We repair Nikon Speedlight and Canon Speedlite Flash guns on a regular basis, here at CPS. We often receive repair requests from media corporations and law enforcement and it is our goal to repair these units as quickly as possible. In the case of hot shoe replacement we usually get the units back to the customer in less than a week*. We can diagnose any problems you are having with your flash gun and typically have it ready for pick-up or delivery in a couple weeks.
*Repair times are approximate and can vary depending on parts availability and seasonal repair fluctuations.