Residents have attacked their housing association for leaving them to live in "vile" conditions littered with used condoms, spilled curry and rubbish.
Communal corridors and walkways in Kendall Court in South Road, Colliers Wood, have not been cleaned since May 17, residents claim, despite other blocks on the same estate receiving regular cleaning from the Fountain Group which is contracted by Wandle Housing Association to carry out the work.
Elizabeth Elliott, 60, who has lived in the block for nearly 20 years, said: "We were trying to chase Wandle trying to get help because we have had enough.
"They haven’t done anything. Our block is absolutely filthy. There’s used condoms left on the landing.
"There was urine left in a glass. One of the neighbours cleared it up because there are children around.
"We are desperate now - it’s vile. Why should we have to live like this?"
Ms Elliott also raised concerns over a failure to repair exposed electrical cables.
Kendall Court is a listed building which was converted into flats in 1994.
The housing association came under fire in 2009 after residents complained of "sloppy" repair work and a lack of maintenance.
A Wandle Housing Association spokesman said: "We take it seriously when residents are not satisfied with our performance and we recognise there has been a recent gap in service at Kendall
"Our contracted cleaners were commissioned to carry out the cleaning of Kendall Court communal areas most recently on Thursday 30 August.
"Going forward I can assure Kendall Court residents that we will make every effort to ensure they are happy with the service they receive.
"We are organising for more frequent cleans to take place, and this will be monitored on a regular basis by our neighbourhood improvement officers, a newly created position at Wandle whose role is to regularly visit estates to monitor issues and manage contractors."