About Us

Who are UES?


UES was founded in 1986 by mechanical engineer Roger Griffiths, specialising primarily in Warm Air Heating. Throughout the years that have followed, a wealth of versatile talent and experience has helped the company branch out into all modern aspects of Mechanical, Electrical, and Renewable services. Our client base across the South West & South Wales spans a multitude of commercial and industrial sectors, including sports & leisure, retail, transport, healthcare, places of worship, education and much more.

A lot has changed in the time that we’ve been operating, but some things were made to stay the same. We’re still proudly family run and place our level of customer service above anything else. We’re in the business of long-term client relationships, and we’re lucky enough to have witnessed a lot of those blossom into meaningful friendships. Our fleet of highly qualified, local engineers allow us to offer tailored, personal, and reliable communication to all of our clients in the areas that we operate in.

We are experts in our trade and can offer complete design, installation, and maintenance for all aspects of mechanical building services. From outline schemes and ongoing facilities management, to handing over turnkey installations, we have a solution for you.

Corporate Social Responsibility

Why do we do what we do?


UES takes huge pride in diving into every project with the same level of excitement, attention to detail, and passion.

We do this because we’ve seen the direct impact our work can have on the communities that surround the buildings we work on.

Our clients span across a wide variety of sectors and industries, and time and time again we witness even the most minor upgrades make a major difference to the people they affect.

To help give back and make a positive difference to our community, we sponsor Community of Purpose, an organisation dedicated to transforming the lives and futures of young people.

As well as being part of their Pennies for Purpose scheme, UES hosts an annual cricket tournament to raise funds for their Break Free initiative, helping eradicate holiday hunger over the Summer.

Last year our cricket day, full of inflatables, food trucks, kids Olympics, ice cream and craft stalls raised a massive £3100.

We can’t wait to host our next day at Portishead CC on Saturday 10th September and hope to see you there.

Photo of UES and Community of Purpose, a community organisation in Bristol

Sustainability Pledge

How are UES working towards a sustainable future?


Our industry finds itself in a particularly exciting time. As we progress towards net zero, we are surrounded by change. Renewable technologies are advancing at a rapid pace, and we are welcoming the opportunity to apply them wherever possible.

UES adopts a contemplative, holistic approach to sustainability, making sure that the services we provide prioritise long term benefits rather than short term wins. We study buildings as a whole, and realise that although adding a high-efficiency heat source to a building that is single glazed and poorly insulated may look like a great win, it may in fact lead to a long term loss.

We always look at the bigger picture, and advise the correct steps accordingly. We are committed to making every system as efficient as possible.

Not only are we forward thinking in terms of the services we provide, but we also adopt a sustainable mindset to everything we do behind the scenes. We are proud members of Ecologi, an environmental organisation that helps us offset our carbon reduction and plant trees on our behalf. Through our membership with Ecologi, we have contributed towards reduced emissions worldwide, from Bulgaria, Chile and Vietnam, to Brazil, India and Mozambique.

Our fleet is powered by Coco+, the first carbon offsetting platform that enables us to offset our business travel impact. The platform supports the Bhadla Solar project in India, and is due to deliver nearly 20 million tonnes of emission reductions over its lifetime. It has a nationally significant impact on delivering clean energy across India. It is a gold standard project delivering significant benefits for local health, wealth and infrastructure as being the largest solar park in the world as of 2020, covering 14000 acres.

Photo of UES and Community of Purpose, a community organisation in Bristol