Warwickshire's ability to rattle the back of the Fermanagh net proved the difference in a feisty encounter at Brewster Park.
The visitors raced into an early six-point lead and started the game with much greater intensity than the hosts, earning a penalty which Desmond Kelly fired home.
Just before the break Warwickshire wing-forward Jason O'Dwyer reacted quickest in the large square to flick the ball home.
Fermanagh won their own penalty at the start of the second half with Ryan Bogue converting to put just three between the teams, but Reamonn McEntee and Kelly again added further Warwickshire goals to seal the win.
Man of the Match: S Carey (W'shire)
Scorers -- Warwickshire: D Kelly 2-1 (1-0 pen), R McEntee 1-1, J O'Dwyer 1-0, S Carey 0-3, S O'Hanlon 0-2 (1f), M O'Hara 0-1 Fermanagh: R Bogue 1-2 (1-0 pen, 1f), JP McGarry 0-2, A Breslin, S Curran, P Timoney, K Kehoe, S Corrigan, D McGarry 0-1 each.
Fermanagh -- D McPhillips 6; K Mohan 6, F Bannon 6, C McTeague 5; A Breslin 8, F McBrien 6, S Curran 7; M Slevin 6, R Bogue 6; P Timoney 6, K Kehoe 6, B McGarry 6; S Corrigan 7, D McGarry 6, R Porteous 6. Subs: D Slevin 6 for McTeague (16), JP McGarry 8 for Porteous (50), G Murphy 6 for Timoney (64).
WarWickshire -- L Boxwell 6; P Breen 7, E Hansberry 7, C Vaughan 6; C Brough 6, E Cahill 7, D Neylon 7; J Bergin 6, S O'Hanlon 7; J O'Dwyer 7, S Carey 8, R McEntee 7; D Kelly 7, K Boxwell 7, M O'Hara 4. Subs: S Brough 7 for Breen (45), P Crean 6 for Kelly (61), C Caffrey 6 for K Boxwell (67), D Murphy 7 for McEntee (67), P McHugh 6 for Neylon (69).
Ref -- C Brown (Galway)