From the GOV.UK website
“There are no COVID-19 restrictions in the UK.
However, as Covid-19 is still present, for those of you who need or would like to continue to take precautions to protect yourself or others, I can help you do so in the following ways:
Family meeting
If you would like to meet in person, I can take precautionary measures (wear a mask, ensure that we sit in a well-ventilated room etc.), or we can meet virtually via FaceTime or Google Meet, or we can speak on the phone.
Crematoria
For a ceremony held in a crematorium or other indoor venue, we can keep it well-ventilated and ask mourners to socially-distance and wear masks during the ceremony.
Live streaming and/or recording
Most crematoria offer the opportunity to webcast/live stream and record a ceremony for those unable to attend.
Online ceremony
There is also the option of holding a virtual ceremony, e.g. via Zoom or Google Meet, which can be conducted and attended remotely.