Estimated time for project was one week. Actual time was 8 working days. Company used young inexperienced labor, resulting in damage to my home from falling shingles (old) during tear-off, torn window screens (6) and debris left on the ground. After my complaint on day 1, he nailed large blue tarps up (left the nails in). The work seems to have been done correctly (only time will tell?). However, expect to perform your own final clean-up and picking up of many (30+) nails.