Bznitch,
You said that you worry "about not being a good entrepreneur and failing in the business." If you live in LA i dont care how many pressure washing contractors are out there, there's still going to be people needing the service done, w/ the average home value and incomes way above national average people are much more willing to dish out cash to have their homes kept up.... CCPC is right about the equipment if you have the right stuff it makes the job a lot easier, You aslo mentioned you dont have much experiance w/ pressure washing, yeah maybe you should rent one and just try it out on your home and a friends home, when i first started out i didnt mind pressure washing i just wanted to do my own thing instead of working under another contractor, but after a while i began to almost love the job, i mean outside, no one around to bother you, you're doing your own thing, making good money, it's a great startup job.... + this job you can start w/ a small investment compared to what you can make... i wouldnt go for the whole buy a trailor and a skidmount when you're not even used to using one in the first place, if you decid you like it and want to start out small, try getting a portable cold water unit around 3000 psi 4gpm... they run around 1500 for a good belt drive, after the hose, attachements and all you can start out w/ a 3k investment, use another grand or 2 in advertising if you decide you want to grow.. if you decide u want to go w/ the business after doing a few homes for your friends def.... buy insurance... you may never use it, but its a def. must in this biz.
-Jonathan