Water Treatment Engineer

SMS Environmental Ltd; Hounslow; On-site; GBP 28,000 - GBP 32,000; Full time

Job summary

A water hygiene company in Hounslow is seeking a skilled Water Treatment Engineer to ensure client water systems are compliant and safe. You will perform maintenance, treatments, and ensure adherence to regulations, while proactively solving issues. This permanent role offers competitive pay and comprehensive benefits including training, health plans, and paid overtime. Ideal candidates will have experience in water hygiene and possess a City & Guilds qualification. Join a team that values safety and professional development.

Benefits

Paid overtime

22 days holiday plus bank holidays

Company iPad & Mobile Phone

Modern company van with business fuel card

Private medical care after 2 years

Employee discount scheme

Qualifications

• Proven experience in water hygiene, treatment, or Legionella control.
• Understanding of water hygiene legislation and best practices.
• Ability to manage time effectively and work independently.

Responsibilities

• Carry out planned preventative maintenance on water systems.
• Ensure compliance with water hygiene regulations.
• Record and report site activities accurately.

Skills

Water hygiene management

Communication skills

Problem-solving

Education

City & Guilds qualification in Water Hygiene

Job description

Water Treatment Engineer

Permanent

Slough: £28,000 - £32,000 + OTE (incl. overtime & bonus)

Field based

Looking for a hands‑on role that makes a difference?

At SMS Environmental, we don’t just maintain water systems — we protect people’s health and keep environments safe from Legionella and other water hygiene risks. If you’re a skilled Water Hygiene Engineer who takes pride in doing things right the first time, we want you on our team.

Responsibilities

You’ll be out on the road, visiting a variety of client sites — from hospitals and schools to commercial and industrial settings — making sure their water systems are compliant, clean, and safe.

Your day‑to‑day will include:

• Carrying out planned preventative maintenance (PPM), sampling, flushing, disinfecting, and chemical treatment of water systems
• Performing remedial works, tank cleans, and chlorination
• Ensuring compliance with ACOP L8, HSG274, and other water hygiene regulations
• Recording and reporting site activities accurately using company systems
• Spotting and reporting system issues before they become bigger problems
• Representing SMS Environmental professionally with clients on-site
• Supporting and mentoring newer engineers as part of a collaborative team

Qualifications

• Has proven experience in water hygiene, treatment, or Legionella control
• Understands water hygiene legislation and best practice
• Communicates clearly and confidently with clients and colleaguesWorks well independently and manages time effectively
• Holds a City & Guilds qualification (or equivalent) in Water Hygiene
• Has a full UK driving licence
• Ability to pass Disclosure and Barring Service clearance (Enhanced DBS check)

Bonus points if you’ve got a knack for problem‑solving and love a job that keeps you moving and learning.

Benefits

• 37.5 hours per week – 8am–4pm (Monday–Friday)
• Paid overtime available
• 22 days holiday per year plus bank holidays, with an extra day for your birthday after 2 years’ service
• Company iPad & Mobile Phone
• Brand new uniform, equipment, tool bag & PPE
• Modern, fully serviced company van with a business fuel card
• Trade cards for quick access to new supplies
• City & Guilds Affiliated Training Programme – we invest in your professional growth
• Private medical care or alternative cash plan after 2 years’ service
• Enhanced sick, maternity & paternity leave
• 24/7 Employee Assistance Programme
• Employee discount scheme – save up to £240/month on food & groceries
• Core Values Champions Rewards – quarterly peer nominations with vouchers
• Annual development & review process – because we believe in your progression

We’re not your average water hygiene company. We’re a team of passionate professionals who value safety, integrity, and continuous improvement. Every member of our team plays a vital role in keeping people safe and facilities compliant — and we make sure you feel recognised and rewarded for the work you do.

If you’re a motivated engineer who wants to build a career in a company that invests in your growth, apply today.