By far, and without question, use Island Alterations on James Island. They have a long history of alterations for formal, pageant dresses, and I have personally used them to alter ALL formal dresses with enormous success.
Americlean in North Charleston has become a favorite destination for bridal alterations. Friendly service, professional quality, always on time. You can find us on the web at www.americleansc.com or simply call (843)553-6301, ask for Marti.