Never again... I really cannot recommend H2 after a recent very negative experience. Following a callout to fix a radiator, their engineer switched off all the radiators without informing us, then left promising to send a report, leaving us with no heating at all, a far worse situation than we started with. When I called them urgently about this on the day, they promised to call back after speaking to the engineer, but they never bothered, and now with no heating, we ended up getting the problem fixed by someone else that evening for £75. Partly to address the problem they'd caused, by simply opening the valves they'd left closed, and partly by draining the radiator that wasn't working. After hearing nothing but noticing I'd been billed, I called them and they said they'd sent us a report the following day (as if this somehow made up for not calling back on the day) regarding the work needed. I subsequently retrieved their report from spam and was surprised to see that the estimated cost to repair was over £400, quite a bit higher than the £75 we ended up paying someone else. When we questioned their poor handling of this matter, they were rude and extremely defensive. They have billed us over £130 for the 'work done'.