Just a thought and not a particularly educated one but: you guys who run more than one van - can you tell me how much in percentage terms your income has improved per van?
For example as a sole trader you might be on £50,000 pa. (just a figure) then you get too much work so employ and provide a second van so now you have double the running costs and a wage to pay plus holidays etc.
So now your turnover should be £100,000 minus all the above costs. What realistically would you expect to pocket yourself from that - £50%? less? More?
I'm no where near this position and it's not for me, but i'm interested to know if it's worth it.