We protect heating and hot water systems by providing best practice solutions and products internationally.

We have a comprehensive range of products supported by approachable experts to help you achieve best practice protection for domestic and commercial systems, protecting against limescale, corrosion and accompanying problems which can cause inefficiency or failure.

Product Manuals and Guidance

Instructions, dosing information and FAQ's for our chemical, filter and scale protection products.

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FAQs and Support

How to Guides, product videos, training and much more support materials, designed for you.

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Check Water Hardness

Use our simple postcode checker to find the hardness of the water in your area.

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Air Source System Solutions

Keep up to date with how Sentinel can help treat your air source/air to water heat pump system and make sure it is running efficiently.

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Product Selector

Not sure what products are best for the job? This is a simple tool to quickly help you find the best practice solution. In 3 questions or less, it'll show you the products best suited to your job.

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Sentinel Product Range