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Legionella Monitoring for Commercial Offices

Workplace water safety,
monitored continuously.
Even with hybrid working.

Wireless temperature sensors at tanks, loops, and sentinel taps across multi-tenant buildings, checking thresholds against HSE L8 automatically, around the clock.

Speak to an Expert See how it works
Live monitoring. Continuous compliance.
AQUAIOT L8 Dashboard
42Outlets OK
3Caution
1Alert
Sentinel Outlets – Live
Tank A – Cold Feed18.4°COK
Outlet 7 – HWS Return49.1°CCaution
Outlet 12 – Sentinel56.8°CAlert
CW Tank B17.2°COK
Hybrid working leaves outlets idleWith fewer people in the office, kitchenettes, washrooms, and tea points see far less use. Water sits in pipes and warms into the growth range between manual rounds.
Duty splits between landlord and tenantIn multi-tenant buildings, responsibility for water systems is split between landlord and occupiers. Gaps between the two are where monitoring quietly falls through.
Multi-tenant buildings are complexShared risers, varied fit-outs, and changing tenants make manual L8 monitoring across a commercial building slow and easy to leave incomplete.
Inspections expect a clean recordWhen the HSE, an insurer, or an incoming tenant asks for temperature history, paper logbooks take time to compile and often reveal gaps around quiet floors.
The AQUAIOT Solution

Continuous visibility.
Automatic records.
Clear accountability.

AQUAIOT replaces manual rounds with continuous automated monitoring across the building, so your L8 record stays current through hybrid-working patterns and is always ready for inspection.

Real-time temperature profiling at tanks, loops, and sentinel outlets across shared and tenant areas, continuous rather than periodic.
Threshold alerts against HSE L8 guidance, immediate SMS, email, and app notification when a little-used outlet develops risk or a flush is missed.
Tamper-evident, exportable audit trails, BMS and CAFM integration and clear records across landlord and tenant areas.
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Live Outlet Status
CW Tank – Return Temp16.8°C
HWS Flow – Calorifier60.4°C
HWS Return – Loop 349.3°C
Sentinel Outlet 1256.8°C
Alert triggered – Outlet 12
Temperature above L8 calorifier threshold. Notification sent 14:32.
How It Works

Three steps to continuous L8 compliance

Step 01

Monitor

AQUAIOT sensors are deployed at tanks, loops, calorifiers, and sentinel outlets. Temperature is profiled continuously, every reading timestamped and logged to the cloud over secure cellular or LoRaWAN telemetry.

Step 02

Alert

When temperatures drift outside HSE L8 thresholds, or when a scheduled flush is missed, AQUAIOT triggers an immediate alert via SMS, email, or app, with role-based escalation rules for your estates team.

Step 03

Record

Every reading, alert, and action is captured in tamper-evident audit logs. Records are exportable on demand and integrate with CAFM, BMS, and AIMS systems, so audit preparation is minutes, not days.

Capabilities

Everything your L8 programme needs

Purpose-built for estates, facilities, and compliance teams managing water systems across single or multiple sites.

Real-time temperature profiling

Continuous monitoring at tanks, calorifiers, loops, and sentinel outlets. Every reading timestamped and stored, never a gap in your record.

HSE L8 threshold alerting

Thresholds checked against HSE L8 and ACoP guidance. Alerts fired immediately when cold water exceeds 20C or hot water falls below 50C at point of use.

Missed-flush detection

AQUAIOT detects when scheduled flushing routines are not completed and generates an automatic alert, so no event is undocumented.

Tamper-evident audit trails

Every reading and action is logged with a secure, unalterable timestamp. Exportable records ready for audit, inspection, or HSE enquiry at any time.

API / BMS / CAFM integration

Open and interoperable. AQUAIOT connects to your existing SCADA, AIMS, CAFM, and BMS platforms via RS485/Modbus or REST API, no lock-in.

Retrofit-friendly deployment

Non-invasive sensors designed for live environments. No pipe cutting, no shutdown. AQUAIOT engineers handle site survey, installation, and commissioning.

Compliance & Standards

Aligned to the standards your auditors check.

HSE L8 & HSG274 Part 2 Multi-Tenant Coverage Immutable Timestamped Logs Exportable Evidence
Book a Demo

No commitment. Talk to our engineering team.

Who It’s For

Built for everyone with a stake in the building

Managing Agents

One record across every building.

Managing agents carry L8 responsibility across portfolios of commercial buildings with varied tenants and systems. Manual monitoring at this scale is fragile and hard to evidence consistently across the estate.

  • Continuous monitoring across every building from a single dashboard
  • Standardised records and alerts across the managed portfolio
  • Role-based access for agents, building managers, and contractors
  • Audit-ready evidence for landlords, tenants, and insurers
Corporate Occupiers

Duty of care to your people.

Corporate occupiers carry a duty of care for water safety in the space they control, especially where hybrid working leaves outlets idle. Continuous monitoring covers that risk without adding to facilities workload.

  • Continuous profiling across occupied and quiet floors
  • Automatic alerts when little-used outlets develop risk conditions
  • Tamper-evident records for health and safety governance
  • Retrofit-friendly install with no shutdown of building services
FM Providers

Less time on rounds, more on service.

FM providers deliver L8 compliance across client buildings under tight resourcing. Automation frees skilled people from clipboard rounds and gives a defensible, always-current record for every site under contract.

  • Replace labour-intensive manual rounds with automated monitoring
  • Reduce reactive call-outs by detecting drift before it escalates
  • Audit-ready records for client reporting and SLA evidence
  • BMS and CAFM integration across the contract portfolio
Landlords

Protect the asset and the tenancy.

Landlords hold L8 duty over shared systems and common parts, where responsibility can blur with tenants. A clear, continuous record protects the asset, the tenancy relationship, and the duty holder.

  • Continuous monitoring of shared risers, tanks, and common parts
  • Clear records that help define landlord and tenant responsibilities
  • Documented evidence that common-part water systems are safe
  • Cellular and LoRaWAN telemetry for older or complex buildings
Open, interoperable systems. No lock-in. Engineered for operational environments.
Cellular + LoRaWAN telemetry Encrypted payloads & OTA updates RS485/Modbus + REST API Role-based cloud dashboards CAFM / BMS compatible
Questions & Answers

Legionella monitoring for commercial offices, answered

How does automated monitoring support HSE L8 in commercial offices?
AQUAIOT records temperatures continuously at tanks, loops, and sentinel outlets across the building and checks them against HSE L8 guidance. It strengthens the duty holder’s written scheme of control with a complete, tamper-evident record, while responsibility for the overall control scheme remains with the landlord or occupier.
How does it handle little-used outlets after hybrid working?
AQUAIOT profiles low-use kitchenettes, washrooms, and tea points continuously and sends an immediate alert when temperatures drift into risk conditions, covering the idle outlets that hybrid working creates between manual rounds.
How does it help with the landlord and tenant duty split?
Continuous monitoring across shared and tenant areas gives clear, attributable records that help define where landlord and tenant responsibilities sit, so the gaps between the two no longer go unmonitored.
Can it cover a portfolio of buildings from one place?
Yes. Continuous monitoring across every managed building is visible from a single dashboard, with role-based access for managing agents, building managers, and contractors.
Can sensors be fitted without disrupting tenants?
Yes. AQUAIOT sensors are designed for retrofit in live environments, with no pipe cutting and no shutdown required. Our engineers handle the site survey, installation, and commissioning around building operations.
Does it integrate with our BMS or CAFM system?
Yes. AQUAIOT is open and interoperable, connecting to SCADA, AIMS, CAFM, and BMS platforms over RS485/Modbus or REST API, with no vendor lock-in.
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Ready when you are

Stop leaving idle outlets and shared systems uncovered.

Talk to our engineering team about continuous monitoring, automated alerts, and audit-ready compliance records for your commercial building.

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Office Legionella Monitoring – Speak to an AQUAIOT engineer about your estate.
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