Quick answer
Match the guard to what falls on your roof: stainless micro-mesh for Douglas fir, pine and cedar needles; perforated aluminum or micro-mesh for maple seeds and oak leaves; and sturdy screens are enough for large leaves only. Avoid foam inserts and plastic screens under Northwest conifers.
Guard by tree
| Main debris | Best guard | Avoid |
|---|---|---|
| Douglas fir, pine, cedar needles | Stainless micro-mesh | Plastic screens, foam |
| Bigleaf maple leaves and seeds | Micro-mesh or fine perforated aluminum | Coarse screens |
| Oak leaves | Perforated aluminum or micro-mesh | Foam inserts |
| Cottonwood fluff, pollen | Micro-mesh (needs brushing) | Expect to clean the surface |
| Roof moss | Any metal guard plus roof treatment | Relying on guards alone |
Installation details that matter
- Clean, flush and fix the gutter first
- Confirm the gutter slope before covering it
- Choose front-lip or fascia mounting if you do not want shingles lifted
- Leave downspout outlets accessible for flushing
Cost
Installed guards typically run $9–$26 per linear foot depending on the product and roof access.
Frequently asked questions
Which gutter guards are maintenance free?
None. Even the best micro-mesh needs its surface brushed or blown off every one to two years under trees.
Do gutter guards work with steep roofs?
Most do, but on very steep pitches some surface-tension designs let water overshoot in heavy rain. Micro-mesh angled to the roof works well.
Need a hand?
- Gutter Guards: Micro-mesh and screen guards chosen for fir needles, maple leaves and moss, not a one-size pitch.
- Gutter Cleaning: Hand-cleaned gutters, flushed downspouts, roof edge cleared and everything bagged and hauled away.
- Roof Moss Removal: Gentle moss removal and zinc-based treatment that protects shingles and keeps gutters from refilling.