Squeeling coming from front end...

HELP!!! I was told it might be the wheel bearings... if this is true, how hard is it to fix and about how expensive??? At first it would come and go, like when I would steer to the right or left at a higher speed than 40mph(even slightly) it would happen... but lately it seems constant. It feels like it is starting to affect the steering too! I just had my brakes redone a little over a month ago... should they of said something? I need a ton of advice on this... PLEASE... Thank you all!!!!