Looking for a evening cleaning job in London, where do I begin?

[Vixxxen]

Looking for a job for my friends and possibly for myself.

Have been to Gumtree and google but have had no luck so far.
Do I need to go to the Job centre or is there a website where I can find local office/shop cleaning in the evenings?

Gov.uk ...that's where you can find all the jobs advertised via job centre plus

Thanks