The answer to 'gutter installation sagging' is that the most common causes are improper installation, weak hangers or brackets, and heavy debris buildup. Symptoms include visible sagging, standing water, and leaks. The solution typically involves re-securing the gutters, replacing worn hardware, and thoroughly cleaning out the gutters.
In many cases, minor gutter sagging can be fixed with a DIY approach, but more significant issues may require a professional roofing contractor. It's important to address sagging gutters promptly to prevent water damage and other problems.