Slate hearth chip repair on led fitting This is a slate hearth with LED lights fitted into the stone. The drill hole on one side chipped the stone and the light wouldn't cover the chip. 1 Close up of the drill hole and the broken edge. 2 Over view of the problem. 3 The stone is prepared so the filler can hold on tighter as the top chip is quite shallow. 4 Filler in place and curing while I tidy up the drill hole. 5 Overview now looks neat and not broken, ready to fit the LED back in. see more repairs