Dan Roberts cancelled out Seager’s first effort, but the Crusaders fought back to register a well-deserved three points in the Berkshire derby.
The visitors wasted no time in applying pressure to the Slough back four and soon took the lead in the sixth minute. Winger Craig Fasanmade produced a fine move down the right before swinging a pinpoint cross to an unmarked Seager, who made no mistake in finishing from close range.
Hungerford thought they had doubled their advantage shortly after the restart when Seager found the net, but the linesman’s flag was raised to deny the forward another early goal.
Slough fought back and equalised in the 32nd minute. Fine build-up play from Max Worsfold and Malachi Linton allowed the latter to expertly pick out striker Roberts, who calmly chipped goalkeeper Luke Cairney to level the score.
But the away side recognised the mounting pressure and responded by retaking the lead just before the half-time break. This time there was no offside flag to prevent Seager from calmly slotting past Jack Turner to make it 2-1 to Hungerford.
The restart saw Hungerford form another early push with hopes of catching out the Slough defence. And the visitors were successful after Fasanmade pounced on a loose touch from Turner before rolling the ball into an open net in the 53rd minute.
Jon Underwood and Neil Baker’s men attempted to force an opening to pull the Rebels back into the fixture, but a well-organised Hungerford defence restricted the Slough attack to several strikes from distance.
Substitute Paul Hodges came close to reducing the deficit for the hosts when his effort from outside the box edged just wide of Cairney’s far post.
And there for more late drama at Arbour Park when Curtis Angell brought Hodges down in the penalty area to give the Rebels a lifeline. Roberts stepped up for the spot-kick but Cairney produced a fine save to deny the forward’s second of the fixture.
Slough showed resilience and continued to search for a goal, but Cairney was on hand again for the visitors, this time stopping Warren Harris’ goal-bound header from finding the net on the 90th minute.
Report: Daniel Lewis
Hungerford Town Line up
Cairney, McGrory, Angell, Emmerson, Rusby, Jones, Willmoth, Seager (Edwards 87), Fasanmade (Hopper 86), Bailey, Berry-Hargreaves. Unused substitutes: Harding, Tooze, Alderson.