The question most of you are asking us is 'What is Essential work?'
In a nutshell essential work is anything that is required to:
Either support essential services and critical infrastructure
Maintain Human Health and Safety at home or work
Or involvement in any consenting work to support the above two needs
For example, working on repairs within a supermarket or fixing the power in a home that has lost it would be considered essential services whereas completing an extension or starting a new build would not.