Service Engineer - Water Hygiene & Water Treatment
| Posting date: | 27 February 2026 |
|---|---|
| Salary: | £28,000 to £40,000 per year |
| Hours: | Full time |
| Closing date: | 29 March 2026 |
| Location: | Wokingham, Berkshire, RG40 4QQ |
| Remote working: | On-site only |
| Company: | GI Group Main Account |
| Job type: | Permanent |
| Job reference: | 1059_1772195735 |
Summary
Service Engineer - Water Hygiene & Water Treatment
Location: Field-based (South UK)
Salary: Competitive + OT + Company Vehicle
Employment Type: Full-time, Permanent
Industry: Water Hygiene / Water Treatment
Join a Growing Company
We're supporting a well‑established technical services organisation in the water treatment & water hygiene sector, who are expanding their engineering team due to continued growth. This is an exciting opportunity for an experienced Service Engineer looking to develop their skills across a wide range of commercial and industrial water systems.
You'll be joining a supportive, highly skilled team where no two days are the same, with excellent training and progression opportunities available.
The Role
You'll carry out a variety of water hygiene and water treatment tasks across client sites. Typical duties include:
Water Hygiene & Monitoring
- Monthly temperature monitoring at sentinel outlets and calorifier flow/return
- Weekly flushing of reduced useage outlets
- Showerhead and hose descale & disinfection
System Servicing & Compliance
- TMV servicing (6‑monthly and annual)
- Expansion vessel purging
- Cold-water storage tank inspections (cleanliness, integrity, vermin screens, supports)
- Calorifier inspections, blowdowns & borescope checks
- Water softener servicing
- Cleaning & disinfection of tanks, pipework, and associated services
Water Treatment
- Cooling towers, closed systems & boiler checks (weekly/monthly/quarterly/annual)
- Sampling: Legionella, TVC, and closed systems
- Chemical dosing, calibration & equipment checks
- RO system maintenance
- Filtration system replacement/backwashing
- UV system cleaning and lamp replacement
Remedials & Additional Tasks
- Dead-leg removal
- Equipment installation
- Tank compliance upgrades
- Chemical dosing via pot or pump, with interpretation of water results
What We're Looking For
Essential
- Proven experience in water hygiene and/or water treatment
- Ability to demonstrate competency in some or all of the technical duties listed above
- Ability to interpret test results and dose closed systems appropriately
- Strong communication and reporting skills
- Valid UK driving licence - maximum of 6 points
Desirable
- Knowledge of HSG274, ACOP L8, and BG50
- Plumbing or electrical experience
- Experience using test kits for cooling towers, boilers, and closed systems
- RO, UV, chemical dosing, or filtration system experience
Qualifications
No mandatory qualifications required - plumbing or electrical qualifications are an advantage.
Why Apply?
- Company vehicle & fuel card
- Overtime available (including weekend rota)
- Training and development through a dedicated technical academy
- Long-term progression opportunities
- Supportive, friendly engineering team
Interested?
Apply now with your CV, or contact us for a confidential discussion.
Should you require any support or assistance, please contact your local Gi Group office.
Gi Group Holdings Recruitment Limited are proud founding members of Menopause in business, pledge members for Neurodiversity in business, Disability committed members, Silver status pledge members for the Armed Forces Covenant, and Bronze trail blazers for Racial Equality matters.
Gi Group Holdings Recruitment Limited group of companies includes Gi Recruitment Limited, Draefern Limited, Gi Group Recruitment Ltd, INTOO (UK) Limited, Marks Sattin (UK) Limited, TACK TMI UK Limited, Grafton Professional Staffing Limited, Encore Personnel Services, Gi Group Ireland Limited and Kelly Services (UK) Ltd. Gi Group Ireland Limited are acting as an Employment Agency in relation to this role.
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