Pressure Washer Deck and Fence Detergent – 1 Gallon (4 Pack)

Restore the Natural Beauty of Wood with a Safe, High-Yield Cleaner

Give your outdoor wood surfaces the deep clean they deserve with BE’s Pressure Washer Deck and Fence Detergent — a 1-gallon, super-concentrated solution formulated specifically for pressure washer soap injection systems. Designed to clean and brighten wood surfaces without harsh scrubbing or damage, this detergent removes built-up grime, mold, mildew, pollen, tree sap, surface dirt, and organic stains quickly and effectively. It also helps remove oxidation that causes wood to gray and dull over time.

Whether you’re prepping a deck for staining, painting, refreshing a faded fence, or doing regular seasonal maintenance, this wood-safe detergent makes the project faster, safer, and more economical. It is ideal for deck restoration projects, helping ensure the wood is thoroughly cleaned before sealing, staining, or painting. Making a purchase of this detergent is a smart step for any outdoor cleaning project. When diluted properly, one gallon creates up to 20 gallons of working solution — enough to tackle even large outdoor spaces with ease.

Key Features

• Effective Outdoor Cleaning
  Quickly breaks down dirt, mildew, bird droppings, leaf stains, and general weathering that dulls the appearance of decks, fences, pergolas, railings, and rails. The powerful cleaning power of this detergent tackles tough stains and reduces the need for excessive elbow grease during cleaning.

• Safe on Wood and Composite
  Gentle formulation designed for natural wood, pressure-treated lumber, cedar, redwood, and composite materials. Packaged in a durable bottle for easy storage and application. Will not harm grain or raise wood fibers when used as directed.

• Super Concentrated Formula
  A powerful concentrate that must be mixed with water before use. Each gallon of detergent can be diluted at a 1:20 ratio, creating up to 20 gallons of working solution — providing excellent value for large surface areas. The concentrate allows you to mix the right amount for your cleaning needs.

• Pressure Washer Compatible
  Formulated for seamless use with pressure washer soap tanks and downstream injection systems, offering consistent application and coverage with minimal effort. Ideal for a thorough deck wash.

• Pump-Safe When Diluted
  Designed to be safe for pressure washer pumps, seals, and components when properly diluted before use. Regular use helps in maintaining the appearance and integrity of your deck and fence.

• Highly Rated by Customers
  Positive customer reviews highlight satisfaction with the product’s performance, ease of use, and cleaning results across a variety of outdoor surfaces.

Built for Wood Restoration

Outdoor wood surfaces are constantly exposed to moisture, UV rays, pollen, organic debris, and algae. Over time, this leads to discoloration, staining, mildew, and algae growth that dulls their appearance. The BE Pressure Washer Deck and Fence Detergent is engineered to target these contaminants and lift them from the surface, revealing the natural tone of the wood underneath. Mold and mildew are effectively removed by the detergent, which helps rid your deck of years of buildup. Keep in mind that cleaning needs may vary depending on the age of the wood, as older decks may require different preparation or treatment.

Unlike harsh household cleaners, this detergent is formulated to be gentle on wood while delivering a powerful cleaning action that doesn’t compromise the structural integrity or surface texture of your deck or fence. For stubborn stains, a light scrub or having the surface scrubbed can enhance results. Letting the detergent sit on the surface for several minutes enhances its cleaning effectiveness. After allowing it to sit, the surface should be thoroughly rinsed to ensure all contaminants are removed.

Where It Works Best

• Pressure-treated wooden decks

• Natural wood fencing

• Composite decking and railing

• Wood benches, railings, and trellises

• Wooden siding and outdoor furniture

• Pergolas, gazebos, and other wooden structures

• House siding and exteriors

• Functions as an effective fence cleaner for wood, composite, and PVC fences

For best results, use with a power washer to maximize cleaning efficiency.

Pressure Washer Safety and Precautions

When using a pressure washer to clean your wood deck or other outdoor surfaces, safety should always come first. Start by wearing protective gear—gloves, safety glasses, and a mask—to shield yourself from flying debris and cleaning solutions. Make sure your pressure washer is set up on a stable, level surface to prevent accidental tipping, and keep children and pets well away from the cleaning area.

Before you begin, check all hoses, nozzles, and connections for signs of wear or damage to ensure your equipment performs safely and efficiently. Always be mindful of electrical cords and water sources to avoid the risk of electric shock. Begin cleaning with the lowest pressure setting and gradually increase only if necessary, as too much pressure can damage wood decks and other delicate surfaces. By following these precautions, you’ll protect both yourself and your deck while achieving a thorough, effective clean.

Environmental Considerations

Caring for your deck and the environment can go hand in hand. Many traditional deck cleaners contain harsh chemicals that can harm plants, pollute water sources, and negatively impact local ecosystems. To minimize your environmental footprint, choose eco-friendly deck cleaners that are biodegradable and free from toxic ingredients. Oxygenated deck cleaners are a great option for both wood decks and composite decks, offering powerful cleaning without the environmental drawbacks.

When using a pressure washer, adjust the pressure and water flow to use only what’s necessary for the job, helping to conserve water. Always follow the manufacturer’s instructions for your deck cleaner and pressure washer to achieve the best results while reducing runoff and overspray. By making thoughtful choices, you can keep your deck, fences, and outdoor surfaces looking their best while protecting the world around you.

Application Tips

To achieve the best results and preserve the condition of your wood, follow these usage recommendations:

• Nozzle Selection
  Use the white (40°) or green (25°) spray nozzles for applying detergent and rinsing wood surfaces. These wider angles reduce pressure intensity to avoid damaging the surface. Avoid using red (0°) or yellow (15°) nozzles, which may cause gouging or etching.

• Maintain Proper Distance
  Hold the spray wand at least 18 to 24 inches from the surface and use long, even strokes to apply detergent. Let it dwell for several minutes, but do not allow it to dry on the surface—a common mistake that can lead to residue and uneven cleaning.

• Rinse Thoroughly
  After dwell time, rinse from top to bottom using clean water. Always rinse before the detergent dries to prevent residue and ensure a consistent finish.

• Avoid Direct Sunlight
  For best results, clean during cooler parts of the day or when the surface is shaded. Sunlight can accelerate drying and reduce dwell time.

• Seek Professional Advice
  If you are unsure about the proper cleaning technique or settings for your deck, seek advice from a professional or consult the manufacturer’s recommendations. This expert advice can help you avoid mistakes and ensure the longevity of your wood surface.

Application Instructions

For General Cleaning:

1. Prepare your deck wash by diluting 1 part detergent with up to 20 parts water in your pressure washer’s detergent reservoir or external soap tank. Always follow the manufacturer's guidelines for proper dilution and application.

2. Apply the deck wash evenly using a low-pressure spray setting.

3. Allow the solution to dwell for 5–10 minutes to penetrate and lift surface stains, including mold and mildew.

4. Rinse thoroughly using a white or green nozzle at low to moderate pressure.

Tip: June is an ideal month for a thorough deck wash as part of your seasonal maintenance routine. Before starting, consider reading a review of the product or checking customer reviews to ensure the best results.

For Spot Treatment:

• Apply detergent full-strength to heavily stained areas using a handheld sprayer. Let dwell briefly, then gently agitate with a soft brush if needed. Rinse thoroughly.

Common Mistakes to Avoid

Achieving a spotless, well-maintained wood deck is easy when you steer clear of common cleaning mistakes. One of the biggest errors is using too much pressure with your pressure washer, which can gouge or splinter wood surfaces and strip away protective finishes. Avoid using bleach or other harsh chemicals, as these can damage wood fibers and harm surrounding plants and surfaces.

Never use a pressure washer with a wide fan tip directly on the wood, as it can dislodge debris and cause uneven cleaning. Always test your cleaning solution on a small, hidden area of the deck to ensure compatibility and the best results. Try to avoid cleaning your deck in direct sunlight, since the solution can dry too quickly and lose effectiveness. Regularly inspect your deck for mold, mildew, and stains, and address these issues promptly to prevent long-term damage and staining.

Deck Cleaning Frequency

How often you clean your deck depends on its material, location, and how much use it gets. For most wood decks and composite decks, a thorough cleaning with a pressure washer and quality deck cleaner at least twice a year—typically in spring and fall—will remove dirt, grime, and stains that accumulate over time. If your deck is in a shaded area, near trees, or exposed to high humidity, you may need to clean more frequently to prevent mold and mildew growth.

Using a deck cleaner with a mildewcide can help keep mildew and stains at bay between deep cleans. Regular maintenance not only keeps your deck looking fresh but also extends its lifespan and protects your investment. Always follow the manufacturer’s instructions for your pressure washer and cleaning solution to ensure the best results and avoid damaging your deck or surrounding surfaces.

Why Choose BE Pressure Washer Deck and Fence Detergent?

• Purpose-Built for Outdoor Wood
  Unlike generic cleaners, this formula is tuned specifically for wood and composite surfaces — tough on stains, safe for structure.

• Excellent Coverage & Value
  One gallon goes a long way. With up to 20 gallons of working solution per jug, you can clean large decks or hundreds of feet of fencing with a single container.

• Quick and Efficient
  Designed to work through a pressure washer system for uniform coverage and fast application, saving time and labor.

• Surface-Friendly Performance
  Helps restore natural color and appearance without bleaching, brightening, or lifting grain unnecessarily.

• Professional Results at Home
  Whether you’re preparing for resealing or just refreshing your outdoor space, this detergent delivers reliable results with a simple spray-and-rinse routine. Customers are rarely disappointed with the cleaning results, even on tough stains.

For more information, expert tips, and customer support, visit the manufacturer's site.

Product Specifications

• Product Type: Deck and Fence Cleaning Detergent

• Volume: 1 Gallon (3.8 Liters)

• Dilution Ratio: Up to 1:20

• Application Method: Pressure washer soap injector or pump sprayer

• Surface Compatibility: Natural wood, pressure-treated lumber, composite materials

• Coverage: Up to 20 gallons of usable cleaning solution per jug

• Pump Safe: Yes, when diluted

• Storage: Store in a cool, dry location. Do not freeze. Keep sealed when not in use.

Clean and Brighten Your Outdoor Living Space

With BE’s Pressure Washer Deck and Fence Detergent, restoring the clean, natural look of your wood surfaces is simple and safe. Skip the harsh chemicals and scrubbing — this super-concentrated, wood-safe cleaner is purpose-built to cut through the dirt, stains, and organic buildup that accumulate year after year.

Just dilute, spray, dwell, and rinse — and let your wood show its true color again. Ideal for spring cleanup, deck refinishing prep, or regular seasonal maintenance, this detergent is a must-have for any homeowner or contractor working with exterior wood.