We have the contractors license in Tn but you only need it if your particular job is over a certain value. Which in the welding rig world kinda sucks cause like you said every little riglet and schmuck that's welded on the farm is out there cause they don't need anything and when I say anything I mean it. No certs, no insurance, no license required around here. Had a guy say he did a set of stairs in town near me, codes came out and checked, had him move some stuff around that was not up to code and away he went. It was a large job overall, requiring a contractors license but he was just a sub(built a small strip mall).
I quoted a gate yesterday, 12x6 gate, 2" sq x 3/16" wall frame with 1" square tube 4" apart in centers. Buy metal/build, no charge on grinding wheels, rod etc. Deliver to powder coater, pick up and go out to guys house and hang. Told him $1400. He really did'nt want the powder coat just some rattle cans but I told him I have a certain amount of pride and did not want a phone call next year saying the rattle can paint job was gone. He said he got a lower bid, I told him I could drop the powder coat and it would be down around $1100, still to much and apparently higher than the other guy who contacted him off craigslist. Go buy materials, build it one day, prep and paint the next day and let dry, load on trailer and go 70 miles to his place, spend half a day mounting on his preset post(if he did it right) and hope he has it burried deep enough so the gate don't sag. Don't think I could do it for less than $1100, around $475 in material with tax. Drop rates much lower and might as well go single hand somewhere. Am I wrong??