A fly infestation has forced the temporary closure of council-run Powbeck House in Whitehaven.
The home is expected to close for around five weeks for fumigation, the News & Star reported.
A council spokesperson said: “The welfare and comfort of residents and staff is the number one concern and whilst this work is underway it is not suitable for them to live and work in these conditions. A decision has therefore been taken to relocate the residents and staff.
“We have now met with residents, families and staff to discuss the situation and are making arrangements to move the 18 residents into other local Cumbria care homes.
“We appreciate that any move can be unsettling and we’re working hard with those affected to minimise disruption.”
The spokesperson said the council was considering allowing moved residents to stay where they were until the completion of a new £6m, 60-bed care home in Hensingham.
The new home, offering care for those living with dementia and complex care needs, is due to open in the spring. It will replace four existing facilities, including Powbeck.