Why do property companies exceed their authority to manage residents' water, electricity and heat bills?

The question is not clearly described and can only be answered according to your own understanding.

In principle, property companies only have the problem of ultra vires treatment, and there is no problem of ultra vires management, because property companies have no right and ability to manage. The State Council is in charge of water, electricity and heating.

The so-called ultra vires is mostly a misunderstanding. Property companies may collect and pay on their behalf. Take the place of the State Council.

And these things, many times there is no way. For example, a park uses temporary electricity. Temporary electricity owners have no way to pay directly, and the fees must be handed over to the property company, which will then transfer them to the power supply bureau.

There are mandatory charges for water, electricity and heating when the new commercial housing moves in, but these charges are paid by the developer to the relevant departments in advance, which belongs to the mandatory charging regulations. Property companies only charge you such fees, then transfer them to developers and then transfer them to relevant departments.