Air Conditioning & Mechanical Ventilation

Air conditioning and mechanical ventilation determine how a building feels, how healthy its air is and how much it costs to run. TechMEPi Engineering designs and supervises energy-efficient HVAC systems for commercial, industrial, hospitality, residential and healthcare projects across Kenya, Uganda, South Sudan, Seychelles, Rwanda and Mauritius. Over 18+ years we have delivered everything from villa split and inverter installations to chilled-water plant serving large developments, including the specialised industrial HVAC systems we supervised on the D'Arros Island development in Seychelles.

Good HVAC engineering starts with an honest load. We calculate cooling and heating demand room by room, accounting for occupancy, solar gain, internal equipment and local climate data. Plant is then selected to match the real profile rather than a rule-of-thumb oversize. The result is stable temperatures, controlled humidity, proper air change rates and equipment that runs efficiently for its full design life.

Our Approach

Every significant system is modelled before it is built. We develop coordinated BIM models in Autodesk Revit and run clash detection against structure, electrical and plumbing services, so conflicts are resolved on screen rather than on site. For critical or complex spaces — server rooms, plant rooms, large open volumes — we use Autodesk CFD to simulate airflow, temperature distribution and thermal comfort, then refine the design before a single duct is fabricated.

We are technology-agnostic. Chilled-water plant, VRF, packaged units, split systems, dedicated fresh-air handling, kitchen and sanitary extract — the selection follows the building, its budget and its operating hours. Where the brief allows, we design for low energy: high-efficiency chillers, inverter-driven compressors, variable-speed pumps and fans, heat recovery and demand-controlled ventilation. In coastal and remote locations we specify corrosion-resistant materials, coatings and access arrangements so plant survives the environment it works in and can actually be maintained. Controls receive the same attention as plant: we define setpoints, schedules, interlocks and monitoring in a clear controls philosophy, so the system keeps running as designed long after handover — not just on commissioning day.

What We Deliver

Scope flexes from concept design through tender documentation to full site supervision. A typical engagement includes:

• Room-by-room cooling and heating load calculations with clearly stated design assumptions
• Complete ductwork and chilled-water pipework design, sizing and coordinated layouts
• Equipment schedules and performance specifications ready for competitive tender
• CFD airflow and thermal-comfort studies for critical spaces
• Construction supervision, installation inspections and commissioning witnessing
• As-built documentation, operating and maintenance manuals and structured handover

Standards and Compliance

Systems are designed to recognised international practice, including ASHRAE guidance on thermal comfort and ventilation for acceptable indoor air quality, with ductwork detailed to SMACNA construction standards and refrigerant pipework handled in line with published safety codes. Every design is prepared for approval by the relevant local authority in the country where it will be built. That discipline is how we keep performance predictable across six very different markets, from Nairobi high-rises to remote island resorts.