Internal demolition

Internal demolition is breaking of concrete floors or demolishing internal walls.

It can be done with mini excavator and hydraulic breaker

https://www.greenattachments.com/en/breakers-hammers/183-hydraulic-breaker-red-009-07515-t-80-kg.html

or small grapple

https://www.greenattachments.com/en/rotating-demolition-grapples/367-demolition-and-handling-grapple-yellow-g-03-48t.html