The Wells made it 5 wins from the last 5 with a spirited display in this bottom of the table clash.
The Bears took the lead after 4mins when former Wells Vase hero Andy Irvine finished well with his first attempt on goal for his new side.
Youngster Dale Ashman scored his first and The Wells's equaliser when he reacted quickest in a goalmouth scramble.
Ryan Crandley won it for The Wells on 71mins with a dipping swerving 25 yard screamer that sent the south stand into delirium!
Next up, The Wells look to kick on with their upturn in form when they face Erith & Belvedere away on Tuesday night .
Kick Off 3pm