ETERNAL ENGINEERING

Full-Spectrum MEP &
Sustainability Services

From concept design to construction stage, Eternal Engineering provides integrated mechanical, electrical, and sustainability consultancy services. Our team delivers coordinated, compliant, and cost-effective engineering solutions across all building types.

Mechanical Engineering Services

We design and optimise mechanical systems that ensure buildings are comfortable, energy-efficient, and compliant. Our mechanical team works across all project stages — from feasibility through to construction documentation.

Sectors Covered

Residential Commercial Healthcare Education Data Centres Hospitality Industrial

  • HVAC System Design

    Heating, cooling, and ventilation systems designed to CIBSE standards, including full load calculations

  • Heating & Cooling Load Calculations

    Dynamic thermal modelling to right-size plant and equipment

  • Ventilation Design

    Natural, mechanical, and hybrid ventilation strategies in line with Building Regulations Part F

  • Plumbing & Drainage Design

    Hot and cold water services, drainage layout, and sanitary installations

  • Heating/Cooling & Ventilation Drawings

    Detailed coordinated drawings for tender and construction

  • MEP Coordination

    Ensuring seamless integration of mechanical, electrical, and plumbing services across disciplines

  • Detailed Mechanical Design Documentation

    Full specifications, schedules, and technical reports

  • Commissioning Support

    Guidance during installation and commissioning phases

Electrical Engineering Services

Our electrical engineering team delivers comprehensive electrical design solutions — from initial concept through to detailed construction drawings. We ensure systems are safe, efficient, and fully compliant with UK and Irish regulations.

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Feature Service: EV charging is a fast-growing service area. We provide future-proof infrastructure design for residential and commercial developments.

Standards & Compliance

BS 7671 (18th Ed) BS 5839 BS 5266 Part M (Accessibility)

  • Electrical Distribution Design

    LV distribution boards, substation design, and cable sizing

  • Lighting Design

    Interior and exterior lighting layouts, lux level calculations, emergency lighting

  • Fire Alarm System Design

    L1–L5 fire detection and alarm systems to BS 5839

  • Emergency Lighting Design

    Escape route lighting in line with BS 5266

  • Security System Design

    CCTV, access control, and intruder alarm integration

  • Small Power & Data

    Power outlets, IT, and communications infrastructure

  • Detailed Electrical Drawings & Specifications

    Single line diagrams, schematic drawings, panel schedules

  • Power Quality Consultation

    Load management analysis and solutions

  • Earthing & Lightning Protection

    Design in accordance with BS EN 62305

  • EV Charging Infrastructure

    Design for residential and commercial EV charging

Sustainability & Green Building

Sustainability is at the heart of everything we do. We help clients design buildings that reduce carbon footprint, achieve green building certifications, and comply with increasingly stringent UK and Irish environmental regulations.

Regulations We Work To

Part L 2021 (UK) Part L 2022 (IRE) Part O CIBSE TM52/TM59 BB101 HTM

  • Net Zero Carbon Strategy

    Roadmaps and plans to achieve Net Zero Carbon Building goals

  • BREEAM Assessment Support

    Technical input for BREEAM credits including Ene 01, Ene 04, and thermal comfort criteria

  • LEED Energy Credits

    Supporting LEED certification through energy analysis and compliance documentation

  • Thermal Comfort Analysis

    Overheating assessments to CIBSE TM52, TM59, Part O, BB101, HTM

  • Overheating Assessment

    Dynamic simulation for residential and non-residential buildings

  • Operational Energy Calculations

    TER/BER and DER/TER compliance calculations

  • Building Energy Compliance

    BRUKL (UK Building Regulation Part L 2021) and BRIRL (Irish Building Regulation Part L 2022)

  • Carbon Reduction Strategies

    Embodied carbon analysis and whole-life carbon planning

  • Passive Design Advice

    Orientation, fabric performance, natural ventilation, and daylighting strategies

Energy Modelling & Simulation

Accurate energy modelling is essential for compliant, low-carbon building design. Using IES VE — one of the industry's leading dynamic simulation tools — we provide detailed energy analysis that informs design decisions and satisfies regulatory requirements.

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Project Highlight: We routinely model complex building geometries to ensure they meet exact client specifications before any real-world materials are used.

Software Used

IES VE SBEM / SAP Autodesk Revit AutoCAD

  • Dynamic Thermal Modelling (DTM)

    Full building energy simulation using IES VE

  • Building Energy Compliance Reports

    BRUKL/BRIRL reports for Building Regulations Part L submission

  • Heating & Cooling Load Calculations

    CIBSE-compliant peak loads for plant sizing

  • Overheating Risk Assessments

    TM52 (commercial) and TM59 (residential) simulations

  • BREEAM & LEED Energy Credits

    Modelling for Ene 01 and equivalent LEED credits

  • Net Zero Carbon Feasibility

    Modelling renewable energy systems (PV, heat pumps, ASHP, GSHP)

  • Fabric Energy Efficiency

    SAP / SBEM calculations for compliance

  • Daylight & Sunlight Analysis

    Where required for planning or wellbeing assessments

  • Parametric Studies

    Comparing design options to optimise energy performance

Ready to discuss your requirements?

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