The answer to 'how often to replace gutter guards' is that gutter guards typically need to be replaced every 5-10 years, depending on the material and local weather conditions. Gutter guards made of plastic or vinyl may need replacing more often, around 5-7 years, while metal or mesh guards can last 8-10 years. Regular inspection and cleaning can help extend the life of gutter guards, but eventually they will become worn down and need to be replaced to maintain proper drainage and prevent clogs.
It's a good idea to have a professional roofing or gutter contractor inspect your gutter guards every 2-3 years to check for any damage or deterioration. They can advise if it's time to replace the guards or if they just need a thorough cleaning. Replacing gutter guards is a relatively inexpensive home maintenance task that can save you from dealing with clogged gutters and potential water damage down the line.