Who removes all the old caulk before recaulking?

A professional caulking-replacement technician should remove the old, failed caulk completely before recaulking a shower or tub. Team Grout does exactly that: we remove the old silicone, clean and dry the exposed joint, then apply and tool new waterproof, mildew-resistant caulking. A fresh bead isn’t a fresh start if the failed caulk stays underneath.