The property changed the lock on the door.

No one broke the law and there was no good communication.

According to my understanding:

Is the unit lock to be changed? This requires property leaders (preferably landlords or industry committees) to send a notice to tell everyone that if most people agree, they will collectively share the money to change the locks.

The services of property management companies mainly include the maintenance and minor repairs of public facilities and equipment such as security, cleaning and greening. You can look at the service items of the property management company in your neighborhood, because you don't know where the water leaks, so it's hard to say if the water pipe leaks, that is, if it's your own water meter, you are responsible, and the water company or the property management company will repair it in front of it. If the main pipeline leaks, the cost will be shared by the beneficiaries (several owners) and maintained by property professionals.