
Galvanised Ductwork
Our quality-assured, bespoke galvanised sheet steel ductwork is suitable for both internal and external applications, including high-level installations.
We design, manufacture and deliver a full range of industrial ventilation systems, including galvanised, fire-rated and stainless-steel solutions. Our integrated approach spans equipment selection, procurement, installation, insulation, testing and commissioning, supporting the delivery of complex air handling systems across a national client base.


Our OSM Ventilation capability brings together the long-standing expertise of E&S Heating & Ventilation, acquired in 2025, with the scale, innovation and engineering excellence of NG Bailey.
Established in 1972, E&S built a reputation as a leading UK ductwork manufacturer. Today this heritage underpins our ability to deliver precision-engineered ventilation systems for complex and highly regulated environments.
Our ventilation design and installation services, combine proven experience with modern offsite manufacturing to improve quality, safety and programme certainty.
We design, manufacture and deliver a full range of ventilation ductwork systems, including galvanised, fire-rated and stainless steel solutions. Our integrated approach spans equipment selection, procurement, installation, insulation, testing and commissioning, supporting the delivery of complex air handling systems across a national client base. Operating from our dedicated manufacturing facility in East Sussex, we combine specialist expertise with offsite manufacturing capability to deliver high-quality, reliable and efficient ventilation solutions.

Our quality-assured, bespoke galvanised sheet steel ductwork is suitable for both internal and external applications, including high-level installations.

We deliver both DW144 & gas tight specialist stainless steel ductwork solutions for environments where performance and durability are critical, including laboratories and pharmaceutical facilities.

Our fire-rated ductwork solutions are delivered through our expertise as a licensed manufacturer of Flameshield fireduct systems, fully compliant with BS EN 1366 Parts 1, 8 & 9 and BS476 Part 24. With over 15 years of dedicated experience, we have delivered fire-rated ductwork across major healthcare facilities, commercial developments, transport infrastructure, including Crossrail, and laboratory environments. Manufactured using advanced, purpose-built machinery, these systems provide a robust, non-coated fire protection solution designed to meet the highest standards of safety, compliance and performance.
Our approach is collaborative and engineer-led, ensuring that every solution is aligned to project requirements, performance outcomes and regulatory standards. Our seamless, accountable delivery model reduces risk and improves coordination across complex builds.
Our delivery model is built around flexibility, expertise and responsiveness. By combining strong on-site presence with central engineering and project support, we ensure that projects benefit from both hands-on delivery and strategic oversight. This hybrid approach enables us to deploy the right expertise at the right time, maintaining close collaboration with project teams while retaining critical skills within our business. The result is a responsive, agile service that adapts to the evolving needs of each project.
Our dedicated manufacturing facility is central to our OSM ventilation capability. By producing all ductwork in-house, we maintain full control over quality, programme and performance. Offsite manufacturing enables precision fabrication in controlled environments, reducing on-site labour requirements and installation time while improving quality assurance and consistency. It also supports more efficient logistics and minimises disruption on site. Every component is engineered for accuracy, ease of installation, and long-term reliability.
Our ductwork installation services bring deep technical expertise and a strong track record of delivering ventilation systems across complex environments. Each project is supported by experienced site leadership, ensuring safe, coordinated and high-quality delivery. Our directly employed teams are complemented by carefully selected specialist partners where required, allowing us to scale while maintaining consistent standards. From installation through to testing and commissioning, we focus on delivering systems that perform reliably from day one.
Every project tells a story of collaboration, technical excellence and delivery at scale. Discover how we help our clients overcome complex challenges, improve performance and create long-term value through our projects.
Discover more
Delivering large-scale engineering facilities through a coordinated, offsite-led approach in a constrained city centre environment

Pioneering platform-based design and offsite manufacturing to deliver the UK’s first net zero carbon commercial office building

Accelerating the delivery of a nationally significant battery innovation facility through offsite-led M&E solutions

Applying industrialised offsite manufacturing to deliver high-volume services infrastructure within a fast-paced manufacturing environment

Using standardisation and offsite manufacturing to transform the delivery of critical water infrastructure at scale

Delivering large-scale MEP infrastructure to support the transformation of a major international airport
Have a question or want to discuss an offsite manufacturing project? Complete our contact form and a member of our team will get back to you as soon as possible.


We design, power, manufacture, operate and maintain buildings, infrastructure and services.

Explore the sectors we serve including commercial, retail, energy, transport and critical infrastructure.

Explore opportunities to grow your career, develop your skills and make a real impact.

See how we deliver ambitious projects that shape the built environment and support communities.