Don’t tell that to the owner who has had the misfortune of dealing with an inexperienced contractor: a general contractor is often not qualified to demolish buildings or structures. Not unlike doctors, demolition contractors acquire their specialty only after making a substantial investment in their training equipment. Investigate all of the contractors before accepting the lowest price. Compare what each is going to do and how the job is to be done. If anyone was to have surgery, they would choose someone with the proper experience and reputation in addition to the lowest cost. No one would simply engage the lowest priced doctor they could find.