How to move home security system?

I have a home security system but the company installed it. Now, I don’t know how to get it out of the apartment. There is a box attached to the wall and sensors on the door and windows and also a wall panel.

What do they charge generally to get the system out?

Also, do you have any idea of what it costs to get it moved from one apartment to the other, adding 2 window sensors and a second door sensor?

Like do they charge by the sensor????

Thanks.
Thank you. It has a wire from the wall panel to the box and the sensors are wireless.

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