Is $10,000 to paint the exterior of my house a fair price?

I hired CertaPro to paint the exterior of my house, but they subcontracted the work without my knowledge. The crew cut corners, failing to properly wash, scrape, or prime areas before painting, leading to painted-over spider webs and plant material. They also did not prime new raw cedar siding. I observed them scraping paint directly onto the ground without tarps, which was concerning given the house was built in 1927 and required LeadSafe procedures. I took pictures of all issues. After I raised concerns, they returned to fix some problems, including scraping peeling paint and spot priming. I signed off after they supposedly fixed everything. However, I am upset because they did not follow the LeadSafe guidelines stated in the contract, potentially contaminating my yard and child's play area with lead paint chips and dust. They also used a different type of Sherwin-Williams caulk than specified. I asked for the LeadSafe charge to be removed from the $10,000 invoice (I've paid a $5,000 deposit), but they refused, claiming they fixed the problem and provided additional work without charge. I am seeking opinions on whether it was wrong to ask for the LeadSafe charge removal, what future issues might arise from improper washing, and if it's worth taking them to small claims court to get my deposit back and honor their warranty.