Thought this would be useful as a separate thread, since a lot of brides probably require this service. Sorry about the re-post!
I had my dress, veil, reception dress, and FI's suit steamed by Vanessa Thompson (Silver Stitch). She works out of her home in Luana Kai Condos (on S. Kihei Rd - easy to miss it!). Her phone number is 808-879-0439 (no e-mail).
Call Vanessa maybe a couple days or one week in advance to book an appointment. Try to pick up your dress at the last moment possible (i.e. day before the wedding), so the dress doesn't get wrinkled and looks in tip-top shape.
Vanessa offers probably the best prices on Maui for dress steaming. She works out of her home, but she sure knows her stuff! (She gave me so many tips about how to wear my dress - it sounded like a science, LOL!) She's also unbelievably nice.
One tip...Vanessa offers different pricing if services are booked via a wedding coordinator. The coordinator usually adds a service charge on top (i.e. the standard 20%). Maybe check with your coordinator whether she/he works with Vanessa? Or check with Vanessa how much she would charge if booked directly... In our case, we found booking via our coordinator resulted in SUBSTANTIAL savings...it was crazy/unbelievably cheap...
Thanks to Vanessa's advice, she reminded me that I needed a crochet hook for helping to undo buttons on the back of my dress...I hadn't realized this! (BTW, they're available at the Maui Quilt Shop) She also gave tips about how to put the gown on properly, etc. Saved us a lot of little inconveniences on the day-of! Highly recommend