Disabled and elderly residents of a sheltered housing block fear their lives are being put at risk because the two lifts on which they depend keep breaking down.
Tenants of Hugh Clarke House, in Singapore Road, West Ealing, claim they were told nothing can be done until April next year to fix the lifts, despite several residents being unable to use stairs.
Tenant James Reilly, 60, said: "The lifts are breaking down constantly and people are being trapped in them. It happens at least once a week.
"We have people on zimmer frames and motorised scooters and if both lifts break down they are trapped in their homes. We're just waiting for some terrible disaster."
Around 50 people live in the three-storey block, many of whom find it difficult to get around.
Catalyst Housing Group, which runs the block, has now promised to investigate.
A spokeswoman said: "We want to do everything we can to minimise the disruption and concern caused by the recent breakdown in the lifts.
"Our head of asset management, together with our lift contractor, is now arranging to hold joint special meeting with residents next week to hear their concerns, examine the lifts in further detail, and explain the actions that we can take to rectify the problem.
"Should our investigative work show that we need to totally renew the lifts rather than replace old parts, then we will most certainly do this."