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about us

a legacy of quality and success.

As a leading Building Services Engineering Consultancy, established in 1999 and rebranded in 2020, Bennett Freehill provides a quality, client focused and professional mechanical, electrical and niche sustainability engineering design service.

We have created a vibrant, innovative and energetic engineering hub that focuses on the advancements in digital engineering and sustainability and is integral to the delivery of pioneering and award-winning projects such as the South West College Erne Campus (the world’s first educational Passivhaus Premium rated building and the first UK building to achieve both Passivhaus Premium status and BREEAM outstanding accreditation), DAERA Headquarters, Giants Causeway Visitors Centre and more recently the UKAEA Nuclear Materials Research Facility and redevelopment of two CAFRE Agricultural College campuses.

Working in collaboration with architects and professional design teams, D&B contractors and M&E sub contractors, we strive to be at the forefront with innovative, practical sustainable solutions to deliver world class buildings for our clients throughout the UK and Ireland.

our team

brilliant minds. passionate people.

Our talented team, led by Managing Partner Cormac Freehill MCIBSE MIET CEng MSc BEng, bring their passion, expertise and personality to every project.  We take immense pride in all our projects and have an ambitious ethos that drives an immersive approach to working on new projects.

Our in-house team consists of Electrical and Mechanical Engineers, Vertical Transport Engineers, Building Physics Engineers, Certified Passivhaus / NZEB Designers, Certified Commissioning Managers, BREEAM Assessors and BIM Professionals.

We design the best buildings today for a better tomorrow.

our vision

collaborate

To work together in pursuit of client satisfaction and a truly sustainable environment.

deliver

To deliver coordinated, practical, design solutions that excite.

excellence

To nurture a passion for technical excellence for our clients and team.

accreditations & memberships

About us Bennett Freehill
About us Bennett Freehill
About us Bennett Freehill
About us Bennett Freehill
About us Bennett Freehill
About us Bennett Freehill
About us Bennett Freehill
About us Bennett Freehill
About us Bennett Freehill
About us Bennett Freehill
About us Bennett Freehill
About us Bennett Freehill
About us Bennett Freehill
About us Bennett Freehill
About us Bennett Freehill
About us Bennett Freehill
About us Bennett Freehill
About us Bennett Freehill

Paul O'Neill

MIET CEng MEng

Paul joined Bennett Freehill in late-2021 as part of the organisations drive towards technical excellence, an employee-focused culture, strategic growth and NZEB focus. 

A Chartered Engineer with 14 years’ experience in the construction and electrical industries, Paul has particular specialisms in electrical engineering, conservation, power generation and vertical transportation having worked on projects in the education, healthcare, hotels and office sectors. 

As electrical engineering design lead, Paul is responsible for technical delivery and project responsibility related to electrical engineering, and more critically, directing technical, quality and standards within the engineering teams.

Paul brings his passion for technical quality, buildability, progressivity and efficiency to the Bennett Freehill team.

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Aaron McCarthy

MCIBSE CEng BEng

Aaron is a Chartered Engineer who specialises in sustainability and low carbon design, with detailed knowledge of passive design techniques and thermal modelling procedures.

Aaron joined Bennett Freehill in mid-2021, having previously gained 10 years’ experience as an Energy and Building Services design engineer within leading multi-national building services practices. Aaron brings extensive experience in managing and delivering large scale multi-disciplinary projects and has a wealth of experience in MEP Project Management.

Aaron is responsible for client liaison, technical delivery and management of design teams to ensure we meet our clients aspirations.

Aaron brings his passion and drive for successful project delivery through collaboration with clients and design teams.

In May 2022 Aaron was appointed as Partner.

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Cormac Freehill

MCIBSE MIET CEng MSc BEng

A Chartered Building Services Engineer with over 15 years’ experience working with some of the UK’s foremost engineering companies, Cormac has been pivotal to the successful award and delivery of multi-million pound projects since being appointed to the role of Managing Director in June 2020 and rebranding the business as Bennett Freehill.

Cormac brings a new vision, new energy and fresh leadership to the team and is responsible for the strategic growth and development of the business, through supporting and undertaking marketing activities, and the training and development of our technically accomplished staff.  In the role of design team leader and client liaison Cormac ensures that the team delivers pioneering, pragmatic MEP design excellence for our clients. 

Cormac specialises in Passivhaus and Nearly Zero-Energy Building (NZEB) construction and is passionate about, and professionally skilled in, Renewable Energy Systems, Energy, Procurement, Design Management and Consulting Engineering.

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Cormac Freehill

MCIBSE MIET CEng MSc BEng

A Chartered Building Services Engineer with over 15 years’ experience working with some of the UK’s foremost engineering companies, Cormac has been pivotal to the successful award and delivery of multi-million pound projects since being appointed to the role of Managing Director in June 2020 and rebranding the business as Bennett Freehill.

Cormac brings a new vision, new energy and fresh leadership to the team and is responsible for the strategic growth and development of the business, through supporting and undertaking marketing activities, and the training and development of our technically accomplished staff.  In the role of design team leader and client liaison Cormac ensures that the team delivers pioneering, pragmatic MEP design excellence for our clients. 

Cormac specialises in Passivhaus and Nearly Zero-Energy Building (NZEB) construction and is passionate about, and professionally skilled in, Renewable Energy Systems, Energy, Procurement, Design Management and Consulting Engineering.

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