Building Services Engineers for M&E, Sustainability and Net Zero
Who we are
KJ Tait are chartered building services engineers with over fifty years of experience in delivering performance led design. We focus on engineering solutions that work in practice, combining mechanical and electrical expertise with deep capability in energy and carbon modelling, commissioning and building performance diagnostics.
Our culture is centred on technical integrity, evidence based decision making and long term collaboration with clients and design teams. Guided by recognised quality and environmental standards, we apply a rigorous and responsible approach to ensure buildings perform as intended throughout their life.
Latest
insights
Engineering perspectives, project learnings and sustainability thinking across the business
UKNZCBS Verification in Existing Buildings
MEES for non domestic property: EPC band E explained
Latest
news
Scottish Design Awards 2026 - Shortlist
Engineering design, modelling and advisory services for high‑performing buildings
KJ Tait are chartered building services engineers providing mechanical and electrical design, sustainability consultancy and net zero carbon advisory services across the UK. Our team specialise in thermal and energy modelling through IES VE, TM54 operational assessments, decarbonisation pathways and building performance diagnostics that support compliant, low‑energy and future‑ready buildings.
We work closely with architects, developers and estates teams to deliver robust engineering solutions that are technically credible, commercially realistic and aligned with long‑term asset performance.
Where we deliver the most value
Our highest impact capabilities that deliver measurable value in practice. Clear pathways, robust modelling and delivery that stands up in operation.
Design Engineering
Mechanical and electrical design for new build and refurbishment. Robust, compliant and maintainable solutions that perform in use.
Explore design engineeringFacilities Management
Technical FM to maintain performance in operation. Maintenance, diagnostics and fine tuning informed by our design and sustainability teams.
See our FM approachEnergy & Carbon Modelling
TM54 and IES VE modelling to set realistic targets, right size systems and de-risk delivery. A clear route from concept to operational performance.
Explore our modellingWhat we do
M&E / MEP Engineering
Mechanical, electrical and public health design for new build and refurbishment projects aligned with low-carbon and compliance needs.
Explore design engineeringSustainability & Net Zero
Decarbonisation strategies, net zero pathways, whole life carbon support and sustainability reporting.
See sustainability servicesThermal & Energy Modelling
IES VE modelling, TM54 operational energy assessments, overheating analysis and building physics expertise.
Explore modellingCommercial EPCs
Accredited EPC assessments and improvement pathways for commercial buildings including offices and mixed-use assets.
See EPC servicesFacilities Management
FM advisory, asset registers, planned preventive maintenance, lifecycle modelling, compliance and performance optimisation.
See our FM approachPlanning & Local Policy Support
Energy strategies, overheating assessments and sustainability inputs for planning submissions across the UK.
Explore planning support
Where We Work
We deliver building services engineering, M&E consultancy and sustainability support across the UK through our teams in Aberdeen, Cambridge, Edinburgh, Glasgow, London and Manchester.
Our engineers work on projects of all scales, providing local knowledge backed by national expertise to support clients throughout every stage of design, delivery and building performance.
Frequently Asked Questions
What MEP consultancy services does KJ Tait Engineers provide?
KJ Tait are chartered building services engineers providing mechanical, electrical and public health (MEP) design for new build and refurbishment projects across the UK. Our services include decarbonisation strategies, net zero pathways, whole life carbon support, IES VE energy modelling, TM54 operational energy assessments, EPC improvement pathways, FM advisory, and sustainability inputs for planning submissions. We work across every RIBA stage, from feasibility through to post occupancy performance verification.
Which sectors does KJ Tait work in?
We work across offices, science and technology, healthcare, higher education, heritage, mixed use, residential, retail, leisure and industrial sectors. We have particular depth in complex and low energy buildings, including laboratory and life sciences facilities, NHS and healthcare estates, universities, and institutional commercial property portfolios. Our FM frameworks cover commercial, retail, education and science sector estates nationally.
How does KJ Tait support MEES compliance and EPC improvement for commercial landlords?
KJ Tait provides accredited EPC assessments and practical improvement pathways for commercial buildings including offices and mixed-use assets. Current MEES regulations prohibit letting F or G-rated non-domestic premises, and further tightening toward EPC B is under active government consultation. We create phased upgrade plans that are commercially realistic, prioritising fabric, controls and low-carbon heat options, and model the impact on asset value and operational energy before any work begins.
What is KJ Tait's approach to net zero building design?
We integrate mechanical and electrical engineering with energy and carbon modelling, commissioning and building performance diagnostics to ensure buildings perform as designed in operation, not just on paper. Our teams use IES VE modelling and TM54 style operational assessments to set realistic targets, then plan commissioning and post-occupancy checks so those targets are actually met. We compare predicted and metered performance after handover, diagnose any gap and feed lessons back into design.
Is KJ Tait a B Corp, and what does that mean for clients?
Yes. KJ Tait is a certified B Corporation, independently assessed for social and environmental performance, governance and transparency. For clients, this means our commitment to sustainability is not limited to the buildings we design, it runs through how we operate as a business. We balance environmental responsibility, social impact and commercial performance in every engagement.
Which UK cities does KJ Tait Engineers operate from?
KJ Tait has six offices across the UK: Aberdeen (42 Union Terrace, AB10 1NP), Cambridge (4 Hills Road, CB2 1JP), Edinburgh (4 Rothesay Place, EH3 7SL), Glasgow (15 Woodside Terrace, G3 7XH), London (11–15 Emerald Street, WC1N 3QL), and Manchester (Canada House, Chepstow Street, M1 5FW). Each office serves its local and regional market with full MEP, sustainability and FM capability backed by national expertise.