Thames Clippers sent this email to passengers on Friday:

Please be advised that further improvement works to Greenland pier will commence on Monday, 28th January for a period of approximately two weeks (excluding weekends). Please be aware that there may be some disruption as a result. The pier is due to be closed for short periods while the works are carried out, however we will ensure that closures take place during off-peak times. A further update on this will be sent next week.