I guess there is something getting on your screen which is causing them to go squeeky ..
What windscreen wash are you using - try changing it / using just water.
What car cleaning products are you using (i.e. is there some sort of soap/wax all in one that is going on the screen?) - Garage car wash are the worst for that.
What windscreen wash are you using - try changing it / using just water.
What car cleaning products are you using (i.e. is there some sort of soap/wax all in one that is going on the screen?) - Garage car wash are the worst for that.