Aldev, your geographical location will play a big part in this, because in some area's of the country the wages are much lower than in other area's. For my area you would be so low as to P___ off other contractors for underselling your work. Here the rates are more like $60-120 / hr for licence holder hourly billing rates. Your helper probably costs you more than $20/hr with all overhead included even if you are paying him cash. (not ever recommended if you want to hold on to your assets). Here is my tip, just go for it and try a higher rate- say 70/ hour. All they can do is say no, and then negotiate . Good luck to you on your project