I had a licensed GC install 2 windows. One of them needed a new RO in the stucco wall (single story home southern CA). I agreed to close the wall and do finish work. He was contacted to install windows and frame wall for windows. Now that I'm taking a closer look I have doubts and I'm looking for standards or code references to evaluate his work. 1. New king studs only have 1 nail toe nailed on the thin edge into the top plate. One of them has split where he nailed. 2. Jack studs are not fastened to King studs at all and aren't fastened to header and neither to bottom plate. 3. Cripple studs (cut from original studs) have 1/2 inch gap between the header and sill plate. Nails are visible...this cannot transfer load properly I would assume. 4. Header nailed to cripple studs with one nail. One of them split out the header pretty bad. 5. Sill plate not nailed to jack stud on one side. Other spots have 1/2 inch gaps and only use 1 nail.
My concern is that he left too large gaps and loads aren't transferred properly. The window is fastened to the jack stud, but jack stud is not secured by anything but a couple nails from the shop plate.
Also, the contact was time and material. He charged 1hr before and 1hr after he was at site. He took excess materials with him (cutoffs, nails, unused lumber) and charged me the total material cost plus 35%. Is that normal?
Can someone tell me what's normal, and what I should do? I've yet to pay him. I feel that I should have the option to keep all materials I purchase or have it deducted. I'm doing other work on the house where I could use them. I also don't think I need to pay an extra hour after the job for his commute (I live in very centralized location). What is correct here and what should I ask for? Is he obligated to correct any build problems (we did not get a permit)?