We are unable to determine the cost it will be to alter your gown until the seamstress assesses the fit. As a consideration, we have presented you with an alterations cap for all alterations as indicated on your original agreement. This cap will be honored based on the measurements taken at the time of the order. If measurements have changed (for example in the case of pregnancy, surgery, etc) and unforeseen work needs to be completed as a result, we may not be able to honor the cap, also indicated on the original agreement. Our seamstresses are extremely skilled and will do everything in their realm to create a top quality alteration.