How to Clean Cedar Wood

Cedar wood brings a natural, aromatic beauty to outdoor decks, fences, and furniture. Regular cleaning helps maintain its color, prolongs life, and prevents graying or mildew. This guide provides a practical, step-by-step method using common cedar-specific products to achieve a clean, refreshed surface.

By following the steps below, American homeowners can safely remove dirt, mold, and oxidation while preserving cedar’s natural oils. The process emphasizes gentle cleaners and proper drying to avoid damage and warping.

Quick Answer

Start with a light cleaning using a cedar wood cleaner spray and a stiff bristle scrub brush for cedar wood. For deeper stains, employ a cedar wood brightener cleaner kit, then rinse thoroughly and allow to dry completely before applying a protective sealant.

What You’ll Need

cedar wood cleaner spray
stiff bristle scrub brush for cedar wood
cedar wood brightener cleaner kit

	Bona Hardwood Floor Cleaner Spray – 32 fl oz – Cedar Wood Scent – Refillable – Residue-Free Floor Cleaning Solution for Wood Floors
	KONEX Nylon Fiber Economy Utility Cleaning Hand Brush \| Heavy Duty Hand-Held Scrub Brush Stiff Bristles \| Wooden Body, Ideal Scrub Brushes for Cleaning (Peanut Shaped)
	Complete Wood Cleaner & Wood Brightener Kit for Wood Decks, Wood Fences, Wood Siding, and Log Cabins – EFC38 & Citralic Restoration Kit – Woodrich Brand – Covers up to 750 SQ FT – Easy to Use

Before You Start

Preparework area to protect plants, grass, and nearby surfaces. Wear eye protection and gloves, and test a small, inconspicuous area first to confirm color stability. Plan for time: cleaning and drying typically takes a half day for small projects and up to a full day for larger decks. Crucial cautions: never use high-pressure washing on aged or fragile cedar, as it can raise grain and cause splinters. Avoid bleach-based products unless specifically labeled safe for cedar wood.

Step-By-Step:How To Clean Cedar Wood

Clear the area and remove furniture, planters, and obstacles from the cedar surface.
Dry brush the surface with a stiff bristle scrub brush for cedar wood to lift loose dirt and protruding fibers without sanding the wood.
Mist the surface lightly with water to dampen; avoid soaking, which can push grime deeper into the pores.
Apply a cedar wood cleaner spray according to the product directions, focusing on stained or moldy spots.
Scrub in circular motions, maintaining even pressure to avoid gouges or uneven coloration.
Rinse thoroughly with clean water, using a garden hose on a gentle spray setting to remove all cleaner residues.
Assess the surface. For persistent stains, use a cedar wood brightener cleaner kit as directed to brighten and even out color, then rinse again.
Allow cedar to dry completely in a well-ventilated area, which may take 24–72 hours depending on weather.
If desired, apply a preventive sealant or conditioner designed for cedar wood to preserve color and reduce future staining.
Inspect after drying and re-clean any spots that remain; avoid applying sealants to damp surfaces.

Troubleshooting

Symptom	Likely Cause	Fix	Prevention
Stains persist after cleaning	Deep-set mold or tannins	Apply cedar wood brightener cleaner kit per instructions and re-clean	Clean promptly when moisture is high
Grayed or uneven color	Weathered cedar or sun exposure	Use brightener kit and consider a protective finish	Regular maintenance every 1–2 years
Excess moisture after rinse	Over-wetting the wood	Pause and allow longer drying time; re-check for complete evaporation	Avoid soaking; use light sprays
Scratches or raised grain after cleaning	Overly aggressive scrubbing	Use lighter pressure and switch to softer method on subsequent cleanings	Test in a small area first

Common Mistakes

Using harsh household cleaners or bleach on cedar wood, which can strip natural oils and cause discoloration.
Applying cleaners to very dry cedar without pre-wetting, which can cause uneven absorption.
Rushing the rinse; residual cleaner can lead to surface staining or film formation.
Cleaning in direct sun or during high humidity, which can warp cedar as it dries.

Awareness of these missteps helps protect cedar’s natural beauty and longevity.

Tips For Best Results

Test cleaners on a small inconspicuous area first to confirm color stability.
Use a brush with stiff bristles specifically designed for cedar wood to avoid gouging.
Work from top to bottom to prevent dirty runoff from re-soiling already cleaned areas.
Rinse thoroughly and allow complete drying before applying any sealant for best adhesion.
Schedule periodic cleanings to prevent the buildup of mildew or tannin staining.

Call A Professional

Consider hiring a professional if cedar surfaces are heavily stained, if there is extensive mold growth, or if the area is large and difficult to access. Seek help promptly if you notice soft or crumbly wood, warped boards, or persistent discoloration despite cleaning efforts.

FAQ

Can I use household cleaners to clean cedar wood?

Avoid household cleaners not formulated for wood; they can damage the surface and alter color. Use cedar-specific products for best results.

How often should cedar wood be cleaned?

Light annual cleaning is typical; deeper cleaning every 1–2 years is common for outdoor cedar surfaces, depending on exposure and climate.

Is it necessary to seal cedar after cleaning?

Sealing helps protect against moisture and UV damage, but ensure wood is completely dry before applying any sealant.

What should I do about mildew on cedar?

Use a cedar wood cleaner spray and, if needed, a cedar wood brightener cleaner kit to restore color and remove mildew, followed by thorough rinsing and drying.

Can I power wash cedar?

Power washing is generally not recommended on aged cedar, as high pressure can raise grain and cause damage. Use gentler cleaning methods instead.

Do I need to sand cedar before cleaning?

Sanding is usually unnecessary and can remove precious cedar oils; cleaning with appropriate products preserves wood integrity.

Buying Guide

When selecting products to clean cedar wood, consider size of the project, climate, and the cedar’s finish. Key buying factors include:

Cleaning power: A cedar wood cleaner spray should effectively remove dirt, mold, and surface grime without harsh chemicals.
Brightening capability: A cedar wood brightener cleaner kit can restore faded color and even tone after cleaning.
Application tools: A stiff bristle scrub brush for cedar wood helps lift embedded grime without scratching surfaces.
Drying time: Products that work efficiently and require shorter dwell times help speed up the project.
Compatibility: Ensure products are labeled safe for cedar wood and outdoor use, and compatible with subsequent sealants.
Environment and safety: Look for low-VOC formulas and clear safety instructions for outdoor applications.
Project scope: For large decks, consider multi-pack options or kit bundles designed for cedar cleaning and brightening.
Placement considerations: Outdoor surfaces may need washing under eaves or in shaded areas to prevent rapid drying that can leave spots.

By weighing these factors, homeowners can choose a balanced set of products that meet the project’s needs while keeping cedar wood looking its best.