I have installed new rotors and ceramic pads and sometimes i get squeals almost everyday...
what could this be?
Did you bed them in properly? This is a common issue.
To bed in the brakes go about 45 then rapidly slow down to about 20, do not completely slow down. Do this a few times to get the "bed" in properly if thats still an issue make sure that you are topped off on fluid and you made to put some antisqueal on the backs of the new pads.