History

Leaving a lasting legacy of positive change

Our heritage

Our history

It’s our roots as a business that define who we are today.

Over the past 20+ years the construction and utilities sector has seen exponential growth. We’ve met this challenge year on year, despite pandemics and other global crises. 

Through our tenacity, our ability to flex our capability and our uncompromising desire to grow, we are where we are today.

A nationwide business, operating across all key infrastructure areas. 

Scroll down to find out more.

Becoming United Infrastructure

You may have heard of us from our previous name, United Living. Since 2025, we have been renamed to United Infrastructure, to better describe the company it had evolved into.

United Infrastructure reflects the scale, complexity, and importance of our work delivering critical infrastructure across the UK.

Key milestones

Here, we highlight some of the key milestones in our journey so far.

2000s

The business we know today began life as Fastflow, a water utility maintenance specialist which was acquired from Northumbrian Water by current CEO and Chairman Neil Armstrong.

2005

This period proved an exciting time for Fastflow, with exponential growth across the energy sector. It secured major contracts with some of the UK’s largest network owners and operators, including Cadent, National Grid, Northumbrian Water, and Yorkshire Water, delivering resilient infrastructure to meet the needs of its customers and the communities it operates in.

2014

Fastflow entered the property services sector when it acquired DW Support Services, a property maintenance and refurbishment business based in London and Reading.

2019

Fastflow joined forces with housebuilding and property maintenance business United Living to form United Living Group. Bringing the two businesses together enhanced the geographical coverage and offering for customers by providing a fully integrated service from development through to build and maintenance of projects.

2021

United Living Group completed the strategic acquisition of Great British Communications (now known as United Living Connected), which plays a vital role in the UK’s connectivity. Connected provides a full suite of design, construction and maintenance services to the mobile telecommunications, civil engineering, and electrical engineering industries.

2023

United Living Group secured investment from one of the world’s biggest private equity investors, Apollo Global Management. The multi-million-pound deal is the first in the UK for Apollo’s £1 billion impact fund.

2024

April – we acquired AFECO, a leading provider of water solutions, including technical services, MEICA.

June – we acquired GTEC, a leading training specialist who delivers our inhouse training, from early careers, to cyber, to overhead lines.

October – we acquired PiLON, a leading property services business operating in the social housing sector, complementing our Social Infrastructure suite of services.

2025

A Powerful Year for United Infrastructure…

March – we acquired Jones, a leading LV power distribution and street lighting contractor.

May – we acquired Peter Duffy Ltd, a civil engineering contractor specialising in water infrastructure.

June – we acquired a majority stake in Glenelly Infrastructure Solutions, a power distribution specialist.

September – the company rebranded to United Infrastructure to better describe the company it had evolved into.

December – we acquired Wood’s UK Transmission and Distribution business.

2025 saw United Infrastructure build their power business through acquisition, positioning themselves as a major player in this space, with countrywide capability.

2026

Introducing Systems that underpin our core markets

February – acquisition of Simkiss Group, a leading engineering solutions provider across sectors including energy, utilities and infrastructure.

Simkiss work across Energy, Water, Data Centres, Transport & Rail to deliver intelligent control systems to critical infrastructure.

Today

Today, United Infrastructure employs over 2,700 engineers, professional managers and skilled operatives across the UK, all dedicated to realising our vision of creating a connected, sustainable future.

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Get in touch

Whether you have a specific project in mind or if you’d like to find out more about the work we do and how we can help you, we’d love to hear from you.

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