Asbestos dust has been found at Seven Islands Leisure Centre during a routine survey.
The centre’s swimming and shower facilities will now be closed until March 9 while the problem is rectified. The toxic dust is isolated and customers are at no risk, according to Southwark Council.
The deadly substance was discovered during an inspection held in advance of more wide-scale improvements works planned to begin in May.
Cllr Barrie Hargrove, cabinet member public health, parks and leisure said: “It is important to deal with this asbestos quickly and efficiently, and while I understand a short notice closure of the pool is inconvenient for users, for the works required it is unfortunately unavoidable.
“I hope users will take advantage of our Camberwell or Peckham centres in the meantime, and when the main improvements works begin in May, they’ll be able to use the brand new facilities at The Castle while their local centre is being improved.”