As a result of the delays, families of residents living in poorly rated care homes did not always know whether improvements had been made.
The family of one 24-year-old man who died in a Cornwall care home have called for homes to be inspected annually.
Lugh Baker died at Rosewood House care home in Launceston, Cornwall, in 2021.
A coroner found failings in relation to his care plan and gaps in monitoring after his death, which remains unexplained.
The CQC inspected in 2022 and 2023, telling the home it needed to make improvements, but it has not been back to inspect since.
Mr Baker's mother, Trudy Polkinghorn, and sister, Erin Baker, said they felt "despair" and were disappointed in the regulator.
The CQC said it had been "regularly monitoring" the service through information it received and the home said it had acted on every recommendation in the coroner's report.


