Even your BCD needs to be serviced now and then. Don't wait until it gives out on you. Bring it in with your regulator for an annual inspection -- we'll check the bladder for leaks, the inflator for proper inflation, and make sure that the dump valves operate properly.
Cost & Turnaround Time
$60/hour - though if everything is working fine you're only charged $15
$45 plus parts for inline regulators (ie - SS1, Airsource, Octo Z, etc)
Turnaround is approximately 2 weeks. If you need it sooner, a rush job can be arranged for an additional fee.