My bathroom was remodeled by a non-pro who put drywall in between the existing tile wall and the new tub surround. Now the cold and hot on/off knobs won't fit because the stems they mount on aren't long enough due to the additional dry wall. Extensions to the stems were suggested, but none could be found. Is there a way to fix this? It's currently impossible to turn the water on and off! Thank you

My bathroom was remodeled by a non-pro who put drywall in between the existing tile wall and the new tub surround. now the cold and hot on/off knobs won't fit because the stems they mount on aren't long enough due to the additional dry wall. extensions to the stems were suggested, but none could be found. is there a way to fix this? it's currently impossible to turn the water on and off!! thank you
Hard to say w/out knowing the brand and model #.

They do make stem extensions for certain brands but since you haven't provided any details we can't be of much help. Regards, Tom