COAGH took the lead in the seventh minute through Lamont but Corner were level on twelve minutes when McAteer netted for the home team.
Right on half time Coagh again took the lead when Clarke scored to give his team the advantage going into the break.
Battling Chimney Corner levelled for the second time on 58 minutes when Willigan equalised.
But the 'not to be outdone' visitors went 3-2 up 2 minutes later through ThoRnton.
Lamont suffered a bad injury on 65 minutes and the game was held up for quite a while until Campbell (78) and Gillespie (84) and (86) finished off the home side and secured the points for United who ran out deserved 6-2 winners.
Chimney Corner: Rowan, McAuley, Devine, Walker, McMullan, Kirkwood, Willighan, Carson, Mateer, Gray, Anderson subs McKeown (not used), Nutter (replaced Kirkwood 18), Wylie (replaced Anderson 75), Todd (replaced Mateer 52)
Coagh United: Yorke, McGeown, Ferguson, Calderwood, Thornton, Park, Lamont, Donaldson, Campbell, Dallas, Clarke subs Gillespie (replaced Campbell 73), Scott (replaced Lamont 66), Black (replaced Clarke 80)