RE:PI Insurance for non-chartered engineer
this is a good question. I'm no expert, but Ltd Co status may have the advantage of providing an extra line of protection if for some reason the insurance company decided not to pay out. Also, as far as I know (please correct me here if I am wrong) the PII only covers you whilst you are paying the premiums, so if in a few years time you decide not to keep doing private work, you will still need to keep paying the premiums until the time when you think any more claims are unlikely. The Ltd company status might be useful at this point.