Or do it your self there plenty of videos on tube or search on here, a lot cheaper and you have the satisfaction of knowing you can fix a leak in a bladder in less then an hour if you dont have time to drop a kite in and wait a week before it gets back to you.
If its a big canopy repair by all means a shop would be better suited but bladders and small rippers to canopys are a piece of piss.
Jut my opinion I always like to DIY before I pay for anything ha in other words im CHEAP!