West Mercia officers have also stressed they are working with the victims and have appealed for victims.
At 8.30pm on Thursday fire crews dealt with a car fire at Merlin Coppice, in Apley, Telford.
Just before 10pm firefighters went to Thornton Park Avenue, Muxton, Telford, to reports of a house fire and discovered it has spread from a car blaze.
The police and fire service operations, as well as fire investigation officers, were at the scene for both incidents both within an hour.
Chief Inspector Helen Kinrade for West Mercia Police said: “I would like to reassure the victims and the community that we are thoroughly investigating each one and officers do not at this time, believe they are linked.
“We are providing and will continue to provide, support for anyone who is a victim of a crime and would ask anyone with information relating to these offences to please contact us on 101 or via our website.”
Both fires left the cars with major damage.
Photos from one of the incidents in Muxton showed how a Mercedes was gutted by flames while a nearby house was left scorched.
Nobody is thought have been injured in either blaze.