About Quadrant Building Services


Quadrant Building Services focus

Mechanical & Electrical Engineering 90%
Fitout & Fabric 93%
FM & Maintenance 99%
Quadrant Building Services

CEO Foreword

At Quadrant Building Services our delivery team has extensive experience delivering engineering services in critical environments with a focus on ensuring zero risk to our client’s ‘business-as-usual operations’.

We provide a turnkey solution that will take ownership of a project from cradle to grave providing a seamless transition from concept to handover.

Quentin Hemens
Director, Quadrant Building Services
Our Team

People Behind quadrant building services

Quentin Hemens


Quentin is a multi-skilled professional with a proven track record of delivering technical, mechanical projects in critical environments. With extensive experience in Data Centres and live client buildings with a focus on risk management and high-quality delivery.
Commencing his career and training with a world leading commercial refrigeration company and working in the marine, pharmaceutical and petrol chemical sectors then followed by a period with a specialist HVAC manufacturer delivering offshore projects in the North Sea. 

In the ten years prior to joining QBS Quentin was a Head of Projects in a global FM provider gaining experience in designing and delivering projects to major corporate clients with business-critical requirements. This has provided a valuable insight and understanding of the FM sector and roles and responsibilities and ensured that QBS is aligned with our client’s expectations and values.
Quentin’s role as director is to support the QBS project teams delivering projects within our client’s property portfolio and ensuring we are focused on client specific requirements and processes and operate as “one team” managing projects from cradle to grave with a single point of ownership.

He has responsibility for liaising between the QBS teams and client and providing technical support and guidance and critically specific site knowledge gained from previously delivered projects. Our success criteria with all projects is zero harm and no impact on Business as Usual and our methodology and safe systems of works are bespoke to the client’s requirements and business operations to achieve this.

Joe Hemens


Joe is a multi-skilled professional with a proven track record of delivering multi service projects including, mechanical, electrical, fabric and groundworks. Commencing his career as a qualified Quantity Surveyor for some of the industries leading M&E contractors, Joe trained and operated on large projects in the commercial, residential and healthcare sectors.

Since joining QBS, Joe has specialised in the design, tender and delivery of multi service projects within our clients property portfolio as well as overseeing the commercial department of the business and providing support and guidance to our clients and operatives.

Joe’s role as a director is to ensure that all works carried out for our clients are done so with quality, efficiency and commercial value as well as always implementing the highest standards of health and safety.

Want to join our team ?

Quadrant Building Services are always keen to meet with professionals to join the team. If you are a motivated individual who has experience in the FM and M&E sectors, please do get in touch with us.

Construction engineer's desk



Carry out feasibility studies and calculate budgets to assist business case. Agree the scope ensuring no grey areas and that the client’s expectations are met.




Carry out detailed design and provide cost certainty prior to project commencement.

Metalworking Engineer Job



Coordinate all required trades to ensure safe systems of work are used throughout whilst providing all the necessary documents to comply with CDM.

Engineer and architects at construction site



Ensure soft landing on completion by integrating our delivery team with the site maintenance team, giving staff training where necessary and issue a fully comprehensive O&M file.