Energy in building design Driving performance through M&E excellence Leader in Passivhaus and Net Zero energy design Designing a sustainable future Designing better buildings to benefit people and the environment Sustainable, low-carbon, high-performance building solutions that benefit people and the environment Home Bennett Freehill Home Bennett Freehill Home Bennett Freehill Home Bennett Freehill Home Bennett Freehill Home Bennett Freehill

About Us

Bennett Freehill is setting the standard for sustainable design across the UK and Ireland.

Bennett Freehill is a forward-thinking Building Services Engineering Consultancy, recognised for its pioneering approach to mechanical, electrical and specialist sustainability design.

Founded in 2020 by Chartered Engineer Cormac Freehill, we are driven by a commitment to high-performance, low-carbon, sustainable solutions, with expertise spanning Passivhaus, BREEAM, NZEB and Net Zero Carbon, underpinned by continuous learning and development.

We foster an inclusive, collaborative culture where shared expertise creates meaningful outcomes for our clients, communities and our team.

Working closely with contractors, architects and developers we provide the insight needed to win and deliver outstanding projects.

With experience spanning commercial, education, healthcare, community, conservation, residential, tourism, leisure and industrial sectors, we deliver award-winning projects that are setting new global benchmarks in sustainable design and creating lasting impact for our clients, communities and team.

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Our Expertise

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Integrated building services and sustainability expertise, from concept to completion, for high-performance, low-carbon buildings.

Intelligent collaboration is at the heart of everything we do. Driven by innovation, sustainability and technical excellence, our experienced team continually refines its approach to deliver the best outcomes on every project. We design better buildings today to create a more sustainable tomorrow.

We deliver a comprehensive building services design solution, guiding projects seamlessly from initial concept through to fully detailed technical design, tailored to meet each client’s unique requirements.

Our team combines technical rigour with hands-on experience, supporting clients, architects and design teams in realising ambitious sustainability goals from initial concept through to project completion.

We use advanced dynamic simulation software to rigorously analyse building performance, enabling us to develop informed, efficient and project-specific design solutions.

We are committed to staying at the forefront of digital engineering, delivering fully BIM Level 2 compliant models across all our projects to ensure coordination, accuracy and efficiency.
Our in-house team provides specialist expertise to manage commissioning from design through to construction, ensuring seamless integration and optimal system performance.

Our Approach

We work with purpose, deliver with clarity and achieve excellence in sustainable building design.

At the heart of our approach is a shared passion for technical excellence, driving value for our clients while empowering and inspiring our team.

We are driven by a shared commitment to exceptional client outcomes and a sustainable built environment, delivering coordinated, practical and inspiring design solutions that perform as well as they function.

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Need our expert insights to deliver your sustainable project? Get in touch with our team.

Our Culture & Values

Our culture is built on client-focused excellence, innovation, sustainability and integrity, within an inclusive workplace where people are valued, empowered and supported to grow.

Client focus

We collaborate across teams and with our clients to deliver innovative, high-quality solutions and better outcomes through continuous learning and technical expertise.

Sustainability

We champion sustainable, low-carbon, high-performance building solutions that benefit people and the environment.

Professionalism and Integrity

We operate with honesty, transparency and professionalism, fostering trust and accountability in every relationship and every project we deliver.

Working Environment

We have created a fun, flexible, team-centred and rewarding workplace that promotes wellbeing, work-life balance and professional and personal growth – a place where people feel valued, supported and empowered to thrive.

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Our People

Our greatest strength lies in our people - their knowledge, passion, commitment and collaborative spirit.

Our talented team, led by Managing Partner Cormac Freehill, brings passion, expertise and individuality to every project we undertake. We take genuine pride in our work, approaching each new project with energy, care and ambition. Our greatest strength lies in our people – their knowledge, commitment and collaborative spirit. We strive to be recognised not only for the quality of our engineering, but also as a leading employer within our sector, known for supporting, developing and valuing our people.
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Accreditations & Memberships