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Whether or not you can use a pressure washer to clean your gutter guards depends on the type of gutter guard you have and the strength of the pressure washer. Most gutter guards can handle a low-pressure setting but check first. If you’re unsure if your gutter guard is designed for pressure washing, check your manufacturer’s instructions, ask a pro, or use a garden hose to clean the gutter guard instead. As gutter guards age, they become less resistant to the strong forces of a power washer, so treat older gutter guards with more care.

The kind of gutter guards you have will affect how often you need to clean them. The more basic type of gutter screen requires cleaning once or twice a year. With a micromesh screen, you may be able to extend the time between cleanings to every two years or so.

However, if you have trees near your roof, you’ll need to clean your gutters more frequently, especially if you have chicken-wire or colander-type gutter guards. If you have pine trees near your roof, you may even need to clean your gutters quarterly, as tiny pine needles can get through any type of gutter guard.

Gutters should be cleaned at least twice a year, in the spring and in the fall, to remove the debris from trees that can clog the eavestroughs and downspouts. Debris like leaves, twigs, and seed pods can build up and cause your gutters to overflow, potentially causing damage to your roof and foundation. Water backing up under the shingles can rot the edge of your roofline. Overflow water falling next to your foundation can end up leaking into your basement or crawl space.

If you don't want to install gutter guards, the most common and inexpensive alternative is regular gutter cleaning, either annually, biannually, or as soon as they start to fill up. Using a leaf blower attachment can make this process easier. Other products designed to reduce cleanings include gutter screens (made of wire mesh, nylon, or foam), which are typically less expensive than a full gutter guard installation. You can also find guards and inserts designed specifically to protect your downspouts or opt for a whole gutter system like LeafGuard, which integrates the gutter and guard into a single product.