Goals from Lauren Denbury and Sarah Lojko inside the first two minutes got the Glassgirls off to a flying start, before Lojko added a third midway through the first half.
Gornal pulled a goal back ten minutes from the break, but top scorer Lojko completed her hat-trick almost immediately to restore the three-goal cushion.
Shannon Hayes made it 5-1 ten minutes into the second period and the Ladies saw the game out from there in spite of a late consolation for the visitors.
Stourbridge will now play Starland St Annes in the Final after they beat Boldmere St Michael Ladies 1-0 in the other semi-final. A date and venue for the match will be confirmed in due course.