From the first communication on Thumbtack to in person free estimate, and throughout the work done in our home ( roof replacement, mold remediation, and drywall repair), Oscar was polite, professional, responsive and pleasant; and so were his co-workers. They did a great job with all three levels of work we needed, and when I questioned something, Oscar took the time to explain. He also worked with us to meet the workmanship guarantee of a larger company at his better price!