I am having some vinyl shutters installed next week to my vinyl-sided home. The installer claims that he will not be able to put the new shutters in the same holes that our old shutters used because the holes will be too large and won't hold a screw. Is the installer correct or does he just want to drill new holes because it would be easier? If the holes really will be too large, is there anything that can be applied to the holes to make them smaller so they will accept a new screw? I do not want new holes drilled into our house unless it cannot be avoided. Thanks.