Do you ever ask for more money after the job is completed? Every now and then I underbid a job. Sometimes it's just on materials, other on just labor. Sometimes both. Most of the time I just eat it if it's not much. Last year I did a job and needed $500 more worth of material and labor. I told the customer I needed more mulch then what I bid. They said no problem , we understand, just add on what is neccesary including the labor. I would of lost big time if they said no. So I did it again today. Underbid it for 3 more hrs of work. $50 an hour ,so $150. Would you say something like: Wow that took longer then I was expecting. There was more work then I thought. See if they bite. Or is this just too unprofessional?