What John said ,, plus,,
Look at the asset values , is there much equipment? how much of the price is made up of goodwill ?
It is fairly easy to get training , buy kit and get onto one of the half dozen or so networks who give work out without any up front costs or need to conform to rigid franchise rules about van livery , type of kit used etc. Of course they all add a % on to the end customer , but see how far you would get going direct to an insurer asking for work.