Peter Murphy's header booked Carlisle their place in the Football League next season after they beat Stevenage in the Conference play-off final.
Murphy headed home Tom Cowan's cross from the left halfway through the first half to hand the Cumbrians victory.
It was a win they deserved and they should have extended the lead, Glenn Murray and Danny Livesey going close.
Stevenage gave it their all but Michael Warner and Dino Maamria were both denied by Matthew Glennon saves.
Carlisle had finished just a point ahead of Stevenage in the league but they looked by far the more accomplished outfit in the early stages.
Derek Holmes and Glenn Murray both went close before Murphy stooped to give his side a deserved lead.
Stevenage almost struck back immediately, but Darryn Stamp's goalbound header from Jon Brady's cross was cleared from danger by Kevin Gray.
Carlisle controlled possession for long periods but could not find the second goal to kill off their opponents.
Magno Vieira gave the Stevenage defence a further headache when he came on as a sub, but it was Graham Westley's men who almost grabbed the goal to take the final into extra time.
Firstly, Warner cut in from the right and saw his left-foot shot deflected over by Glennon, before Maamria's turn and shot from the resulting corner was gathered by the 26-year-old stopper.
Stevenage: Julian, Warner, Goodliffe (Weatherstone 81), Laker (Boyd 52), Henry, Bulman, Gregory, Maamria, Brady, Elding, Stamp (Nurse 66).
Subs Not Used: Westhead, Quinn.
Carlisle: Glennon, Cowan, Gray, Livesey, Lumsdon, McGill, Billy, Beharall, Murphy, Glenn Murray (Vieira 71), Holmes (Hawley 86).
Subs Not Used: Arnison, Westwood, Adam Murray.
Booked: Glenn Murray, Murphy, McGill, Vieira.
Goals: Murphy 23.
Ref: J Moss (West Yorkshire).