Waterkloof thumped Florida 41-21 in the Beeld Trophy final on Saturday.
Klofies last won the Gauteng schools title in 2008 as Monument were victorious in the last two campaigns. Florida knocked out the defending champions in the semi-finals, but were outplayed in the championship decider.
Noord-Kaap completed a perfect season by beating Diamantveld 27-20 in the Kovsie final in Kimberley. The win saw Noord-Kaap finish off an unbeaten record as they triumphed in all of their 17 fixtures this year.
In the Cape derbies, Bishops rallied over Rondebosch with a 37-12 win while SACS scraped through for a 29-26 victory over Wynberg. Boishaai won 24-13 at home against Oakdale.
Major school results:
Noord-Kaap 27 Diamantveld 20
Waterkloof 41 Florida 21
Bishops 37 Rondebosch 12
De Kuilen 50 HTS Bellville 26
Paarl Boys’ 24 Oakdale 13
SACS 29 Wynberg 26
Tygerberg 61 Brackenfell 12