I usually do my dry clean here, winter clothes etc, for many yrs alr:
Modern Laundry & Dry Cleaning Services
1 Yishun Street 23
#03-27 YS-One
Singapore 768441
My gown is a convertible gown with intricate lace and beading - so there is a separate fluffy part, and a slimmer A line gown inside. Cost me $80. Apparently they do laundry for other bridal shops too. For suit (just jacket, i didnt include pants), it was $7.50. Shouldnt be too ex w pants!
Slight downside was that I left my gown till 1-2wks after my prewed shoot before i sent for laundry. And it was quite muddy, so some parts of the lace at the bottom didnt turn out to be 100% clean, only can tell if you magnify it alot.