Building
Services Engineering
Consultancy

Delivering Integrated, Sustainable & Intelligent Building Systems across East Africa

πŸ”§ Mechanical ⚑ Electrical πŸ’§ Plumbing πŸ”₯ Fire Protection
Who We Are

Holistic Engineering Solutions

HES is a premier building services engineering consultancy specializing in the full spectrum of Mechanical, Electrical, Plumbing, and Fire Protection (MEPF) systems. Founded on the principle that great buildings require deeply integrated and intelligently designed services, HES delivers engineering solutions that are technically rigorous, cost-effective, and aligned with the highest sustainability standards.

We partner with architects, developers, contractors, and facility owners to transform visions into built realities β€” from concept design through to commissioning and beyond. At HES, we believe that buildings should perform as well as they look β€” efficient, resilient, comfortable, and safe for all who occupy them.

Integrity

Highest professional standards and transparency in all our dealings.

Excellence

Technical mastery that exceeds expectations in quality and precision.

Innovation

Emerging technologies for smart, future-ready building systems.

Sustainability

Designing with the planet in mind β€” minimizing energy consumption.

Our Mission

To deliver innovative and sustainable building services engineering that enhances the functionality, efficiency, and safety of every built environment we touch.

Our Vision

To be the leading MEPF consultancy in East Africa, recognized for technical excellence, holistic thinking, and a commitment to shaping the built environment of the future.

Our Purpose

To create buildings that are safe, efficient, and purposeful β€” positively impacting communities, economies, and the environment for generations to come.

What We Do

Full-Spectrum MEPF Services

Covering all stages of a project lifecycle β€” from feasibility and concept design through detailed design, construction supervision, and commissioning.

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Mechanical Engineering

Comprehensive HVAC and mechanical services design for all building types, from central plant systems to specialized critical environments.

  • Design of central plant systems: chillers, AHUs, FCUs, VRF/VRV systems
  • Ventilation design for all space types including clean rooms and critical environments
  • Energy modeling and thermal load analysis
  • Pressurization systems for stairwells, lift shafts, and refuge areas
  • Building Management System (BMS) integration and controls philosophy
  • Lifts, escalators and vertical transportation systems
  • Compressed air, medical gas, and vacuum systems

HVAC Design

  • Chiller plants and cooling towers
  • Variable refrigerant systems (VRF/VRV)
  • Air handling units & fan coil units
  • Thermal load analysis & energy modeling

Other Mechanical Services

  • Hydronic heating and district cooling
  • Refrigeration and cold storage systems
  • Kitchen ventilation and exhaust systems
  • Medical gas and vacuum systems
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Electrical Engineering

Complete power systems and ELV design, from LV/MV distribution to smart building integration and renewable energy solutions.

  • LV/MV power distribution system design (11kV, 33kV switchgear, transformers)
  • Standby power systems: diesel generators and UPS systems
  • Power factor correction and harmonic analysis
  • Load scheduling, cable sizing and protection coordination
  • Earthing, lightning protection and surge protection systems
  • Interior and exterior lighting design with DIALux/Relux analysis
  • Solar PV and renewable energy systems integration

Power Systems

  • LV/MV distribution design
  • Generator & UPS systems
  • Earthing & lightning protection
  • Power factor correction

Lighting & ELV Systems

  • Emergency & escape lighting (BS EN 1838)
  • Structured cabling & ICT infrastructure
  • CCTV, access control & intruder alarms
  • Nurse call, PA & AV systems
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Plumbing & Drainage

Sustainable water management strategies from cold and hot water supply to greywater recycling and rainwater harvesting.

  • Cold and hot water supply systems design (pressurized and gravity)
  • Sanitary, foul, and rainwater drainage systems
  • Greywater recycling and rainwater harvesting systems
  • Water treatment and purification systems
  • Booster pumping and pressurization systems
  • Sustainable water management strategies and green building compliance

Water Supply

  • Pressurized & gravity hot/cold systems
  • Booster pumping systems
  • Water treatment & purification

Sustainability

  • Greywater recycling systems
  • Rainwater harvesting
  • Green building compliance
  • Water management strategies
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Fire Protection Engineering

Active and passive fire protection systems ensuring life safety and code compliance across all building types and occupancies.

  • Automatic sprinkler systems (wet pipe, dry pipe, pre-action, deluge)
  • Foam, gaseous and mist suppression systems
  • Fire hydrant and hose reel systems
  • Fire detection and alarm systems
  • Emergency voice communication and evacuation alarm systems
  • Smoke control and management systems
  • Fire risk assessments and safety audits

Active Fire Protection

  • Automatic sprinkler systems
  • Foam, gaseous & mist suppression
  • Fire hydrant & hose reel systems
  • Fire detection & alarm systems

Passive & Fire Engineering

  • Smoke control & management
  • Fire risk assessments & audits
  • Third-party review & peer checking
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Additional Consultancy

Beyond design β€” technical due diligence, project management, and smart building consultancy to support your assets throughout their lifecycle.

  • M&E condition surveys and compliance audits
  • Asset assessments for acquisitions and investments
  • M&E contract administration and construction supervision
  • Commissioning management and O&M documentation
  • IoT integration and BMS/SCADA design
  • Smart metering and building automation consultancy

Technical Due Diligence

  • M&E condition surveys
  • Compliance audits
  • Asset assessments for acquisitions

Smart Buildings

  • IoT integration
  • BMS/SCADA design
  • Smart metering systems
  • Building automation consultancy
Our Expertise

Sectors We Serve

Specialist knowledge across a wide array of building sectors, enabling us to tailor our engineering approach to unique performance requirements.

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Commercial & Offices

  • Grade A commercial towers
  • Mixed-use developments
  • Business parks & tech campuses
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Healthcare

  • Hospitals & specialist clinics
  • Diagnostic imaging centers
  • Pharmaceutical & lab facilities
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Hospitality & Leisure

  • Hotels & resorts (3–5 star)
  • Conference & event centres
  • Sports & recreation facilities
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Residential

  • High-rise & mid-rise apartments
  • Gated residential estates
  • Affordable housing developments
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Education

  • Universities & polytechnics
  • Schools & research centres
  • Libraries & learning hubs
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Industrial & Logistics

  • Manufacturing plants & factories
  • Data centres & server rooms
  • Cold storage & warehouses
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Retail & F&B

  • Shopping malls & retail centres
  • Supermarkets & food courts
  • Restaurants & commercial kitchens
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Government & Civic

  • Government ministries & embassies
  • Courts, prisons & security facilities
  • Museums & cultural centres
Our Process

How We Deliver

A structured, client-centred project delivery methodology ensuring quality, transparency, and value at every stage.

01

Briefing & Feasibility

Understand project goals, budget, programme requirements, and operational needs. Site assessments and MEPF feasibility appraisals.

02

Concept Design

Develop engineering strategies, system options, and produce concept drawings. Energy strategies and sustainability targets established.

03

Technical Design

Fully detailed MEPF design packages including calculations, specifications, schedules, and BIM models. Full coordination with design team.

04

Procurement

Prepare tender documentation, evaluate contractor bids, and advise on procurement strategy ensuring design intent compliance.

05

Construction Admin

Regular site inspections, review and approve shop drawings and submittals, RFI responses, and compliance monitoring.

06

Commissioning

Witness commissioning activities, review O&M manuals and as-built drawings, support the client through handover.

07

Post-Occupancy

Post-occupancy evaluations, energy performance monitoring, and ongoing technical advisory to optimise building operations.

Our People

Meet the Team

Highly qualified MEPF engineers, project managers, and technical specialists β€” our greatest asset.

DK

Eng. Diana Keter

Principal Engineer

Professional Engineer with 15+ years of experience in building services in East Africa and beyond. Sets the technical and strategic direction of the firm.

PE EBK CMIEK MUIPE BSc Mechatronics
FS

Eng. Florida Simiyu

Senior Mechanical Engineer

14 years of experience in mechanical engineering design and construction supervision. Expert in HVAC design, water systems, drainage, and fire protection.

PE EBK CMIEK MSc Energy BSc Mech Eng
JS

Eng. Job Sisungo

Senior Electrical Engineer

15+ years in electrical services design and construction supervision. Expert in power distribution, lighting, earthing, AFDS, ICT, and security systems.

PE EBK CMIEK IET Member BTech Elec Eng
RM

Rogers Mutai

Operations Coordinator

15+ years delivering complex engineering programs across aviation, manufacturing, and AI-driven environments. Ensures seamless workflows and optimized resources.

Google PMP Agile AI Automation BSc Mechatronics
Our Advantage

Why Choose HES

What sets us apart from single-discipline firms β€” integrated expertise, local knowledge, and global standards.

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Truly Integrated MEPF Expertise

Unlike single-discipline firms, HES delivers M, E, P and F from one team, ensuring exceptional coordination and eliminating the risks of poor interface management.

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Sustainability at the Core

Sustainability is not an add-on for us. Every system we design is evaluated against energy efficiency, water conservation, and lifecycle cost targets.

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Digital-First Delivery

We leverage BIM, cloud collaboration platforms, and energy simulation tools to deliver higher quality, more coordinated designs faster.

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Experienced & Accredited Team

Our engineers are registered Professional Engineers affiliated with EBK and IEK, bringing proven expertise and professional accountability to every project.

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Responsive & Commercially Aware

We understand that time and budget are critical. We design to budget, flag risks early, and always look for value engineering opportunities without compromising quality.

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Local Knowledge, Global Standards

We apply internationally recognised codes (BS, IEC, ASHRAE, NFPA, CIBSE) adapted to the Kenyan and East African regulatory and climatic context.

Tools & Standards

Design Capability

State-of-the-art software tools combined with internationally recognised codes and standards.

Software & Tools

BIMAutodesk Revit MEP
CADAutoCAD MEP
HVACCarrier HAP / Trace 700
LightingDIALux / Relux
EnergyEnergyPlus / IES-VE
ProgrammeMS Project / Primavera

Codes & Standards

BS / BS ENBritish Standards (Electrical & Mechanical)
IEC 60364Electrical Installations
ASHRAE90.1 / 55 / 62.1 (MEP)
NFPAFire Protection Standards
CIBSEBuilding Services Guides
KenyaKenya Building Code / KEBS / ERC
GreenEDGE / LEED / BREEAM
Get In Touch

Let's Build Together

Ready to discuss your next project? Our team is here to provide expert MEPF consultancy across Kenya and East Africa.

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Location

Nairobi, Kenya
Service Area: Kenya & East Africa

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Registration

Holistic Engineering Solutions Ltd
No. PVT-EEZUJB7 | Incorporated March 2026

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