Noise alone does not decide the repair. We measure rotor thickness against the manufacturer's service limit, check runout, read the pad wear patterns and cycle every caliper. Rotors that are scored but still thick enough get resurfaced; rotors below spec get replaced, because a thin rotor that looks fine on the bench can still warp on the next hot stop.
The hydraulics are where the safety actually lives. A soft or sinking pedal usually points at air or moisture in the fluid, a hose that is swelling on the inside, or a caliper that has seized on one side. We test the fluid, inspect the hoses, replace anything that cannot hold pressure, and bleed the system end to end.
Estimates are free and written down, and we do not start work that was not quoted. If something else turns up with the wheels off, the vehicle goes back together and you get a call with your options and prices — including the option to do nothing today.