Mechanical Engineering
Engineered & Delivered
Mechanical Engineering & Building Services
At Lean Energy, we deliver fully coordinated mechanical building services – HVAC&R, fire protection, wet services, medical gases and specialist extraction – engineered for commercial, retail, educational, medical, industrial and residential projects across South Africa. Using Revit 3D MEP, HAP sizing, SANSCalc XA compliance and finite element verification, we engineer systems that are technically robust, regulation-compliant, and construction-ready. Our designs meet stringent SANS and Green Star requirements, minimise lifecycle costs, and are issued as fully coordinated, clash-free construction drawings. Precision engineered. Performance assured. Built to endure.
Rational fire design to SANS 10400, ensuring legal compliance and reliable system performance.
Sprinkler, pre-action & dry-pipe systems engineered for rapid response and high-risk environments.
Clean-agent gas suppression (FM-200 / Novec) for protecting sensitive equipment without water damage.
Advanced detection & aspiration systems for earlier fire identification and enhanced occupant safety.
Water treatment & filtration plants ensuring safe, high-quality water for all building uses.
Drainage & stormwater attenuation for improved building safety and flood mitigation.
Solar-ready hot water plants & ring mains offering reliable hot water with long-term energy savings.
Greywater harvesting & rainwater reuse to reduce water consumption and operational costs.
Clash-free Revit/BIM models that reduce on-site rework and speed up project delivery.
Prefabrication & detailed shop drawings ensuring accuracy and smoother installation.
FEM structural verification for safe and compliant PV mounting and mechanical structures.
Energy-efficient heat pumps & VRF systems that lower operating costs while maintaining consistent indoor comfort.
Smart zoning & BMS-integrated controls for better performance monitoring and reduced energy waste.
Chilled water & cold-storage solutions designed for precise temperature control in commercial and industrial environments.
Medical oxygen & vacuum systems designed to meet strict hospital reliability and safety standards.
AGSS systems for safe anaesthetic gas removal and improved clinical air quality.
HTM / SANS-certified installations guaranteeing regulatory compliance.
Solar PV + battery integration to reduce grid dependence and stabilise energy supply.
Heat pump retrofits that upgrade outdated systems for better efficiency and lower running costs.
VVVF elevator drive optimisation improving ride performance while cutting energy consumption.
ECSA - Engineering Council of South Africa: Pr Tech Eng
SAIRAC - South African Institute of Refrigeration and Airconditioning - Member
GBCSA - Green Star Accredited Professional - New Buildings
SAIMECHE - South African Institute of Mechanical Engineers - Member
Autocad 2D/3D MEP Design & Drawings
SANS Calc - SANS XA Energy Calculations For South African Climate
Hourly Analysis Program HVAC Heat Loads & Air-Conditioning Sizing
