London remain firmly anchored at the bottom of this group after this defeat at Ruislip, and with their final game against promotion hopefuls Offaly the position is not expected to change.
The hosts controlled the play for long periods but their forwards failed to turn possession into scores. Missing a penalty midway through the second half did not help.
Antrim impressed in defence, where Gearoid Adams, Martin Mulholland and Anthony McGrath were seldom caught out of position.
Particularly impressive for the home side, who are building towards the Connacht Championship game against Roscommon early in June, were Pat Rafter, Ciaran Byrne, Julian Grimes, David McGinley and Mick Galvin, who proved to be London's best forward in spite of his penalty miss.
Antrim: S McGreevy; E McLarnon, M Mulholland, A Finnegan; G Adams, C McKerney, A McGrath; J Quinn, C Coleman (0-1); K Brady, J Barr (0-1), O Doherty (0-1); E McCann, P McCann (0-2), K Madden (1-6). Subs: D Gallagher for E McCann; A Morris for E McLarnon; J Wilson for C Coleman; R Hamill for K Madden; B Elliott for A McGrath.
London: D Kelly; N McSherry, C McCarthy, B McDonagh; C Lynott, P Rafter, N Lynch (0-1); T Murphy, C Byrne; F Downey, M Galvin (0-3), D McGinley; J Ryan, J Grimes, T McGivern (0-1). Sub: P Coggins (0-2) for C McCarthy.
Referee: E Mangan (Kerry).