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Why work with us

From Project Management to Prefabricated Ductwork in London - Why Clients Choose Us

From manufacturing prefabricated ductwork to our excellent health and safety standards, there are many reasons why clients in London and across the UK work with us.


As part of Grob Group (formerly Hotchkiss Group), we strive to become the safest, greenest and most trustworthy ventilation contractor and passive fire protection specialists in the industry. This is a goal we aim to achieve by 2030 through encouraging innovation, investing in our team of experts, and prioritising both environmental and social responsibility, whilst continuing to deliver an unparalleled level of service for our clients. We call this our Vision 2030 plan, which also aims to create the most effective and pain-free environment for our clients in London and nationwide.

Why work with us

Our dedicated team

Should you choose Hotchkiss as your ventilation contractor, your building project will benefit from our culture of openness, integrity and service excellence, all driven by our experienced team members. In fact, the majority of our senior management started out as apprentices here at Hotchkiss, and have risen through the ranks, lending their invaluable expertise to the many life-saving services and fire resisting products we provide to clients in London and the UK.

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Our team

Health and Safety

The Grob Group has its own, full-time, dedicated health and safety advisor, who is available to all project teams as well as on sites and at our production facilities. Hotchkiss monitors and promotes a culture of safety first throughout the business, at all levels. Not only has Hotchkiss received the RoSPA Patrons Award for winning 29 consecutive years of Gold Awards for health and safety, but we are also ISO 9001, 45001 and 14001 certified, with RoSPA and Achilles accreditation. Furthermore, we have met all the LPS 1531 requirements for LPCB certification.

Why work with us

Project Management

At Hotchkiss, our contracts teams are primarily developed through the strong Hotchkiss apprenticeship scheme. This provides us with project managers, CAD operatives, engineers, construction managers and supervisors who are all trained to the highest of standards. We are also proud that we retain a very high level of our staff, meaning that our well-trained project teams also have a wealth of experience gained over many years. As a leading ventilation contractor, our project teams are able to manage all aspects of a project in London or elsewhere in the UK, including:

  • planning and programming

  • resourcing

  • plant and equipment selection

  • technical compliance procurement

  • delivery and installation sequencing

  • drawing production and coordination with other trades

  • client liaison and reporting

  • commissioning and close-out

  • production and quality documentation

Why work with us


We have a dedicated estimating department who, in conjunction with our contracts teams engineers, provide fully comprehensive quotes along with supporting documentation in terms of programmes, labour levels, logistics plans and RAMS. We pride ourselves on offering fully compliant bids to suit each project’s individual specification needs.

Why work with us

Supply Chain

As a reputable ventilation contractor, Hotchkiss has, over many years, developed a strong supply chain consisting of companies who are leaders in their own field. Our longstanding relationships have promoted a culture where our supply chain partners are acutely aware of the standards Hotchkiss expects, in terms of quality, compliance and performance.

Furthermore, as prefabricated ductwork engineers, we manufacture all our own ductwork and do not rely on third-party manufacturers. This ensures consistently high standards, in both quality and performance, that our clients in London and across the UK have come to expect from Hotchkiss.

If you require fire resisting products or other ventilation services for an upcoming build, your project is in the very safest hands with us.

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Our Vision

To become the industry’s safest, fastest, greenest and most trustworthy ductwork & passive fire safety provider.

Our Mission

To create the most effective and pain-free environment for our clients.

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Contact us

Ready to work together?

Call 01323 501 234 for a ventilation contractor and ductwork engineers you can rely on for building projects in London and the UK, across a wide range of sectors.

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