how commen are faulty window regualtors on buick regals?

[Anuraj]

I have a 95 buick regal custom (3.8) and my window "fell" down during highway driving and now it wont go back up, is this a commen problem with these cars? How easy is it to fix?

 

[Mark]

Very common. Price depends on 4dr or 2dr. Two hours.