How do i scale surfaces?

How do i scale surfaces? I have made a rough "skeleton" of extruded boss and bases and made cosmetic features via boundary surfaces and fill surfaces. I've knitted them together to mirror the part and then i noticed i made it too big. Is there any way to scale the surfaces? I have tried using the scale tool and scale about centroid and origin but this only scales the extruded features.

Thanks in advance.

SolidworksParts And Features