The side set their stall out early, winning their first six matches and ended the campaign with 18 wins from 22 league games.
“It’s been a long time coming,” said proud club treasurer and long-time chairman Ian Davies. “We’ve had a couple of good seasons where we’ve been pretty close, but it’s all come to fruition this year.
“Our coaching staff and the players have been so committed, very focused and we’ve finally got what we deserve.
“The pleasing thing about it as well is that we’ve played some really good attacking rugby so that’s been great.”
Picking out their 20-5 win at Ystragynlais back on November 18, Davies said that might have been one of the key moments in Celtic’s season.
“They are always a tough team to beat up there. We managed to get a really good win over there and I think that was the spark and made us realise we were looking good this season.”
The Celts will now soak up their title success before switching their focus towards next season in One West Central.
Davies added: “It’s great that we’ll be going up a league but it also gives us an opportunity to play some more local derbies as well.
“From our point of view, it draws in the crowds so it’s good news all round.
“Maesteg will be in the same division and Maesteg Quins could be if they don’t get promoted in the play-off and, if that’s the case, then it’ll be a really exciting year for everybody in Maesteg.”
