Legionella & Water Hygiene
Legionella Risk Assessment in London & the M25
Legionella risk assessment for commercial premises in London examines how a building stores, distributes and uses water. Offices, hospitality premises and managed buildings need an assessment matched to their actual systems, occupancy and exposure risks, with findings and recommended control measures recorded for the duty holder.
Quick answer
Who provides legionella risk assessment in London, and what does it cost?
London HVAC Pro provides legionella risk assessment in London and the M25 using F-Gas certified engineers. Engineer time is £120+VAT per hour with a one hour minimum and no call-out fee, parts are quoted in writing before fitting, and same-day attendance is usually available. Call 07427 826446 to book.
More answers: faults and causes, service costs, areas we cover.
Assessing commercial water systems
The assessment reviews the water-system layout, storage arrangements and outlets that could expose occupants to aerosols. Existing records and control measures are considered alongside the survey, so the report identifies practical gaps rather than treating every commercial building as the same installation.
- Water-system layout and asset survey
- Temperature profiling and storage review
- Little-used outlets and dead legs
- Existing monitoring and control records
A practical action plan for duty holders
Findings are prioritised according to the risks identified at the premises. The report explains recommended controls, record keeping and review needs for the person managing the building. BS 8580 and HSG274 provide the framework; the scope depends on the actual system rather than a tenancy checklist.
- Site-specific risk findings
- Prioritised control recommendations
- Monitoring and record-keeping review
- Changes that should trigger reassessment
Choose the right service scope
Inspection, routine maintenance, fault diagnosis and installation answer different questions. Describe the equipment and the outcome needed so the visit can be scoped appropriately rather than treating every request as a replacement job.
- Confirm equipment model and access before the visit
Labour and the work to be agreed
Engineer time is £120+VAT per hour with a one hour minimum. The time and materials required depend on the diagnosed fault and access. Ask for the repair scope, any additional parts and the return-to-service checks before proceeding.
- £120+VAT per hour, one hour minimum
- Confirm the parts and labour required for the specific fault
Legionella Risk Assessment across London
Commercial premises may have several water-storage and distribution arrangements under one management team. The assessment considers how those systems are used during normal operation, quieter periods and changes in occupancy. Particular attention is paid to conditions that allow water to stagnate or temperatures to move outside the intended control range.
The written findings help a duty holder organise appropriate controls and keep a usable record of decisions. An assessment is not a substitute for ongoing management: recommended monitoring, remedial work and review arrangements still need to be put into practice at the premises.
Related legionella & water hygiene services
These faults often appear together — each service has its own page with costs and what we check.
Landlord Legionella Risk Assessment
The usual trigger for a call is a letting agent asking for legionella paperwork before a tenancy. Other signs …
Commercial Legionella Risk Assessment
The usual trigger for a call is an office, hotel or care site needing full L8 compliance. Other signs worth ac…
Water Hygiene Services
The usual trigger for a call is ongoing monitoring and remedial work across a property portfolio. Other signs …
Legionella Testing
The usual trigger for a call is sample results needed after a risk assessment or an incident. Other signs wort…
Water Temperature Monitoring
The usual trigger for a call is monthly sentinel outlet checks required by the control scheme. Other signs wor…
Water Sampling
The usual trigger for a call is microbiological sampling for compliance or investigation. Other signs worth ac…
Dead Leg Removal
The usual trigger for a call is redundant pipework identified as a legionella risk. Other signs worth acting o…
Water System Flushing
The usual trigger for a call is little-used outlets in a void or seasonal property. Other signs worth acting o…
See every service on our plumbing and mechanical services index, or read about underfloor heating repair London.
Book legionella risk assessment in London
Tell us what the system is doing and we will send an engineer with the right parts. £120+VAT per hour, one hour minimum.
Call 07427 826446Frequently Asked Questions
Engineer labour from £120 + VAT per hour, with a 1-hour minimum. Parts and materials are quoted separately before work begins.
What's included in Legionella Risk Assessment
- Review of the equipment and the outcome needed
- Inspection of condition and operation
- Recommendation of the right service scope
- Written quote before chargeable work
- Record of findings
How Legionella Risk Assessment works
- 1
Contact us
Describe the equipment and what you need it to do.
- 2
Visit
An engineer inspects the equipment and its operation.
- 3
Recommendation
The right scope is recommended: servicing, repair or installation.
- 4
Written quote
Any chargeable work is quoted before it starts.
- 5
Work and record
Approved work is carried out and recorded.
Legionella Risk Assessment prices
| Item | Price |
|---|---|
| Engineer labour | £120 + VAT per hour |
| Minimum charge | One hour |
| Parts and materials | Written quote before work starts |
See all rates on our prices page or read why customers choose us.
Legionella Risk Assessment: scope, checks and next steps
Risk assessments follow BS 8580 and HSG274 and finish with a prioritised action plan, not a generic document with your address on it.
What the reported symptom tells us
a duty holder needing a compliant written assessment. Record when this occurs, what changed beforehand and whether other equipment is affected. These observations narrow the investigation; they do not prove which part has failed.
Choose the right service scope
Inspection, routine maintenance, fault diagnosis and installation answer different questions. Describe the equipment and the outcome needed so the visit can be scoped appropriately rather than treating every request as a replacement job.
What each check helps establish
- Asset and schematic survey
- Confirm the component identity and model-specific requirements before deciding whether adjustment, testing or replacement is appropriate.
- Temperature profiling
- Confirm the component identity and model-specific requirements before deciding whether adjustment, testing or replacement is appropriate.
- Dead leg identification
- Confirm the component identity and model-specific requirements before deciding whether adjustment, testing or replacement is appropriate.
- Prioritised action plan
- Confirm the component identity and model-specific requirements before deciding whether adjustment, testing or replacement is appropriate.