What To Check After Roofers Installed New Roof? After roofers install a new roof, it’s important to inspect the work to ensure quality and durability. Start by checking for any missing, misaligned, or damaged shingles. Look for proper sealing around vents, chimneys, and skylights to prevent leaks. Make sure the flashing is securely in place, as it helps protect against water damage. Inspect the gutters to ensure they are clear and properly attached. Check the attic for any signs of light coming through or moisture buildup. Verify that the roof has proper ventilation to prevent future issues like mold or heat damage. Lastly, review the warranty and ensure all work meets agreed-upon standards.