Our story

SES celebrating 64 years of engineering excellence in UK construction
890

employees

45

active sites

£463.7m

turnover (2024)

Rooted in heritage.

Powered by innovation.

For more than 65 years, we’ve delivered engineering excellence to some of the UK’s most ambitious projects.

Partnering with Tier One contractors and end users, we design, manufacture and install building services and infrastructure solutions that make buildings perform better. By combining our heritage of craftsmanship and precision with offsite manufacturing, advanced digital design and innovative delivery methods, we create resilient, sustainable MEP systems that provide greater certainty, improved quality and lasting value for people, communities and the environment.

Our transformation extends beyond mere growth. In line with our purpose, we’re reimagining the future of technology in construction.  
 
“Through sustained investment in advanced digital engineering, smart technologies and offsite manufacturing, combined with striving for excellence in delivery, we are positioning ourselves to become the most profitable and sustainable engineering and technology business in UK construction.”
Darrren Kehoe

Rob Clifford

Executive Managing Director

Reimagining places for people to thrive

How we work

At SES, our people are at the heart of everything we do. We bring together talented engineers, technical specialists and project teams who share a commitment to collaboration, continuous improvement and delivering excellence.

By working closely with our customers, partners and supply chain from the earliest stages, we create smarter solutions, reduce risk and deliver better outcomes. Built on trust, transparency and shared goals, our approach goes beyond traditional client-contractor relationships to create lasting partnerships and long-term success.

Our priorities

Prefabricated MEP assemblies for efficient building services

Corporate information

SES (Engineering Services) Limited is one of the UK’s leading building services businesses and is a member of the Wates Group.

SES and its Strategy Board are committed to upholding the highest standards of conduct and ethics among our business, our employees and our supply chain and we take our corporate governance responsibilities very seriously.  

Governance helps us to conduct our business responsibly, with openness and integrity, and in accordance with all of the laws and regulations to which our business activities are subject. 

Click here to access our Corporate Governance library, including our Code of Conduct, statements, reports, policies and information about our senior management team.

Prefabricated MEP assemblies for efficient building services

Reimagining places
for people to thrive

Talk to an expert

© Wates Group 2026