The balcony glass of the finely decorated house is broken. Is the property responsible for maintenance?

That depends on whether you have closed the house or not. If you don't close the house, you will 100% be responsible for the maintenance. After the house was closed, the glass was broken. You can see if the warranty period of the finely decorated balcony glass in your purchase contract has passed. Which developer developed your community? Generally, large developers have special housing after-sales maintenance centers, which are responsible for situations like yours. No money is needed during the warranty period. If not, you can solve it yourself, or pay the property to solve it.