The answer to 'gutter cleaning sagging' is that sagging gutters are often caused by debris buildup, loose hangers, or structural issues. Symptoms include water spilling over the sides, gutters pulling away from the roof, or visible sagging. Solutions may include gutter cleaning, re-securing hangers, or replacing the gutters if they are damaged beyond repair.
It's generally best to call a professional roofing contractor to inspect and repair sagging gutters. Attempting DIY gutter repairs can be dangerous, especially if you need to work at heights. A professional roofer has the right tools, experience, and safety equipment to get the job done properly.