Temperature Monitoring & Water Safety Programmes
Temperature is the single most effective Legionella control measure in hot and cold water systems. We deliver routine monitoring programmes, written schemes of control and logbook management — giving building owners a documented, ongoing record of the controls in place.
Frequency
Monthly (sentinels) + 6-monthly (rotational)
Site time
Half day to full day per visit
Deliverable
Logbook + visit report + annual summary
Why it matters
Legionella doesn't grow below 20 °C and is killed above 60 °C. Keeping cold water cold and hot water hot is the simplest, most effective control regime — but only if it's monitored, documented and acted on consistently.
Most water safety problems arise not from undiscovered risk, but from missed monitoring or unactioned out-of-spec readings. A reliable monitoring contract removes that risk and gives you a clear audit trail.
Who it's for
- Anyone managing buildings with hot and cold water systems
- Facilities and estates teams without an in-house water hygiene resource
- Multi-site portfolios needing consistent monitoring
- Care homes, schools, healthcare and hospitality
What's included
- Production of a written scheme of control
- Sentinel and representative outlet temperature monitoring
- Calorifier and tank temperature monitoring
- Monthly little-used outlet flushing where required
- TMV operating temperature checks
- Logbook setup, maintenance and audit-ready records
What you receive
- Visit reports following each monitoring round
- Maintained on-site logbook (paper or digital)
- Annual summary and recommendations
- Notification of any out-of-spec readings with action plan
Our process
A repeatable, engineer-led delivery sequence.
- 1
Scheme of control
We write or review the written scheme of control, setting monitoring frequencies, parameters and responsibilities.
- 2
Logbook setup
Paper or digital logbook is installed on site with asset list, schematic and outlet schedule.
- 3
Routine monitoring visits
Engineers attend on a published schedule to record sentinel temperatures, flush little-used outlets and check TMVs.
- 4
Out-of-spec management
Any readings outside safe limits trigger an immediate action plan — flush, retest, escalate to remedial works if needed.
- 5
Annual review
We produce an annual summary with trends, remedial recommendations and a refreshed monitoring schedule.
Frequently asked questions
Related services

Legionella Risk Assessments
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Water Sampling & Laboratory Testing
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Mechanical & Plumbing Remedial Works
Learn moreSee which sectors we serve for guidance specific to your building type.
Want background reading? Browse our compliance guides or talk to an engineer.
Need a Legionella risk assessment or remedial works?
Speak to our engineers about a compliance plan tailored to your portfolio.

