Our house is about 5 years old and has a one piece fiberglass shower that recently developed a leak in the drain above a finished garage. I removed the dry wall to access the drain and see that the leak is coming from where the drain attaches to the base of the shower. How do I repair this?

Can you snap a picture of it and post it ? ( from above and from below and get close with your camera ). Do you have plastic drains ?

Once I see what type of drain you have, I will tell you how to proceed with repairing it.

A picture of the drain top and bottom would help. Does the shower have a drain screen on the floor, try to lift it at the edge.