front brakes are staying stuck on.. both calipers were changed and problem still on 2003 Chevrolet Trailblazer

And why where the calipers replaced? Jack up the vehicle and remove the wheels , pump the brakes , check to see if the rotors are stuck , if they are , open the bleeder screw and see if that frees up the rotor , if it does I would suspect faulty hoses.
Thank you for your help...