Building Services Consultants 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
London Plan: Polices that Impact on Sustainable Building Design
Low GWP Refrigerants for UK VRF and Heat Pumps
Latest
news
Heat networks 2026: HNTAS and Ofgem
Apex, Tribeca, Camden
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.
Featured expertise
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 in‑use 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.