We clean, protect and maintain domestic and commercial 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. Follow us on Twitter - http://www.twitter.com/sentinelhq Like us on Facebook - http://www.facebook.com/sentinelCPM Follow us on Instagram - @sentinel_uk_insta Subscribe on YouTube - http://www.youtube.com/sentinelperform