How to Maintain a Cedar Fence in the Pacific Northwest
Western Washington gets 37+ inches of rain a year. Without basic upkeep, a cedar fence that should last 20+ years can start showing rot, cupping, and heavy moss in under a decade. The good news: keeping a cedar fence looking new in our climate only takes a few hours of work every couple of years. Here is the maintenance routine we recommend to every customer.
Year 1: Let It Dry Out
Newly installed cedar is still releasing moisture. Wait 4–8 weeks of dry weather (or one full PNW summer) before applying any stain or sealer. Trying to seal wet cedar traps moisture inside the board and causes the finish to peel within a year.
Year 1 or 2: First Stain Coat
We strongly recommend a penetrating oil stain like Ready Seal. It will not peel, crack, or require a primer, and it handles PNW moisture better than any film-forming product. Apply with a pump sprayer and back-brush.
Choose a 2–3 day window with no rain in the forecast
Sweep debris off boards and lightly scrub any visible mildew
Apply stain wet-on-wet using a pump sprayer, working top-down
Back-brush each section to push stain into the grain
Let cure 24 hours before sprinklers or rain hit it
Every 2–3 Years: Clean and Re-Stain
When the color starts to dull or water no longer beads on the surface, it is time. Wash with an oxygen-bleach solution (never chlorine — it damages cedar fibers), let dry 48 hours, and re-apply your stain.
Annual Walk-Around
Every spring, walk the fence line and look for:
Loose or popped fasteners — re-drive with stainless screws, not nails
Cracked or split boards — replace individually before they spread
Posts that wiggle — check the concrete footing and rake away soil contact
Vegetation pressing against the fence — trim back 6+ inches for airflow
Sprinkler heads spraying the fence — reposition to avoid daily soaking
Mistakes We See All the Time
Painting cedar instead of staining — paint peels in 2–3 years and turns into a strip-and-restart project
Power-washing on the narrow tip — gouges the wood and shortens board life by years
Sealing during the first winter — traps moisture and causes immediate finish failure
Letting blackberry vines or ivy grow on the fence — accelerates rot dramatically
Using chlorine bleach to clean — kills cedar's natural color and weakens fibers
Don't Want to DIY?
Ask about our pre-stain service — we apply Ready Seal in 8 colors before your fence is even installed. $8/ft and lasts 2–3 years.
Frequently Asked Questions
How often should I stain a cedar fence in the Pacific Northwest?
Every 2–3 years for a high-quality penetrating oil stain like Ready Seal, or every 1–2 years for a film-forming stain. Western Washington rain accelerates fading and gray-out compared to drier climates, so erring on the shorter end keeps the wood looking new.
Can I pressure-wash a cedar fence?
Yes, but carefully. Use a wide fan tip (25° or 40°), keep the pressure under 1500 PSI, and stay 12+ inches from the wood. Going too aggressive will fuzz the grain and shorten the life of the boards.
What is the best stain for a cedar fence in the PNW?
We almost exclusively use Ready Seal — a penetrating oil-based stain that does not peel, crack, or require a primer. It handles PNW moisture well and only needs reapplication every 2–3 years.
How do I remove moss and mildew from cedar?
Mix one part oxygen bleach (not chlorine) with four parts warm water, scrub with a stiff bristle brush, then rinse. Chlorine bleach damages the wood fibers and dulls the color. After cleaning, let the fence dry 48 hours before staining.