Actually I think you should test at stages determined by the highest pain level of what you have to do if there is a problem found.
That may well be at the end, if the worst is that may happen to fix any likely problem is that some sockets have to be unscrewed and a wobbly board lifted, or some polyfilla mixed.
If however it might involve chiselling up an elaborate marble bathroom worth more than the rest of the job, or some similar expensive works, either time or money to correct, it makes sense to test at an earlier stage. Underfloor heating under stone slabs for example, may be worth a more serious check over, prior to the floor laying.
The parallel in computing is to save a backup whenever the amount of work you have done is enough that it would be too time consuming or difficult to recreate if lost.
Actually I think you should test at stages determined by the highest pain level of what you have to do if there is a problem found.
That may well be at the end, if the worst is that may happen to fix any likely problem is that some sockets have to be unscrewed and a wobbly board lifted, or some polyfilla mixed.
If however it might involve chiselling up an elaborate marble bathroom worth more than the rest of the job, or some similar expensive works, either time or money to correct, it makes sense to test at an earlier stage. Underfloor heating under stone slabs for example, may be worth a more serious check over, prior to the floor laying.
The parallel in computing is to save a backup whenever the amount of work you have done is enough that it would be too time consuming or difficult to recreate if lost.
