My windscreen has a chip and a small crack in it that is developing. The screen is the original renault one, I was going to phone the insurance company and get the screen replaced but before i do has anyone else done this? is there anything in particular that needs to be looked out for?

Years ago I had a screen changed on my clio 182 that cracked, it was replaced with a much cheaper looking one that looked naff around the tinted edges compared with the original.