Costs to fix 2nd floor shower leaking in downstairs?

[Jon K.]

I've been trying to save money, and even am getting a roommate.

Now I've got a 2nd floor shower leak, leaking downstairs onto tile kitchen.

It's a stall shower with plastic shower floor. Shower & pipes ~10 years old. Has pipe with connecting joint I think.

It's leaking enough on my downstairs ceiling to make a few inches of drywall fall off. It only leaks when used. It's not gushing, but enough to need fixing.

There will be about a 1.5 x 1 foot ceiling repair patch that will need new drywall and paint. Plus, fixing the shower leak.

I'm tempted to try to open the ceiling and try to patch it up myself if this could run me over $1000 to call a professional. I know this isn't enough info to give me a "real" estimate, but I'm hoping to get an idea of what price range to expect. $500? $1000? $1500? More than I want to even think about?

I have a home warranty, but that doesn't appear to pay for this.

Has anyone had this happen before?

Any ideas on what kind of costs I can expect if I call a plumber/professional?