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    Air source heat pump on the outside wall of a modern house

    M&E Engineering

    M&E Engineering Services

    Comprehensive Mechanical & Electrical engineering — HVAC, heating, air conditioning, ventilation and indoor air quality for residential, commercial, refurbishment, extension and new-build projects.

    Or call 020 8914 7824

    • Design
    • Installation
    • Maintenance

    Residential, commercial, refurbishment and new-build projects

    Free quote · 24-hour response

    Request a quote

    Tell us about your project and we'll be in touch within 24 hours.

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    What service are you interested in?

    Select one or more services

    No obligation · Free consultation

    Real Projects

    Watch Real Projects Come Together

    See the work behind the finish — on-site, walkthroughs and start to handover.

    4.9★ from 500+ reviews on Google, Houzz, Reviews.io & TrustATrader

    South Croxted Road · SE21Infill kitchen extension — from the air and on site
    Vitali Close · SW15Rear Extension — Vitali Close
    Wallington, Surrey · SM6Rear extension & full renovation
    Sunbury · BuildOn-site with the homeowner
    Colwith Road · BuildInside the build
    Woodend Road · E17Woodend Road — Extension complete
    Loft ConversionEdward — Loft conversion
    Real projectOn-site with LINX
    Real projectKitchen extension & porch — completed project
    Real projectRear extension & bathroom — completed project
    East HorsleyHome ExtensionView
    Arlington SquareFull RenovationView
    SudbourneLoft ConversionView
    Architectural walk-throughView

    Client Stories

    Hear From Our Clients

    Real projects, real results — straight from the people we've worked with.

    South Croxted Road · SE21Infill kitchen extension walkthrough
    Sunbury · CompleteFinished extension walkthrough
    Colwith Road · HammersmithRear extension & renovation

    How your project works

    Six clear stages, from first enquiry to completion — whether we design and build, or build from your drawings.

    For clients who need the whole project managed: design, planning, building regulations and construction, from initial enquiry through to completion.

    1. Step 1: Initial Consultation & Feasibility

      Timeline: 1–3 days

      Initial consultation to discuss requirements, ideas and budget.

    2. Step 2: Architectural Design & Drawings

      Timeline: 1–4 weeks

      Architectural drawings and proposed layouts.

    3. Step 3: Planning Permission

      Timeline: 6–12 weeks (estimated)

      Planning application preparation and submission.

    4. Step 4: Structural Engineering & Building Regulations

      Timeline: 1–3 weeks, depending on complexity

      Structural calculations and drawings.

    5. Step 5: Contract & Building Works

      Timeline: Typically 4–20+ weeks, depending on project type

      Begin construction and manage all building works.

    6. Step 6: Completion & Handover

      Final client walkthrough and handover.

    All timelines are indicative. Your project-specific schedule is confirmed before construction.

    Our services

    Mechanical & Electrical, Engineered Together

    We provide comprehensive M&E engineering services tailored to the needs of each building, ensuring compliance, quality and value — from a single air conditioning unit to the heating, cooling and ventilation of a whole development.

    Heating, ventilation and electrics work best when they are designed with the building rather than added to it. Our engineers size each system from heat loss and cooling load calculations, coordinate it with the architecture and the structure, then install, test and commission it.

    Because LINX designs and builds as one team, M&E sits inside the same programme as your extension, new build or commercial fit-out — one point of contact from the first drawings to handover.

    • Heating systems
    • Air conditioning
    • Ventilation
    • Indoor air quality
    • Commercial HVAC
    • Design & engineering
    • Maintenance & compliance
    Rooftop air handling and condenser units on a commercial building
    Engineering workstation with building services drawings on screen

    What we offer

    Heating, Cooling & Fresh Air

    The three systems every comfortable building depends on — designed, installed and maintained by one team.

    • Wall-hung boiler and heating pipework in a plant cupboard

      Heating Systems

      Heat pumps, boilers, underfloor heating and radiators — designed around the heat loss of the building and installed with smart controls.

      • Air source heat pumps
      • Gas boiler installations
      • Underfloor heating
      • Radiator installations
      • Smart heating controls
      • Plant room installations
      • Heating system upgrades
      • Heating maintenance and servicing
    • Wall-mounted air conditioning unit in a bright office

      Air Conditioning

      From a single wall-mounted unit in a home office to VRF systems serving whole commercial floors, with servicing and repairs after handover.

      • Split air conditioning systems
      • Multi-split systems
      • VRF/VRV systems
      • Commercial air conditioning
      • Residential air conditioning
      • Ceiling cassette units
      • Wall-mounted units
      • Ducted air conditioning systems
      • Air conditioning servicing
      • Air conditioning repairs
      • Air conditioning maintenance
    • Ceiling-mounted ventilation grilles and diffusers in a commercial interior

      Ventilation

      Whole-house heat recovery, extract and supply systems, kitchen extraction and the ductwork, fire and smoke dampers that go with them.

      • Mechanical Ventilation with Heat Recovery (MVHR)
      • Positive Input Ventilation (PIV)
      • Extract ventilation systems
      • Supply and extract ventilation
      • Kitchen extraction systems
      • Bathroom extraction
      • Commercial ventilation systems
      • Heat recovery ventilation
      • Fresh air systems
      • Ductwork design and installation
      • Fire and smoke dampers

    Specialist services

    Air Quality, Commercial Plant & Compliance

    Beyond the core systems: cleaner indoor air, commercial HVAC and building management, the engineering behind every installation, and the maintenance that keeps it running.

    Indoor Air Quality

    • Air filtration systems
    • HEPA filtration
    • Air purification systems
    • Humidity control
    • Dehumidification systems
    • Carbon dioxide (CO₂) monitoring
    • Indoor air quality assessments

    Commercial HVAC

    • Office HVAC systems
    • Retail HVAC installations
    • Restaurant ventilation
    • Warehouse heating and cooling
    • Industrial ventilation
    • Plant room design and installation
    • BMS (Building Management System) integration

    Design & Engineering

    • HVAC design
    • Heat loss and cooling load calculations
    • System sizing
    • Energy-efficient HVAC solutions
    • Building Regulations compliance
    • Part L compliance
    • CIBSE-compliant design
    • M&E coordination
    • Commissioning and testing

    Maintenance & Compliance

    • Planned preventative maintenance (PPM)
    • Reactive maintenance
    • System inspections
    • Fault finding and diagnostics
    • Performance optimisation
    • Filter replacement
    • Refrigerant leak testing
    • Commissioning certificates
    • O&M manuals
    • Warranty support

    Why choose LINX

    Our Commitment on Every Project

    01

    Expert Team

    Skilled engineers with extensive experience and compliance knowledge, working alongside our in-house architects and build teams.

    02

    Quality Assured

    Rigorous quality control processes ensuring the highest standards, with every system tested and commissioned before handover.

    03

    On Time, On Budget

    Proven track record of delivering projects within timescales and budgets, with a clear quote agreed before work starts.

    FAQs

    Common questions

    Ask us something else

    Yes. We carry out heat loss and cooling load calculations, size the systems, produce CIBSE-compliant designs and coordinate the mechanical and electrical services with the rest of the build — then install, test and commission them.

    Get started today

    Have an M&E Project in Mind?

    Tell us about your project and we'll be in touch within 24 hours. For the drawings on their own, see our M&E drawings service.

    • Free consultation
    • No obligation
    • Design, installation and maintenance
    • Residential and commercial