If you want a 'brake kit' just because it is squealing, don't bother. Rectify the issue of it squealing. Could be shims missing on back of pad, dust,foreign objects, pad compound, low pads etc
The people who 'fix brakes' and say it is common are people who can't be f**ked looking at your car. I have looked at a few with squealing issue but it is by no means common or normal.
Take it elsewhere.
If your looking for better performance from your brakes let us know and people will be able to recommend brakes that may suit you.