Emergency services were called out when a stricken house boat began filling with water on Sunday.
The London Fire Brigade, Royal National Lifeboat Institution and the Metropolitan Police attended the scene at Greenland Pier.
The boat, named Great Bear, was slowly sinking as it took on water when emergency crews arrived.
A spokesperson for the London Fire Brigade said: “Crews pumped water and were able to refloat it. We believe that the vessel was unoccupied.”
The boat was towed away after the operation, which lasted roughly ninety minutes.