Where can I complain if the water is stopped on the first floor without authorization?

Legal analysis: If the property management company threatens the owner by means of water and electricity cuts, the owner can report the situation to the relevant water supply company or power supply company, or complain to the real estate administrative department at or above the county level. For property losses directly caused by water and power cuts, they also have the right to bring a lawsuit to the people's court according to law.

Legal basis: Article 44 of the Regulations on Property Management. Within the property management area, water supply, power supply, gas supply, heating, communication, cable TV and other units shall charge relevant fees to the end users. The realty service enterprise shall not charge additional fees such as handling fees to the owners if it accepts the entrusted collection of money. It can be seen that the property management company only accepts the commission to collect fees such as utilities. When the owner fails to pay the utilities, the property management company can stop supplying water and electricity to the owner according to the authorization of the water supply and power supply unit. However, it is only limited to the case that the owner does not pay the water and electricity fee, regardless of whether the property fee is paid or not.