--- title: "BMS Electrical Installation London: Certified Partner Electricians | BIAV Controls" description: "BMS electrical installation across London via certified partner electricians (NICEIC/NAPIT/ECA/ECS/CSCS). 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We do not claim these credentials in-house." } }, { "@type": "Question", "name": "Do you provide test certificates?", "acceptedAnswer": { "@type": "Answer", "text": "Yes, test-and-inspection certification is issued at completion, in line with the credentials the partner electrician holds." } }, { "@type": "Question", "name": "Can you handle the full electrical scope on a BMS project?", "acceptedAnswer": { "@type": "Answer", "text": "Yes, containment, cabling, terminations and test-and-inspection can be delivered end-to-end as part of a full BMS project package." } }, { "@type": "Question", "name": "How is the electrical installation priced?", "acceptedAnswer": { "@type": "Answer", "text": "Priced per project: driven by cable counts, containment routes, termination counts and site conditions. We don't publish 'from' prices; we quote on application." } }, { "@type": "Question", "name": "What warranty covers the electrical work?", "acceptedAnswer": { "@type": "Answer", "text": "One-year workmanship warranty on the electrical installation carried out under our project scope, alongside the underlying manufacturer warranties." } }, { "@type": "Question", "name": "Can you deliver out-of-hours?", "acceptedAnswer": { "@type": "Answer", "text": "Yes, out-of-hours electrical delivery is common on occupied commercial, healthcare and residential sites." } }, { "@type": "Question", "name": "Do you provide as-built cable schedules?", "acceptedAnswer": { "@type": "Answer", "text": "Yes, cable schedules and containment drawings are maintained live during the works and handed over as as-built at completion." } }, { "@type": "Question", "name": "Do you cover metering electrical scope?", "acceptedAnswer": { "@type": "Answer", "text": "Yes, CT installation, meter wiring and pulse/Modbus cabling for sub-metering deployments." } } ] } ] --- 52 Selah Drive, Swanley, BR8 7WD 24/7 phones answered · 2hr SLA response [accounts@biav-controls.co.uk](mailto:accounts@biav-controls.co.uk)[](https://www.instagram.com/biav_controls)[](https://www.linkedin.com/in/bradley-thomas-62a0901b6/) [![BIAV Controls](/__l5e/assets-v1/aa32365b-edd5-4700-8950-51fcbb3a024c/biav-logo.webp)](/) Services Service Areas [About](/about) Our Work [Contact](/contact) [07782 247022](tel:+447782247022)[Request a Quote](/contact) ![Certified BMS electrical installation with dressed containment, BACnet controllers and MCB protection](/assets/hero-electrical-installation-CumBKLwl.jpg) BMS Electrical Installation · London & the South East # Certified electrical installation for BMS projects across London, delivered by our partner electricians. Containment, cabling and terminations delivered by partner electricians holding NICEIC, NAPIT, ECA, ECS and CSCS credentials, worded transparently, not implied in-house. [Request a Quote](/contact) [Call 07782 247022](tel:+447782247022) 13+ years hands-on BMS experience 2-hour on-site SLA for contract clients 1-year workmanship warranty 1. [Home ](/) 2. [Services](/services) 3. BMS Electrical Installation 13+ Years hands-on BMS experience 2 hr On-site SLA for contract clients 24/7 Phones answered, every day £20M Public liability insurance BS EN 61439 Panel build standard Service overview ## BMS Electrical Installation, explainedwithout the marketing gloss. What it is BMS electrical installation is the containment, cabling, terminations and testing that physically connects a Building Management System to the plant it controls, from panel to controller to field device, plus power distribution and safety earthing. Who it's for M&E contractors, developers, landlords, healthcare estates and end-clients whose BMS project needs an electrical installation carried out to formal certification standards, not by a general handyman. When you need it Any new BMS installation; any refurbishment involving new sensors, actuators, panels or controllers; and any legacy-system replacement that touches existing containment, cabling or terminations. Why professional matters The electrical installation is where a BMS project either becomes reliable for a decade or becomes a source of intermittent faults for its whole life. Segregation, earthing, labelling and certification aren't optional extras. The cost of ignoring it ## What happens whenthis gets left alone. Poor electrical installation is the invisible tax paid every day for the life of a BMS. Risks & cost escalation - Poor low-voltage / mains segregation induces noise onto data cables: years of unexplained comms faults follow. - Uncertified terminations fail insurance, landlord and building-control audits and can force full re-work at handover. - Poor labelling turns every future service visit into a treasure hunt, cost eventually paid by the client in service hours. - Missing test certificates leave the client unable to prove compliance at insurer or MEES audits. - Bad earthing on data cabling causes silent, intermittent faults that no one attributes to the electrics. Common mistakes we see - × Letting the M&E contractor's general electrician terminate BMS field devices without a controls engineer directing the work. - × No dedicated data-cable segregation: power and controls sharing the same containment. - × No test-and-inspection certification issued at handover. - × No as-built cable schedule or labelling: the building starts life uncertified. Our process ## How we deliverbms electrical installation. 1. Step 01 Design co-ordination Cable routing, containment, segregation, earthing and test-and-inspection strategy agreed with the controls design before mobilisation. 2. Step 02 First-fix containment Containment installed by partner electricians with proper segregation between mains and data services. 3. Step 03 Cabling Data and power cabling pulled, dressed and labelled: cable schedules maintained live during the works, not written after the fact. 4. Step 04 Terminations Field-device and panel terminations by certified electricians to schematic: every termination on the schedule signed off. 5. Step 05 Test & inspection Test and inspection certification issued in accordance with the regulations the partner electrician's credentials cover. 6. Step 06 As-built handover As-built cable schedules, containment drawings and test certificates handed over with the BMS O&M pack. Outcomes you can measure ## What the right bms electrical installationactually gives you. Certified partner electricians NICEIC / NAPIT / ECA / ECS / CSCS credentials as applicable, worded transparently rather than implied in-house. Proper segregation Mains and data services routed with proper segregation from day one, no induced-noise faults later. Full cable schedule Cable numbers, routes and terminations documented and handed over: the client can service and extend without guesswork. Formal test certificates Test-and-inspection certification handed over at completion: evidence for insurer and audit review. Controls-led co-ordination The electrical scope is co-ordinated by the controls engineer who will commission the system, with no interface gaps. One-year workmanship warranty Standard workmanship warranty applies to the electrical installation carried out under our project scope. Scope & specifics ## Detail thatbuyers ask about. Electrical scope varies by project type and how it is procured relative to the main M&E package: Materials, methods & standards Partner electricians hold NICEIC/NAPIT/ECA/ECS/CSCS credentials as applicable. Panels tie back to BS EN 61439 build. £20M PL, £10M EL, £10M PI insurance sits behind the delivery. Residential vs commercial Residential and communal-plant work leans heavily on out-of-hours delivery and minimising disruption to occupied blocks; commercial and healthcare electrical scope is typically driven by formal segregation, labelling and test-certificate discipline. Full BMS electrical package Containment, cabling, terminations and test-and-inspection carried out end-to-end as part of a full BMS project. Panel-to-controller sub-package Focused sub-package for the controls-side works within a larger M&E contractor's electrical package. Retrofit re-termination Re-termination of legacy field devices onto new controllers and panels during a phased BMS replacement. Sub-metering electrical scope CT installation, meter wiring, pulse and Modbus RTU cabling for Circutor, Janitza, Eastron and Hobut sub-metering. Healthcare & critical-environment scope Electrical scope for hospital plantrooms and critical environments, with strict segregation, labelling and out-of-hours delivery. Wireless / IoT sensor deployments Gateway installation, gateway-power provision and interface cabling for ELSYS, Enless, Milesight, Watteco and Thermokon devices. Related services [BMS Installation](/services/bms-installation) [BMS Panel Manufacturing](/services/bms-panel-manufacturing) [BMS Projects](/services/bms-projects) Coverage ### Delivered across London & the South East Based in Swanley on the London/Kent border. Engineers cover the City, the South East London boroughs, north-west Kent and beyond. [Swanley ](/service-areas/swanley)[Dartford ](/service-areas/dartford)[Sevenoaks ](/service-areas/sevenoaks)[Orpington ](/service-areas/orpington)[Sidcup ](/service-areas/sidcup)[Bexley ](/service-areas/bexley)[Bromley ](/service-areas/bromley)[Greenwich ](/service-areas/greenwich)[Croydon ](/service-areas/croydon)[Gravesend ](/service-areas/gravesend)[South East London ](/service-areas/south-east-london)[City of London ](/service-areas/city-of-london)[Canary Wharf ](/service-areas/canary-wharf) FAQs ## BMS Electrical Installationquestions, answered. Anything not covered here? Call us on [07782 247022](tel:+447782247022). Pricing BMS work is bespoke and project-based; pricing is **quote on application**, issued in writing after a site or specification review. ### Are the electricians in-house? + No, worded transparently: electrical installation is delivered via partner electricians who hold NICEIC/NAPIT/ECA/ECS/CSCS credentials as applicable. We do not claim these credentials in-house. ### Do you provide test certificates? + Yes, test-and-inspection certification is issued at completion, in line with the credentials the partner electrician holds. ### Can you handle the full electrical scope on a BMS project? + Yes, containment, cabling, terminations and test-and-inspection can be delivered end-to-end as part of a full BMS project package. ### How is the electrical installation priced? + Priced per project: driven by cable counts, containment routes, termination counts and site conditions. We don't publish 'from' prices; we quote on application. ### What warranty covers the electrical work? + One-year workmanship warranty on the electrical installation carried out under our project scope, alongside the underlying manufacturer warranties. ### Can you deliver out-of-hours? + Yes, out-of-hours electrical delivery is common on occupied commercial, healthcare and residential sites. ### Do you provide as-built cable schedules? + Yes, cable schedules and containment drawings are maintained live during the works and handed over as as-built at completion. ### Do you cover metering electrical scope? + Yes, CT installation, meter wiring and pulse/Modbus cabling for sub-metering deployments. Request a quote ## Send us the spec.We'll come back with a fixed scope. Every bms electrical installation enquiry is scoped and quoted in writing: no 'from' prices, no hidden variations, no proprietary lock-in. Response within one working day, sooner for anything urgent. [Call 07782 247022](tel:+447782247022)[Full contact details](/contact) 24/7 phones answered £20M PL / £10M PI cover 1-year workmanship warranty BMS Electrical Installation enquiry Tell us about the site. ![BIAV Controls](/__l5e/assets-v1/aa32365b-edd5-4700-8950-51fcbb3a024c/biav-logo.webp) Family-run BMS specialist delivering smart, energy-efficient solutions to support net zero buildings across London and the South East. Bespoke design, BS EN 61439 panels, open-protocol systems. [07782 247022 ](tel:+447782247022)[accounts@biav-controls.co.uk](mailto:accounts@biav-controls.co.uk) 52 Selah Drive Swanley, Sevenoaks BR8 7WD [](https://www.instagram.com/biav_controls)[](https://www.linkedin.com/in/bradley-thomas-62a0901b6/) Services - [BMS Service](/services/bms-service) - [BMS Installation](/services/bms-installation) - [BMS Call Out](/services/bms-call-out) - [BMS Pre-Design](/services/bms-pre-design) - [BMS Projects](/services/bms-projects) - [BMS Panel Manufacturing](/services/bms-panel-manufacturing) - [BMS Software & Graphics](/services/bms-software-graphics) - [BMS Electrical Installation](/services/bms-electrical-installation) - [BMS Maintenance](/services/bms-maintenance) - [BMS Energy Optimisation](/services/bms-energy-optimisation) Service Areas - [Swanley](/service-areas/swanley) - [Dartford](/service-areas/dartford) - [Sevenoaks](/service-areas/sevenoaks) - [Orpington](/service-areas/orpington) - [Sidcup](/service-areas/sidcup) - [Bexley](/service-areas/bexley) - [Bromley](/service-areas/bromley) - [Greenwich](/service-areas/greenwich) - [Croydon](/service-areas/croydon) - [Gravesend](/service-areas/gravesend) - [South East London](/service-areas/south-east-london) - [City of London](/service-areas/city-of-london) - [Canary Wharf](/service-areas/canary-wharf) Company - [About](/about) - [Our Work](/our-work) - [Case Studies](/case-studies) - [FAQs](/faq) - [Contact](/contact) - [Leave a review](https://search.google.com/local/writereview?placeid=ChIJDUK3gbWt2EcRTEnbDZS2st8) Hours: 24/7 Company No. 16344714 © 2026 BIAV Controls Limited. 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