If you are moving in during the summer, it is safe to say testing the heating system is an unlikely thing on your checklist! During our new build snagging inspection, we check that not only radiators are fully heating but fundamentally if they have been correctly connected.
What we mean by this is shown in the example photographs from recent inspections: Sometimes we find that the heating engineers accidentally connect ground floor thermostats to the upstairs heating loop. This may sound simple enough, but it can be one of the most destructive issues to investigate; because to find the cross-connection often means cutting through the ceiling and pulling apart tiling etc to find it.
