Flames will have the chance to avenge for last year's extra-time grand final disappointment after Callie Michell sparked them to a 1-nil win over minor premiers Services in their major semi-final on Sunday.
Coach Barrie Pritchard said they started off in "pretty good attacking mode", earning their first penalty corner five minutes into the game.
But they were unable to convert their chances into anything tangible thanks in some part to some wayward shooting.
Michell eventually broke the 0-all deadlock from a straight hit from the top of the circle with just under 15 minutes left on the clock.
A noted powerful hitter, Pritchard said it probably wasn't her cleanest contact, with the ball bobbling a bit, but it had the desired effect.
Services had a chance a few minutes later to equalise but Flames were able to diffuse the corner.
"It was pretty tight, the score reflects that," Pritchard said.
Other than those few corners and a couple of field chances that they should have put away, he said most of the activity was between the two 25s.
"The defence from both sides was pretty good," he said.
"Mel Allen and Helena Williamson had really good games for us."
Backing up from the league tag grand final the day before, Kate Ferguson was also strong in the midfield along with Namoi Sparke and Ash Allen.
He said it was good to get through to the decider and said there is a lot of motivation among the group to go one better.
"Losing in extra-time is not much fun," he said.
Services coach Josh Worpel said their biggest problem was that they couldn't create opportunities.
"We just struggled to get the ball forward," he said.
"Flames pressured us pretty hard and we didn't quite have enough movement to get the ball out of the back."
"That's probably what hurt us."
Defensively they scrambled pretty well, with Flames having quite a few chances.
"I thought we did defend pretty well when we had to," Worpel said.