Water Treatment Engineer

CBW Staffing Solutions Ltd; Greater London; On-site; GBP 46,000 - 48,000; Full time

Benefits offered by this job

Ongoing training & renewals paid for

Company pension

Room to grow, develop and progress

Job summary

CBW Staffing Solutions Ltd is seeking a Water Treatment Engineer for a premium Central London site. You will own all water treatment, water hygiene and closed loop systems across the building, ensuring compliance with ACoP L8 and HSG274.

The role offers stability, no on-call requirements, and opportunities for progression. The position requires significant experience in water treatment within large commercial estates, with a focus on cooling towers, hot & cold water systems and closed loop

Qualifications

• Minimum 5 years' experience in a large commercial building or estate.
• Proven experience managing cooling towers and evaporative cooling systems.
• Strong understanding of domestic water compliance programmes.
• Experience with closed loop heating and chilled water treatment.
• Experience working with water treatment specialists and laboratories, and interpreting chemical & microbiological analysis reports.
• Demonstrable knowledge of Legionella control requirements and relevant legislation.

Responsibilities

• Manage and monitor cooling towers and evaporative cooling equipment.
• Ensure compliance with ACoP L8, HSG274 Part 1 and site-specific Water Management Plans.
• Oversee cleaning, disinfection and shutdown/start-up procedures.
• Coordinate with water treatment contractors and maintain statutory records.
• Support Legionella risk assessment reviews and corrective actions.

Skills

Water treatment

Legionella control

Cooling towers

Domestic water systems

Compliance audits

Education

Legionella Responsible Person

WH010 Legionella Control & Management (HSG274 1)

CABWI Level 3 Diploma in Water Treatment

City & Guilds Level 2 Plumbing

Job description

Location London, England Sector Engineering Salary £46,000.00 to £48,000.00 per annum

Water Treatment Engineer – FM Service Provider – Central London – £48,000 + Overtime

Exciting opportunity to join a leading FM Service Provider as a Water Treatment Engineer, based at a prestigious commercial high-rise building in Central London. CBW Staffing Solutions are recruiting on behalf of our client for an experienced engineer to take ownership of all water treatment, water hygiene and closed loop systems across the site — covering cooling towers, domestic hot & cold water systems, and heating & chilled water systems. This is a critical compliance-focused role in a landmark building, offering stability, no call out, and genuine room to grow, develop and progress.

Package & Working Hours

• £48,000 per annum + overtime
• Monday to Friday, 08:00 – 17:00
• No call out
• 25 days holiday + bank holidays
• Ongoing training & renewals paid for
• Company pension & standard company benefits
• Room to grow, develop and progress

Key Responsibilities

Cooling Towers & Evaporative Cooling Systems

• Manage and monitor all cooling towers and evaporative cooling equipment
• Ensure full compliance with ACoP L8, HSG274 Part 1 and site-specific Water Management Plans
• Conduct routine inspections, sampling, dip slides and performance monitoring
• Oversee cleaning, disinfection and shutdown/start-up procedures
• Manage specialist water treatment contractors and maintain all statutory records
• Support Legionella risk assessment reviews and corrective actions

Hot & Cold Water Systems

• Manage domestic water systems throughout the building
• Complete statutory temperature monitoring regimes
• Inspect calorifiers, storage tanks, expansion vessels and associated assets
• Carry out flushing programmes in low-use areas
• Review microbiological and chemical sampling resultsDisinfection and chlorination of mains water and hot & cold water systems
• Keep asset records, schematics and compliance documentation up to date

Closed Loop Systems

• Responsible for multiple secondary and tertiary systems: chilled water, heating hot water (LTHW), condenser water, and pressurisation/expansion systems
• Water quality monitoring, sampling and analysis
• Corrosion, scale and microbiological control
• Chemical dosing management and inhibitor level reviews
• Side stream filtration monitoring
• Coordination of flushing and commissioning activities
• Identify system inefficiencies and energy-saving opportunities

Compliance & General

• Act as the site's Responsible Person (Water) where required
• Ensure compliance with ACoP L8, HSG274 Parts 1 & 2, COSHH and Water Fittings Regulations
• Produce monthly compliance and performance reports; support client, insurer and regulatory audits
• Basic plumbing — repairing pipework, leaks and small jobs such as dead leg removal

Requirements

• Minimum 5 years' experience within a large commercial building or estate
• Proven experience managing cooling towers and evaporative cooling systems
• Strong understanding of domestic water compliance programmes
• Experience with closed loop heating and chilled water treatment
• Experience working with water treatment specialists and laboratories, and interpreting chemical & microbiological analysis reports
• Demonstrable knowledge of Legionella control requirements and relevant legislation

Qualifications

• Legionella Responsible Person (C&G Accredited) – HSG274 Part 2
• C&G Legionella Control & Management of Hot and Cold Water Services and Evaporative Cooling Systems (WH010) – HSG274 Part 1
• CABWI Level 3 Diploma in Water Treatment or equivalent
• City & Guilds Level 2 Plumbing

Desirable

• C&G Risk Assessment for Legionella and Water Hygiene Control (WH004)
• C&G Accredited Responsible Person (Water)
• IOSH Managing Safely
• COSHH awareness, risk assessment training and permit to work experience