The home team were value for the three points having enjoyed the better of the chances in what was a high octane first half against the defending league and African champions.
The deadlock was broken in the 70th minute when Thabo Mosadi tapped in from close range and only two minutes later their lead was doubled as Ndiviwe Mdabuka sealed the win.
The Urban Warriors jump out of the relegation zone and continues their mine renaissance under new coach Stanley Menzo.
While for Sundowns they remain mid-table with a handful of games in hand and one eye on the Club World Cup.
