The project will cost approximately £130,000 and work is due to be completed by the end of December.
Built in 1723 by famed Newbury engineer John Hore, Southcote Lock is an important landmark in Berkshire's waterway history. After falling into disrepair, the lock was closed in 1952, before being lovingly restored along with the rest of the Kennet & Avon Canal by teams of volunteers throughout the 1970s.