Last year I had a bridesmaid dress that needed alterations. I found a great lady in Plainfield,IL who does alterations out of her house for a reasonable price. I think she did a really good job in a short amount of time. The wedding was in June also.
Most places and wedding shops I found will charge you $60.00 and up no matter how much or how little work needs to be done on the dress. I think this is rather expensive.
If you are willing to go to Plainfield,IL,(she lives near Route 126 and 59)I can give you her name and phone number and she can provide you with more details. Note: She is usually pretty busy around this time with proms and weddings so you should call ASAP.
Let me know if you want her name and number.
Good luck with your search and the wedding!
M. in Plainfield, IL