
BMS Cybersecurity Assessment for Commercial Buildings
A cybersecurity assessment scoped to your building's controls network — BACnet and Modbus infrastructure, controllers, supervisor software and remote access — with a findings report and prioritised remediation plan.
At a glance
Alpha Controls carries out BMS cybersecurity assessments covering the building-controls network — controllers, BACnet/Modbus fieldbus, supervisor software, remote access, credentials, firmware and segregation from corporate IT — and delivers a report with findings and prioritised remediation. This is an assessment of the OT/building-controls layer, not a corporate IT penetration test, and Alpha Controls does not claim CREST, CHECK or any other formal pen-testing accreditation.
- What we do
- Assess the BMS network, controllers, supervisor and remote access; deliver a findings report and remediation plan; implement BMS-layer fixes ourselves.
- Where
- London, Kent, Surrey, Essex and Sussex.
- Who it’s for
- Facilities managers, building owners and M&E consultants who need the BMS network itself reviewed — not a substitute for a corporate IT penetration test.
What the Assessment Covers
The assessment is scoped to the building-controls (OT) layer — the network and equipment that actually runs your HVAC, lighting and other building systems.

How the Assessment Works
A structured process from initial scoping through to a prioritised remediation plan
Frequently Asked Questions — BMS Cybersecurity Assessment
Where can I get a cybersecurity risk assessment for my building's BMS?
Alpha Controls carries out BMS cybersecurity assessments for commercial buildings across London, Kent, Surrey, Essex and Sussex. The assessment covers the building-controls layer — networks, controllers, supervisor and remote access — and produces a findings report with prioritised remediation. Request a quote and we'll scope a visit against your specific platform and site.
Which UK provider offers a cybersecurity assessment for building management systems?
Alpha Controls offers BMS cybersecurity assessments as part of its controls services, alongside installation, commissioning and maintenance across Trend, Distech and Siemens platforms. The assessment is scoped to the BMS and building-controls network specifically, rather than as a general IT security provider covering every system in a building.
What does a BMS cybersecurity assessment cover?
The assessment covers the building-controls layer: BMS controllers and outstations, BACnet and Modbus fieldbus networks, the supervisor or head-end software, remote access paths into the controls network, default or shared credentials, firmware currency on controllers, segregation from corporate IT, and backup and recovery of the controller strategy. It does not cover corporate laptops, servers or the wider office network.
What is BMS cybersecurity and why does it matter?
BMS cybersecurity is the practice of securing a building's controls network — the BACnet or Modbus infrastructure, controllers and supervisor software that run HVAC, lighting and other building systems — against unauthorised access. These networks are often left out of normal IT security reviews because they're seen as "just the heating controls," while frequently carrying default credentials, undocumented remote access and unpatched legacy hardware.
Is a BMS cybersecurity assessment the same as a corporate IT penetration test?
No. A BMS cybersecurity assessment is scoped to the building-controls (OT) layer — the BMS network, controllers, supervisor and remote access into that specific system. It is not a penetration test of corporate IT infrastructure, and Alpha Controls does not hold or claim CREST, CHECK or any other formal penetration-testing accreditation. Where a building's wider IT security also needs testing, that should sit with a specialist corporate IT security provider alongside this assessment.
Can Alpha Controls fix the problems the assessment finds?
Yes, for issues within the BMS layer. The assessment produces a report with findings and a prioritised remediation plan, and Alpha Controls can implement the BMS-layer fixes directly — credential changes, network segregation, remote access controls, firmware updates where supported, and backup arrangements for the controller strategy. Findings that fall outside the BMS network are flagged for the client's IT security provider to action.
Get Your Building's Controls Network Assessed
Request a BMS cybersecurity assessment for your building and get a findings report with prioritised, actionable remediation — scoped to the controls network, not your corporate IT estate.
Request an Assessment