The test for work done in the home during lockdown was whether or not the workperson was willing to do it - not the urgency or lack thereof
We had a leaking roof during lockdown and found that just over half of the companies we contacted were on furlough and not undertaking work, while the remainder were willing to inspect and quote
Your first para is totally wrong. The Criteria was if the work was ESSENTIAL . So yes to a leaking roof which can cause damage to the fabric of the building.
I know some trade people who were fitting a new kitchen in the EMPTY home of an elderly lady who was in hospital. The neighbours called the police who attended and told the tradesmen that :
The new sink was essential as was the base unit in which it was fitted. But the wall cabinet and other base units and worktop were not.
And the electrician was allowed to do the sink, cooker and fridge . But the under cabinet lighting and supply for the dishwasher were not essential.
The plumber was ok as the sink was essential but the joiner and electrician were fined.