You need to charge your customers the correct rates, over they last 5 years years I have been charging high, but my service and quality is even higher.
Without getting into agurment with others who say it can't be done in my area, most of my domestic customers either live on council estates or are normal workers like us.
I do not target the high end market, because I have found out over the last 30 years that they are normally living beyond their means.
With commercial work the same applies, I do not target big companies, rather I would perfer small businesses who understand about quality and service and the price that comes with it.
You also have to think about the major problems that businesses have when they start to employ people, and the 2 biggest is working conditions and pay, I also believe that you should not pay someone what you are not willing to work for yourself.