our annual ESG Impact Report.

Read our ESG plan

Case studies

Our projects…

Utility Infrastructure Yorkshire

Yorkshire Water – Water Network Construction

United Infrastructure was instructed to lay 6km of new water pipelines to ensure a...

Utility Infrastructure North East

Northumbrian Water – Water Network Maintenance

United Infrastructure has helped maintain the water network across the whole of the Northumbrian...

Utility Infrastructure North East

Sofia Offshore Wind Farm – Water Diversion Works

United Infrastructure delivered major water mains diversions as part of the early works for...

Our latest news

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17/04/2026

United Infrastructure secures place on SP Energy Networks clean power frameworks

United Infrastructure has been awarded two major SP Energy Networks frameworks, covering both substation...

26/03/2026

United Infrastructure to deliver cathodic protection upgrade at Bacton Gas Terminal

United Infrastructure is pleased to announce that it has commenced a major upgrade to...

19/02/2026

United Infrastructure secures Cadent contract at Bromley-By-Bow Gasworks

United Infrastructure is pleased to announce the acquisition of Simkiss Group, a leading engineering...

22/01/2026

United Infrastructure appointed to Wessex Water Minor Works Infrastructure Framework

We have been appointed by Wessex Water to deliver design-and-build services under its Minor...

14/10/2025

United Infrastructure secures £30m Affinity Water AMP8 Capital Framework

United Infrastructure has been awarded a £30 million contract by Affinity Water on its...

09/10/2025

United Infrastructure to deliver roll out of smart meters for Northumbrian Water

United Infrastructure has been awarded a contract by Northumbrian Water as its smart metering...

Get in touch

Whether you have a specific project in mind or if you’d like to find out more about our water infrastructure services across the UK, we’d love to hear from you.