The Freecycle Network, Westminster group
It's a grassroots and nonprofit movement of people who are giving (and getting) stuff for free in their own towns and neighborhoods: https://groups.freecycle.org/group/WestminsterUK/posts/all
Bulky Waste Collection by Westminster City Council
Items that are too big for your standard rubbish bag or bin, as well as all electrical items, need specialist handling.
Local community social network
London’s independent volunteer scheme providing free services to the homeless.