Join us in our quest to build the best water treatment, water hygiene, air quality and testing company in the UK.

WCS Group leads the Water Treatment and Water Hygiene division of Marlowe Critical Services. We are the UK's largest water safety specialist providing mandatory water, environmental, heating/cooling and related water engineering safety and compliance - nationally. We get the best water treatment and hygiene jobs because we employ the best people. So, were always recruiting, training and investing in existing and new talent.

At a glance


800+ staff


33+ of the top 100 UK universities


7,000+ customers


25% of all UK commercial swimming pools


3,000+ major industrial sites


7 sports stadia including Premiership


8 UK airports


2,500+ NHS sites and care homes


15,0000 social houses

You don't have to be a water engineer to work here.

Our administrators, project managers, contract managers, sales, marketing, laboratory, warehouse and service staff work on customer needs up and down the country including many famous buildings.

Book a legionella risk assessment

Our culture, core values and career pathways.

What sets WCS Group apart is our team; our most valuable asset, and we treat them as such. For people who meet our cultural imperatives; excellent customer service, doing the right thing, right first time, honouring our promises, empathetic in outlook, confident and 'Can Do' but flexible approach, and always learning, WCS Group is a happy and rewarding place to work.

Our Values

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We work hard to earn and retain trust and respect We also always deliver on our promises.

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From the speed of response, access to technical insights and utmost consideration for other people, business and the environment

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We value the ability of our staff and company to honour commitments to customers and each other and continually Learn and improve.

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We are dependable not only for the solutions we provide, but also for how we carefully manage the relationships we develop.

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