Is the maintenance of commercial housing under the control of the property company?

Mainly depends on the service content of the property service contract you signed. If this service is included, it will be managed by the property management company. If not, it depends on the maintenance project and warranty period. The owner is responsible for the maintenance of the self-use part. If the self-use part has not passed the warranty period, the developer is responsible for the maintenance. You can contact the developer through the property.