private investigator

Why are there so many differences between quotations given by different investigation firm? All is about Quality VS Quantity

The common element of the business definitions is that the quality of a service refers to the perception of the degree to which the service meets the customer's expectations. Investigation fees are usually based on the complexity of the case, time and effort of the private investigator/s put in and the requirement degree of evidence the client require.

A reputable private investigation firm might not be necessary charging a higher price compared to a smaller private investigation firm.