Our vision is to be, by reputation, a leading building services consultancy in our chosen disciplines and sectors; attracting the most talented people, delivering the best projects and contributing to our clients success.

We are CallaghanGreen

CallaghanGreen is a unique, dynamic and progressive building services consultancy that was formally established in 2014.​ The founding partners, directors and team have evolved together over the last two decades, developing a unique working relationship and uncompromising dedication.

This wealth of mutual trust, experience and expertise has been gained operating at senior levels within leading international and local design consultancies, working and developing together on projects of all sizes across the globe under extreme programme and financial pressured conditions.


Since its conception, CallaghanGreen has delivered projects for a diverse spectrum of clients across sectors including residential, commercial, leisure, healthcare, education and major events...

Callaghangreen "Building Services" "Mechanical" "Electrical" "Public Health"