Really, really poor - plumber turned up over 4 hours late and shut down the boiler due to some irregular readings… 5 days later we were still without hot water and absolutely no sign of this issue being solved. I rang 7 times for an update and every single time I was given a lame excuse blaming the supplier or that the issue is somebody else’s responsibility and that i will get a call back that evening (7 times I’ve been told they’ll call me back - I have not been called back once!…)
FYI - I called another plumber this afternoon and he was round and fixed the problem within 2 hours…
Hugely unprofessional and horrendous customer service from start to finish