This is the guidance to offices published by the Government during Covid
PowerPoint Presentation (publishing.service.gov.uk)
"To help you decide which actions to take, you must carry out an appropriate COVID-19 risk assessment, just as you would for other health and safety related hazards. This risk assessment must be done in consultation with unions or workers"
Businesses and workplaces should make every reasonable effort to ensure their employees can work safely. When in the workplace, everyone should make every reasonable effort to comply with the social distancing guidelines set out by the government (2m, or 1m with risk mitigation where 2m is not viable is acceptable).
Where the social distancing guidelines cannot be followed in full, in relation to a particular activity, businesses should consider whether that activity can be redesigned to maintain a 2m distance or 1m with risk mitigations where 2m is not viable. â–ª Further mitigating actions include
Further increasing the frequency of hand washing and surface cleaning. â–ª
Keeping the activity time involved as short as possible. â–ª
Using screens or barriers to separate people from each other. â–ª
Using back-to-back or side-to-side working (rather than face-to-face) whenever possible. â–ª
Reducing the number of people each person has contact with by using ‘fixed teams or partnering’ (so each person works with only a few others).
Where the social distancing guidelines cannot be followed in full, even through redesigning a particular activity, businesses should consider whether that activity needs to continue for the business to operate, and if so, take all the mitigating actions possible to reduce the risk of transmission between their staff
You should ensure that steps are taken to avoid people needing to unduly raise their voices to each other. This includes, but is not limited to, refraining from playing music or broadcasts that may encourage shouting, including if played at a volume that makes normal conversation difficult. This is because of the potential for increased risk of transmission, particularly from aerosol transmission. We will develop further guidance, based on scientific evidence, to enable these activities as soon as possible.