I was visiting Montreal for a month and had my car here. After going to the mountains and camping, it became quite dirty.
Generally I always wash my cars myself, two bucket method and everything. After searching around for a hand car wash I came across this one and I liked what I saw as far as review go. These guys are good at what they do!
It takes about 20 minutes per car, so prepare to wait a bit, but it's totally worth it. Your car will be washed, and completely dried using towels and compressed air as well in order to avoid any water dripping out after you leave. I've walked around my car after getting home and I didn't see any water anywhere!
You'll also be impressed by how quickly these guys work. They definitely deserve a tip from every customer.
As of this review they only accept debit cards and cash, in case that matters.