After roofers install a new roof, start by checking the overall appearance—shingles should be evenly aligned with no visible gaps or damage. Make sure all flashing around chimneys, vents, and skylights is properly sealed. Inspect the gutters and downspouts for leftover debris or nails. Check your attic for any signs of daylight coming through or water leaks after the next rain. Visit: https://managemyroof.com/blog/what-to-check-after-roofers-installed-new-roof/