Have you ever had to call out a trades person recently? Most of them are so unreliable its untrue, when you find someone that turns up when he say's he is going to, does the job as he say's he is going to, and charges what he say's he is going to charge, you tend to hang on to him. Personally, although I recognise there is a market for budget I try to steer clear it often costs more than I make out of it, and I end up fighting for every call-out, so much so I do not renew contracts on the customers that dont value the service I provide.
We have mostly large domestics and commercial customers most who need an approved co in order to get insurance. We do have many smaller customers too nearly all of them recognise the value of an accredited company. It costs more to run an accredited company, but the benefits for the customer outweighs the cost, many people would rather pay a little more and have the service they would expect.
Of course I am not saying that every one man band is unreliable, no more than I am saying that every NSI Gold company is reliable and honest, what I am saying is being accredited affords me to run my business to provide value for my staff and customers