Gutters are one of those things that you don't really think about until they're not working properly. Then, all of a sudden, they're all you can think about! Clogged gutters can cause all sorts of problems and that's why it's so important to hire a good gutter cleaning service.
How often you need to clean your gutters will depend on many factors. If you don't like tannin (Which is the harmless yet awful yellow tinge to the water) then you would need to have your gutters cleaned out more regularly to avoid leaves which will result in the tannin. This could be as often as every 2 months to twice a year. It really depends on how many over hanging trees and exposed your roof top is to the elements.
As a general rule of thumb, we recommend all our clients in Mangawhai to not wait any longer than 6 months before scheduling our gutter cleaning service.