Underground
Balham is on the Northern Line with frequent trains to central London via the Bank and Charring Cross branches. Typical travel time to Waterloo is 15/20 minutes.
Monday to Friday 06:14, 06:20 then every two to four minutes until 00:52
Saturday - 06:14, 06:20 then every three to four minutes until 00:52
Sunday - 07:49, 07:54 then every three to four minutes until 00:08
Overground
South West Trains is responsible for Balham station with a frequent service to Victoria (Central London), Clapham Junction, Gatwick and Croydon.