Contact Build Recruitment
Build Recruitment
Water Treatment Engineer
North London, London
Contact Build Recruitment
- Hours
- Full Time
- Posted
- 11 hours ago
- Salary
- £38,000 - 40,000 - Annum
- Recruiter
- Build Recruitment
- Closes
- 04 Nov 2026
- Course
- No
- Recruiter Type
- Direct Employer
Description
Water Treatment & Balancing EngineerLocation: Cambridge, with travel across Oxford, London and the wider South East
Salary: £45,000–£55,000, depending on experience
Package: Company van, enhanced benefits and expenses covered
Our client, a growing specialist contractor within the renewable energy sector, is looking for an experienced Water Treatment & Balancing Engineer.
The company designs and installs ground source heat pump systems across residential, commercial and public-sector developments. This position offers the opportunity to work on innovative low-carbon heating projects and play a key role in developing the water treatment and balancing function.
The RoleYou will be responsible for flushing, treating, balancing and commissioning heating systems to ensure they operate safely and efficiently from installation.
Key responsibilities will include:
Flushing, cleaning and chemically treating closed-loop heating systems
Conducting water-quality testing, sampling and analysis
Dosing systems with inhibitors, glycol and other treatment chemicals
Balancing heating systems and underfloor heating circuits
Setting and commissioning balancing valves, pumps and flow rates
Supporting the commissioning and start-up of ground source heat pump systems
Recording commissioning data and producing accurate reports
Preparing RAMS and other relevant safety documentation
Identifying and resolving system performance issues
Working closely with installation, commissioning and project teams
Ensuring work meets industry standards, health and safety requirements and project specifications
About YouThe successful candidate will ideally have:
Previous experience in water treatment, hydronic balancing or HVAC commissioning
Experience working with commercial or domestic heating systems
A strong understanding of heating circuits, pumps, valves and flow balancing
Knowledge of closed-system water treatment and chemical dosing
The ability to interpret water-treatment sampling results
Strong reporting and general computer skills
A proactive approach to problem-solving
The ability to work independently and manage your own workload
A full UK driving licence
Experience with ground source or air source heat pumps, BSRIA commissioning procedures or a mechanical/building-services background would be advantageous. Relevant CSCS, ECS, water-treatment or commissioning qualifications are also desirable.
Package and Benefits
£45,000–£55,000 basic salary
Company van
Business expenses covered
Accommodation provided when overnight stays are required
Enhanced pension scheme
Private health insurance after six months
Income protection
Death-in-service insurance
Holiday allowance including bank holidays, your birthday and additional company days
Opportunity to work on nationwide renewable-energy projects
Scope to develop and grow the department
The role will involve travel across Cambridge, Oxford, London and the wider South East, with occasional UK-wide travel. xjnqpsq Accommodation and relevant expenses will be provided where required.
Apply today or contact the recruitment team for a confidential discussion
Ad ID: 5418955197
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