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From our beginnings in 1992, our commitment to offering the best possible controls has enabled H2O Chemicals to help customers across the UK to maintain a safer working environment.

H2O Chemicals celebrated their 21st year of trading in style, with significant developments in the business that are already bringing new value to our customers and further strengthening business activities across the country. Here are some of the highlights.

We started as a Water Treatment company preventing Scale, Corrosion and Microbiological Fouling in Heat Exchange systems. This heritage provides a strong technical base to provide Legionella Control but since legionella is contracted by breathing contaminated water droplets many of our clients asked about Indoor Air Quality. As such we were at the forefront of developing the testing regimes which are now taken for granted. Our strong technical base also provides our commitment to our training programmes some of which we offer to our customers in the form of our legionella and IOSH training but many more are reserved for internal use to ensure we equip our field force with the competence they need to maintain our high level of customer service.

At the core of our service delivery is Legionella Control. As such, we are a leader in this field of environmental control. Our products and services extend beyond water treatment into other areas such as Air Hygiene and Health & Safety training.

Water Treatment Water Hygiene Air Hygiene Training Services

Regardless of which of our extensive market sectors you fit in to, wherever you are within mainland Britain, H2O Chemicals can deliver the services and expert advice you need to keep your business space safer.

It can also save you money. We can prove it.

Browse our website or ask your H2O Chemicals contact to show you how.


From our very beginnings, quality has permeated everything H2O Chemicals do. We gained BS5750 (precursor to ISO 9000) in 1996 and our current accreditation to ISO 9001 covers every aspect of our work. Not only supply but design of products and services are included in our accreditation. Our quality systems drive continuous improvement resulting in the many innovations we have and continue to introduce. H2O Chemicals are ideally placed to help our customers take advantage of the changing conditions in the business and H&S environment.

Protecting the Environment

Our ISO 14001 accreditation drives control by managing our impact on the environment. We provide local teams to deliver our full range of services. We minimise fuel use by ensuring we track miles driven. The use of paper based systems taking up valuable space is a thing of the past. We minimise paper use by effective use of Information Technology. All H2O Chemicals technicians are equipped with smartphones to ensure communication doesn’t depend on paper. The use of Electronic Log Books throughout our customer base means that H2O Chemicals clients eliminate paper usage and regain the extra space which was previously assigned to record storage. Our systems are simple, reliable and accessible and are available on a web based platform. Chemical products are selected based on their environmental impact and as a business with a chemical heritage we understand the impacts chemicals can make. 

Health & Safety

We put H&S at the beginning of everything we do and have worked hard to create and maintain a true H&S culture. The safety of our staff and those around them, the safety of the work we do and the environments in which we work, are of paramount importance to everything we do. Whatever the situation, you can be confident that we will always put H&S considerations before all else. Our H&S policy with its acronym SMILE - Systems-Materials-Information-Location-Environment, engages not only our staff but customers too. H2O Chemicals’s Health and Safety training division delivers a range of in-house courses and is accredited to deliver the range of IOSH courses. All of our staff are required to pass those courses relevant to their role and all managers hold the IOSH Managing Safely qualification.