Reciprocating saws (sometimes known as sabre saws) are most suitable for quick and efficient cutting. They are hand-held saws that take care of the more heavy duty demolition work. They are to cut and rip out the materials around windows, doors and cutting through joists, plasterboard etc.
Interchangeable blades for sabre saws work on many types of materials. Their efficient push and pull action makes quick work of cutting. It is important to look for variable speeds for control on different materials. They are available in cordless and brushless configurations to streamline your workspace.