Sustainable Building Services and Energy Consultancy

KJ Tait are Building Services Engineers, Energy Consultants and Facilities Engineers with offices across the UK. We deliver sustainable building design by integrating all three disciplines through every RIBA stage.

Our approach starts with low-energy strategies and uses real-world feedback from buildings in operation. This ensures practical, efficient designs that reduce energy use and improve comfort.

We focus on closing the performance gap so buildings work as intended. By combining design, energy and facilities expertise, we deliver long-term value, support low-carbon goals and create buildings that last. Collaboration is at the heart of everything we do.

Who We Are

UK-Based Building Services Engineers with Integrated Expertise

We are engineering design consultants who specialise in sustainable buildings in the UK with offices in Aberdeen, Cambridge, Edinburgh, Glasgow, London and Manchester.  We offer a complete service from project inception to operation to close the performance gap in buildings.  We use feedback from operational data to better inform our future designs.  

Consistent Delivery Across All Offices

Our team operates as one business across our offices.  This means our clients get the same high standard of service from every office.  Each core discipline: engineering design, energy consultancy and facilities management is part of one team.  Because we share knowledge across locations, we respond quickly and work efficiently.

Recognised Standards and Professional Affiliations

KJ Tait are accredited to ISO 9001, ISO 14001 and ISO 45001.  We are registered with Constructionline and Safe Contractor.  We are also members of the UK Green Building Council.  Our staff belong to respected organisations like CIBSE, IET, IWFM, BCO, the Energy Institute and the UK Science Parks Association.  

What We Do

KJ Tait deliver three core services: engineering design, energy consultancy and facilities management. Our team of Building Services Engineers, Energy Consultants and Facilities Engineers work together to combine technical knowledge with practical experience.

Designing complex, low-energy buildings, including science and technology projects, we apply strategies that cut emissions and achieve sustainability goals.

Our facilities engineers monitor building performance, manage systems and provide feedback to improve future designs. This ensures buildings are efficient, easy to maintain and deliver long-term value.

We also offer specialist services such as BREEAM, daylighting analysis, NABERS UK ratings and EPC assessments, helping clients achieve low-carbon, high-performance buildings.