Drywall repair in Markham often follows a change to the lighting. Houses through Unionville, Milliken and Berczy were built with pot lights and ceiling speakers in fixed spots, and when those move, the old cut-outs are left behind as neat round holes in a painted ceiling.
I am Sercan and I take the repair end to end. Round holes need backing and a proper plug, not filler pushed into the gap, or the circle shows through the paint within a year. I cut a clean shape, back it, board it, tape it and sand it flat.
