Defence wins championships. ⚽ The same is true for heating systems. Once a system is clean, protecting it against corrosion and limescale is what helps keep it performing throughout the heating season. #HeatingEngineer #CentralHeating #BoilerService #WaterTreatment

Rainbow over the Sentinel office this afternoon. 🌈 Summer's on its way out, the rain's back, and heating season is closer than anyone's ready for. They say there's treasure at the end of the rainbow. Turns out they were right! Swipe and see. →

Hands up if it’s raining where you are… 🙋‍♂️🌧️ The heatwave is over! If sludge is lurking in the system, it pays to deal with it before the heating goes back on. Bring in the big guns. JetFlush Rapid+. tackle stubborn debris and get systems cleaned. #HeatingSeason

Every winning season starts on the training ground. Our X800 gets to work in as little as one hour, helping remove sludge and debris so systems are ready for the season ahead. #CleanProtectMaintain #HeatingEngineers #WaterTreatment #SystemMaintenance

Some results are more predictable than others... #ALevelResults #ResultsDay #X100 #InstaDose #Sentinel

Look up this evening , the sun's taking two minutes off... X100 stays working the other 525,598 minutes of the year.

We’re well into boiler servicing season, when working efficiently and having the right kit to hand really matters. What’s the one tool or product you couldn’t be without during a service? Let us know. 👇

The biggest football tournament may be over. Our season is just getting started. ⚽ Championships aren’t won on match day, they’re built in pre-season. The same goes for heating systems. #HeatingEngineer #CentralHeating #BoilerService

Corrosion doesn’t wait for the first breakdown. It often starts long before there’s any visible sign of a problem. That’s why adding inhibitor shouldn’t be viewed as an optional extra. #HeatingEngineers #CentralHeating #BoilerService

Proving water quality doesn’t have to mean sending samples away and waiting for results. With the Sentinel InstaCheck app and test kit, you can test heating system water and generate a professional report for your customer, all from your smart phone. #WaterTreatment

Did you know Sentinel has been nominated across two categories at the ASCP UK 2026 Safety & Compliance Awards? Thank you to everyone across both partnerships who helped get us here. #ASCPAwards #SocialHousing #WaterQuality #Sentinel #Aalbertshydronicflowcontrol

Simply circulating water won’t remove years of sludge, corrosion debris and magnetite that can restrict flow, create cold spots and reduce heating efficiency. Use a powerflush to go further. #Powerflush #HeatingEngineer #SystemProtection

Your heat pump is only as good as the water inside it. Heat pumps rely on efficient heat transfer to perform at their best. That’s why effective filtration is essential from day one. #HeatPumps #HeatingEngineer #WaterTreatment

World Cup fever has hit the Sentinel office! ⚽ #WorldCup2026 #ItsComingHome #Sentinel

The original yellow X100. Now comes in a pouch. A new, more convenient format designed to make life easier on the job. Original protection. New convenience. #SentinelX100 #HeatingSystemProtection #HeatingEngineer

Dosing in tight spaces? Sorted. The new X100 InstaDose and its flexible filling adaptor make light work of even the most awkward installs. See for yourself 👇 #Sentinel #HeatingEngineer #PlumbingTips #Inhibitor #Installer @phpi

Jane is thrilled to announce that we have been shortlisted for two awards at the @ASCP_UK 2026 Safety & Compliance Awards! #ASCP26 #HousingSafety #SafetyAndCompliance #Sentinel #CleanProtectMaintain

InstallerSHOW 2026: a standout few days for our team. Here’s a look back at some of our highlights. Thank you for making it one to remember. #InstallerSHOW2026 #sentinel #CleanProtectMaintain

That’s a wrap on InstallerSHOW 2026. A huge thank you to everyone who visited our stand this week, it was great to catch up. See you at the next one! #InstallerSHOW2026 #InstallerSHOW #SentinelProtects #Flamco #HeatingIndustry

Want to see our products in action? 👀 Archie is running product demos at Stand 5F35, taking you through everything from the X100 inhibitor to our Vortex range. Pop by and watch for yourself. #InstallerSHOW2026 #Sentinel #X100 #VortexFilters