Tempered glass door is almost maintenance free. The door shouldn't be pushed to open more than 90 degree in it's open position or pushed to shut by force but by letting it shut by itself. If there is no misuse, it can last until it passes it's life span.
Repair tempered glass door's floor hinge? No. The floor hinge or floor closer as commonly called in Selangor, Malaysia cannot be repaired. The floor closer spoils due to misuse or after passing it's life span.
Service of replacing tempered glass door's floor closer? Yes. If you see the grease stain around the pivot of the floor closer ( as shown in photos 1 and 2 ) that comes with sound of metal friction or the door not closing properly, then it's time to replace a new one.