Our mission is to make best practice solutions simple. To help you achieve optimum performance and reliability for every hydronic heating system you work on, follow our best practice process of clean, protect and maintain. Whether you’re commissioning a new system or revitalising an old one, the benefits of adhering to this best practice include improved performance, increased energy savings, and longer system life.
Find out moreThe use of Sentinel water treatment is endorsed by all major international boiler manufacturers to protect their products: our products are regularly recommended by name in boiler installation manuals. The relationships we have with the heating industry manufacturers extends beyond our reputation for quality products which perform effectively to training and other bespoke initiatives which ultimately benefit you, the installer.
Find out moreWe’ve developed a comprehensive support section, featuring FAQs, how-to guides, videos and other resources that you can access from a single search bar. We hope it will help answer any questions you may have about water treatment and Sentinel products.
Find out moreSentinel is a company with a clear goal: we offer water treatment products and services that provide the best lifetime protection for heating and hot water systems. Originally launched in the UK by Grace Dearborn in 1988 and subsequently a subsidiary of the leading multinational General Electric, Sentinel has operated independently since 2005, expanding its international reach and range of innovative solutions. As of 2021, Sentinel is owned by Aalberts N.V., and sits in the hydronic flow control cluster.