--- title: "BMS Contractor Bexley - Bexleyheath, Erith & Belvedere | BIAV Controls" description: "BMS installation, service and 24/7 call-out across the London Borough of Bexley: Bexleyheath, Erith, Belvedere, Welling, Crayford and Slade Green. 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Bexley reactive attendance is typically one of our fastest response windows." } }, { "@type": "Question", "name": "Can you work on industrial-estate controls at Belvedere, Erith and Crayford?", "acceptedAnswer": { "@type": "Answer", "text": "Yes. Warehouse HVAC, process cooling, controlled-environment applications, panel replacement and full BMS installations sit inside our scope." } }, { "@type": "Question", "name": "Can you support Bexley schools and care sites?", "acceptedAnswer": { "@type": "Answer", "text": "Yes. Written service reports, RAMS, full insurance documentation and cut-overs scheduled around operating hours or school holidays." } }, { "@type": "Question", "name": "Which BMS platforms do you work on in Bexley?", "acceptedAnswer": { "@type": "Answer", "text": "Tridium Niagara, Trend, Siemens, Distech, Cylon, Honeywell and any BACnet/Modbus/LonWorks device, open protocol only." } }, { "@type": "Question", "name": "Are you fully insured?", "acceptedAnswer": { "@type": "Answer", "text": "£20M public liability, £10M employers' liability, £10M professional indemnity. Certificates issued ahead of mobilisation." } } ] }, { "@context": "https://schema.org", "@type": "BreadcrumbList", "itemListElement": [ { "@type": "ListItem", "position": 1, "name": "Home", "item": "/" }, { "@type": "ListItem", "position": 2, "name": "Service Areas", "item": "/service-areas" }, { "@type": "ListItem", "position": 3, "name": "Bexley", "item": "/service-areas/bexley" } ] } ] --- 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) ![Queen Elizabeth II Bridge (Dartford Crossing) at dusk seen across the Bexley riverside](/assets/bexley-CBR15sLK.jpg) BMS contractor · Bexley · DA1, DA5, DA6, DA7, DA8, DA14, DA15, DA16, DA17, DA18 # BMS contractor for the London Borough of Bexley. Neighbouring, fast, local. Bexley sits alongside our home borough, and most postcodes are inside a 20-minute drive. Industrial units at Belvedere and Erith, commercial estates around Bexleyheath, plus a large residential base all draw on our local coverage. [Request a Quote](/contact) [Call 07782 247022](tel:+447782247022) 2-hour on-site SLA for contract clients 24/7 phones answered by an engineer Quote on application, in writing 1. [Home ](/) 2. [Service Areas](/service-areas) 3. Bexley 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 Local relevance ## BMS engineers whoactually know Bexley. Based in Swanley on the London/Kent border: 15–25 minutes off-peak from Swanley: a neighbouring borough. We work across Bexleyheath, Erith, Belvedere, Welling and the wider the London Borough of Bexley on installation, service, maintenance and reactive call-out. We cover Bexley Every Bexley postcode: DA1, DA5, DA6, DA7, DA8, DA14, DA15, DA16, DA17 and DA18. Bexleyheath, Erith, Belvedere, Welling, Crayford and Slade Green all sit inside our normal working area. (Sidcup in DA14/DA15 has its own dedicated page.) Response times Bexley is one of our closest boroughs alongside Bromley. Contract clients get a 2-hour on-site SLA; off-peak attendance is often inside 30–45 minutes. 24/7 phones answered by an engineer. Bexley property types Industrial and light-industrial estates at Belvedere, Erith and Crayford, retail parks and centres at Bexleyheath, business parks, primary and secondary schools across the borough, care homes, community leisure and residential blocks along the DA road corridors. Common BMS needs in Bexley Industrial-estate HVAC and process cooling control, retail centre HVAC and refrigeration BMS support, school PPM contracts, care-home reactive cover, and boiler and chiller sequencing on commercial estates. On the ground in Bexley ## A closer look at how we work across the London Borough of Bexley. BIAV Controls is a specialist Building Management System contractor based in Swanley, on the London/Kent border. We install, service, maintain and reactively cover BMS across Bexley, the whole of the London Borough of Bexley, including Bexleyheath, Erith, Belvedere, Welling and the surrounding DA1, DA5, DA6, DA7, DA8, DA14, DA15, DA16, DA17, DA18 postcode area. The business was set up to deliver a specific standard of BMS work: open protocol, transparent scoping, written documentation, and engineers who actually turn up when they said they would. Our engineers have 13+ years of hands-on BMS experience across every major open-protocol platform: Tridium Niagara, Trend, Siemens (Desigo and Talon), Distech, Cylon and Honeywell, plus any BACnet, Modbus or LonWorks device that touches a plantroom. That platform coverage matters in Bexley because the borough's estate is mixed: modern buildings tend to be on current Tridium supervisors, mid-generation buildings run legacy Trend, and older civic and industrial stock often sits on Siemens or Cylon. One contractor comfortable across all of them saves you the pain of stitching together sub-contractors and losing accountability at the boundaries. Every project we deliver in Bexley carries the same commercial and technical guardrails. Public liability is insured to £20M, employers' liability to £10M and professional indemnity to £10M. Control panels are designed in-house and manufactured to BS EN 61439 by our panel-shop partner. Installed workmanship carries a 1-year warranty. Pricing is quote on application, issued in writing after a real site or specification review, not pulled from a rate card, and we do not tie buildings to a proprietary supervisor. Contract clients across South East London receive a 2-hour on-site SLA and 24/7 phone cover answered by an engineer rather than an answer service. Reactive callers without a contract are prioritised within 24 hours. For Bexley specifically, 15–25 minutes off-peak from Swanley: a neighbouring borough, so response commitments are grounded in real travel time rather than optimistic mapping. If a site sits inside the DA1, DA5, DA6, DA7, DA8, DA14, DA15, DA16, DA17, DA18 postcode range, we are already routing engineers past it most working days. Beyond Bexley itself, our regular coverage extends across South East London and into neighbouring boroughs, including Sidcup, Dartford, Greenwich, so multi-site clients get consistent delivery, one contractor and one paper trail across their estate. If you're weighing us against a national roll-up, the practical difference is that our office is a short drive from your building, our engineers know the borough's road network and access regimes, and there is no chain of sub-contractors between the person you speak to and the person on-site. Services available ## Every BMS service we offer,delivered in Bexley. All nine BMS services are available across the London Borough of Bexley. Click through for full scope, process and FAQs on each. [![BIAV Controls laptop running Trend IQVision alongside a legacy Trend IQ BMS panel during a scheduled service visit](/__l5e/assets-v1/be0f2c1f-fae5-4e12-af7f-63546d418c76/This_is_a_service_visit_on_a_old_Bms_system.jpeg) BMS Service in Bexley A BMS service is a planned visit by a controls engineer who checks every sub-system on the Building Management System: sensors, actuators, dampers, valves, control loops, schedules, alarms, network health and supervisor software, then corrects setpoints, resolves faults and issues a written service report. View service ](/services/bms-service)[![Six Hamworthy Stratton condensing boilers on a new LTHW system, all controlled from the BMS by BIAV Controls](/__l5e/assets-v1/b84023a1-9470-4e8b-aa95-9a52fd602068/Recent_project_works_LTHW_system_6_boilers_all_controlled_from_Bms2.jpeg) BMS Installation in Bexley A BMS installation is the full end-to-end delivery of a Building Management System: design of the control philosophy, manufacture of controls panels to BS EN 61439, containment and cabling, controller mounting, sensor and valve fit-off, software engineering, graphics build, commissioning, witness testing and formal handover. View service ](/services/bms-installation)[![Trend IQView4 HMI showing an active AHU Common Fault alarm attended on a 24/7 BMS call-out](/__l5e/assets-v1/52077a86-d494-4089-a291-676bc7275e13/Another_call_out_for_a_alarm_on_AHU_system.jpeg) BMS Call Out in Bexley A BMS call-out is an urgent visit to diagnose and rectify a fault on the Building Management System or the plant it controls: no-heat, no-cooling, comms failure, supervisor crash, alarm storm, network dropout or safety interlock trip. View service ](/services/bms-call-out)[![Chilled water secondary pump and chilled-beam BMS mimic developed at pre-design stage](/__l5e/assets-v1/6dbf1d01-ef52-4dbc-aeaf-7015f1dcfbf8/Software_Graphic_Designs3.jpeg) BMS Pre-Design in Bexley BMS pre-design is the engineering document set that defines exactly how a Building Management System will control every piece of plant on a project: point counts, control sequences, setpoints, alarm strategy, interlocks, protocol strategy, graphics scope and commissioning checklist. View service ](/services/bms-pre-design)[![70 Gray's Inn Road, London: a BIAV Controls end-to-end BMS site optimisation project](/__l5e/assets-v1/aa1cf3e5-3a17-4777-9d1b-1bad04b277f2/Completed_full_site_optimisation_works_at_70_greys_in_and_added_touch_15_inch_touch_display_screens_to_7_tentsnt_floors_to_give_them_full_control_of_there_system4.jpeg) BMS Projects in Bexley A BMS project is single-point delivery of every controls scope on a construction or refurbishment programme: pre-design, panel manufacture, electrical installation, controller and sensor fit-off, software engineering, graphics, commissioning, witness testing, handover and post-handover service. View service ](/services/bms-projects)[![BIAV-designed BMS control panel with INNON HMI, boiler and secondary pump status, built to BS EN 61439](/__l5e/assets-v1/e87b4a38-bbb0-4601-a8f1-37d98d28bbd4/Panel_controlling_the_boilers.jpeg) BMS Panel Manufacturing in Bexley BMS panel manufacturing is the design and build of the enclosures that house the Building Management System's controllers, contactors, protection, power supplies, network devices and terminations, engineered specifically for the plant they control and the site they will live in. View service ](/services/bms-panel-manufacturing)[![AHU02A BMS mimic graphic designed by BIAV Controls for Royal London Hospital (NHS Skanska)](/__l5e/assets-v1/46ed4ee4-5ecc-4e16-a126-7a929733520b/Software_Graphic_Designs2.jpeg) BMS Software & Graphics in Bexley BMS software and graphics is the code and visual front-end that sits on top of a Building Management System: controller programming, supervisor engineering (Tridium Niagara, Distech EC-Net and equivalents), graphics build, alarm schema, trends, histories, schedules and dashboards. View service ](/services/bms-software-graphics)[![iSMA-Niagara BMS controller with dressed terminals and containment on a school ASHP electrical installation](/__l5e/assets-v1/7699f4cc-ce46-4c3d-a017-f993de9cacc8/Small_project_from_a_air_source_heat_pump_system_in_local_school1.jpeg) BMS Electrical Installation in Bexley 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. View service ](/services/bms-electrical-installation)[![Commercial LTHW plantroom with Grundfos pumps and Siemens actuators maintained under a PPM contract](/__l5e/assets-v1/21610a49-a752-4c3d-9f49-44ce2b9dd4f4/Another_service_visit_on_a_old_system3.jpeg) BMS Maintenance in Bexley BMS maintenance is a contracted programme of planned service visits, remote monitoring, reactive call-out and post-incident review, with defined SLAs and written reports, that keeps a Building Management System delivering the outcomes it was designed to deliver. View service ](/services/bms-maintenance)[![15-inch touch display screens installed on tenant floors at 70 Gray's Inn Road as part of a BMS site optimisation project](/__l5e/assets-v1/8cb152a7-db95-4bb7-99da-1907b1d8e0d9/Completed_full_site_optimisation_works_at_70_greys_in_and_added_touch_15_inch_touch_display_screens_to_7_tentsnt_floors_to_give_them_full_control_of_there_system1.jpeg) BMS Energy Optimisation in Bexley BMS energy optimisation is a structured programme of audit, correction and verification carried out on an existing Building Management System. View service ](/services/bms-energy-optimisation) Why choose us in Bexley ## Concrete reasons,not marketing lines. Every claim on this page is drawn from things we can evidence: our insurances, our SLAs, our warranty terms and the standards our panels and partner electricians work to. Neighbouring borough: genuine local response Bexley is roughly 20 minutes from our Swanley office. That means fast reactive attendance, cost-effective PPM visits and engineers who know the borough's road network. Industrial and process controls literacy Belvedere, Erith and Crayford industrial estates run process cooling, warehouse HVAC and controlled-environment requirements. We commission and service against those loads, not against generic templates. Documented and insured £20M PL / £10M EL / £10M PI, panels built to BS EN 61439, written service reports every visit, 1-year workmanship warranty on installed works. The paperwork public-sector Bexley procurement needs. Local problems, honestly ## BMS issues we seeacross Bexley. Bexley's BMS estate is dominated by industrial and light-industrial buildings plus a large residential and school estate. Both come with distinctive control problems. Industrial-estate HVAC neglect Warehouse and light-industrial buildings on Bexley estates frequently have BMS installed then forgotten. Setpoints drift far outside sensible bands, energy costs rise. Structured PPM with written reports is the fix. Retail-park refrigeration alarms Bexleyheath and Crayford retail parks generate heavy alarm volumes on refrigeration and HVAC combined. Control-strategy tuning suppresses noise while keeping real faults visible. School and care PPM gaps Many Bexley schools and care sites have BMS but no active service. We structure PPM contracts around actual operating hours and SLA needs. Ageing panels and outstations A large share of Bexley industrial-estate control panels are close to end-of-life. We design replacements to BS EN 61439 with staged cut-overs to protect operations. Our process ## How we deliver BMS workacross Bexley. 1. Step 01 Enquiry & scoping call We take the site details for Bexley, current issues and any relevant plant or supervisor information, usually inside a short call. 2. Step 02 Site or specification review For anything beyond routine reactive work we visit or review drawings before quoting. No 'from' prices, no per-square-metre guessing. 3. Step 03 Written fixed quote Quote on application, in writing, with a fixed scope, deliverables and programme. Insurances and RAMS supplied on request. 4. Step 04 Mobilisation & delivery Engineers mobilised to Bexley with permits, RAMS and, where relevant, panel design and manufacture to BS EN 61439 via our panel-shop partner. 5. Step 05 Commissioning & handover Points schedule, controls narrative, as-installed drawings and O&M documentation issued at handover. Nothing left informal. 6. Step 06 Aftercare & PPM 1-year workmanship warranty on installed works. PPM contracts with 2-hour SLA and written service reports available across the borough. Regional coverage ### Also working nearby to Bexley. Our engineers cover South East London and the wider London & South East region on the same terms: 2-hour SLA for contract clients, 24/7 phones, quote on application. [View all service areas](/service-areas) [ South East London BMS in Sidcup DA14, DA15 ](/service-areas/sidcup)[ Kent BMS in Dartford DA1, DA2, DA9 ](/service-areas/dartford)[ South East London BMS in Greenwich SE3, SE7, SE9, SE10, SE18, SE28 ](/service-areas/greenwich) FAQs ## BMS in Bexley,questions answered. Anything not covered here? Call us on [07782 247022](tel:+447782247022). Pricing BMS work in Bexley is quoted on application, issued in writing after a site or specification review. No 'from' prices, no per-square-metre pricing, no proprietary lock-in. ### Do you serve the London Borough of Bexley? + Yes: every Bexley postcode from DA1 through DA18. Bexleyheath, Erith, Belvedere, Welling, Crayford and Slade Green are all covered. Sidcup has its own dedicated page. ### How fast can you reach Bexley? + Bexley is one of our closest boroughs, with most postcodes inside a 20–30 minute off-peak drive. Contract clients receive a 2-hour SLA; attendance is usually significantly faster. ### How much does BMS work cost in Bexley? + Quote on application in writing after a site or specification review. Industrial, retail, school and commercial jobs are all scoped individually, with no per-square-metre pricing. ### Do you offer 24/7 BMS emergency cover in Bexley? + Yes. Phones answered 24/7 by an engineer. Bexley reactive attendance is typically one of our fastest response windows. ### Can you work on industrial-estate controls at Belvedere, Erith and Crayford? + Yes. Warehouse HVAC, process cooling, controlled-environment applications, panel replacement and full BMS installations sit inside our scope. ### Can you support Bexley schools and care sites? + Yes. Written service reports, RAMS, full insurance documentation and cut-overs scheduled around operating hours or school holidays. ### Which BMS platforms do you work on in Bexley? + Tridium Niagara, Trend, Siemens, Distech, Cylon, Honeywell and any BACnet/Modbus/LonWorks device, open protocol only. ### Are you fully insured? + £20M public liability, £10M employers' liability, £10M professional indemnity. Certificates issued ahead of mobilisation. Request a quote: Bexley ## Send us the spec.We'll come back with a fixed scope. Every Bexley 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 enquiry · Bexley 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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