Legionella Risk Assessor

Department: Field Team

Employment Type: Full Time

Location: Reading

Reporting To: Mark Viner

Compensation: £29,000 - £32,000 / year

Legionella Risk Assessor

TWC Services

Oxfordshire, Bicester, Henley on Thames, Uxbridge, Beaconsfield, Denham and High Wycombe areas.

Primary Water Solutions (PWS) is a specialist water hygiene and water treatment consultancy, supporting organisations across the UK with Legionella risk management, water monitoring, treatment, cleaning and disinfection, consultancy and training .

Now part of Celnor Group’s Safety & Compliance division , PWS combines specialist technical expertise with the backing of a growing national group.

Part of the Celnor Group

Celnor Group is a UK-based environmental services group operating across the Testing, Inspection, Certification and Compliance (TICC) landscape. With a growing portfolio of specialist businesses, Celnor provides essential services that protect people, property and the environment.

While each business retains its own identity, culture and technical specialism, all are supported by a central group function that invests in people, systems and long-term sustainable growth.

Job details

As a Legionella Risk Assessor, you will conduct compliant risk assessments across commercial and industrial sites in line with ACOP L8, HSG274 (Parts 1–3), and company standards. Working independently and with the Water Hygiene Team, you will assess, document, and report on systems to help clients effectively manage and reduce Legionella risk.

What you will do

• Complete Legionella risk assessments across commercial and residential properties in line with ACOP L8, HSG274 and relevant guidance.
• Survey hot and cold water systems, identify risks and recommend appropriate corrective actions.
• Produce clear, accurate and detailed risk assessment reports, including updating schematic drawings where required.
• Manage your own diary and workload while maintaining professional communication with clients and site contacts.
• Complete occasional water hygiene service work, including temperature monitoring, sampling, flushing, tank inspections and showerhead cleaning.
• Maintain accurate electronic records and ensure all work is completed safely and in line with company procedures.

Who you are

• Previous experience completing Legionella risk assessments.
• Strong knowledge of ACOP L8 and HSG274
• Experience working with a range of hot and cold water systems
• The ability to produce professional and technically accurate reports
• Previous water hygiene monitoring or servicing experience
• Strong communication and customer service skills
• Good organisation and time-management skills
• Confidence working independently and managing a mobile workload
• Good IT skills and experience using electronic reporting systems
• A full UK driving licence

Benefits

• Company Van
• 20 days of annual leave including bank holidays, plus the option to buy additional
• Employee Assistance Programme offering confidential support whenever you need
• £250 work birthday bonus after two years of service
• Free on-site parking
• Fully funded training and development, supporting you to progress into new roles
• And yes — we even have an office dog to brighten your day!

Join us

You’ll be joining a business where your contribution matters and where professionalism, integrity and teamwork are genuinely valued. As part of the wider Celnor Group, you’ll benefit from group-wide investment, shared expertise and opportunities to develop your career as the organisation continues to grow.

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Important information

Celnor Group and its businesses manage recruitment directly. We do not require agency support for this role and will only engage with recruitment partners from our preferred supplier list where necessary.

We may use technology, including AI-enabled tools, to support parts of the recruitment process. AI is not used for candidate screening, scoring or hiring decisions. All hiring decisions are made by people, for people. Our recruitment systems are ISO 42001 accredited, reflecting our commitment to ethical, transparent and responsible use of technology.