Best Cleaners for Pressure Washers: Top Picks for Powerful, Effortless Cleaning
Finding the right cleaner for your pressure washer can dramatically improve cleaning results, from removing tough oil stains to lifting algae and mildew. This guide highlights five highly effective cleansers and surface-cleaner attachments designed to work with residential and commercial machines. Each choice matches common cleaning needs—heavy grease, outdoor surfaces, siding, and large flat areas—while emphasizing safety, concentrate value, and ease of use. Use the buying guide at the end to compare features and align them with your projects.
| Product | |||
|---|---|---|---|
| Simpson Cleaning 88282 Cleaner | Soap Solution | Heavy-duty cleaning, multiple surfaces | Highly concentrated; up to 256 gallons per bottle |
| Simple Green Oxy Solve Total Outdoor | Outdoor pressure washer cleaner | Wood, vinyl, concrete, metal; mold and algae | Peroxide-based, powerful lift |
| Oxy Solve House And Siding Cleaner | Siding cleaner | Vinyl, aluminum, stucco, wood, brick | Peroxide-based; easy on surfaces |
| Westinghouse Surface Cleaner | Attachment | Large flat surfaces (decks, driveways) | 4400 PSI compatibility |
| MEKOH 20″ Surface Cleaner | Attachment | Large-area, fast cleaning | 8x faster with dual jets; high durability |
Note: All product links point to Amazon listings for quick reference. Features are summarized from the product pages to help you compare cleaning power, dilution options, and surface safety.
Simpson Cleaning 88282 Cleaner for Pressure Washers
Heavy-duty cleaner designed for industrial and commercial use, suitable for concrete, vinyl siding, appliances, windows, cars, fences, decks, and more. This non-butyl degreaser cuts through tough oil and grease, reducing the need for multiple products. It is highly versatile, usable in pressure washers, automatic scrubbers, and steam cleaners, or manually with spray, mop, or wipe. The formula is highly concentrated, allowing effective use at dilutions as great as half an ounce per gallon, delivering up to 256 gallons of solution from a single bottle.
Ideal for: fast removal of heavy grime on mixed surfaces. When using around sensitive finishes, test a small area first and follow dilution guidelines to minimize any risk of streaking or dulling. It is designed to be compatible with equipment and can be used in spray bottles or through pressure washer systems.
Simple Green Oxy Solve Total Outdoor Pressure Washer Cleaner – 1 Gal
This outdoor cleaner uses peroxide power to lift dirt, grime, and stains on wood, composite, vinyl, metal, fabric, plastic, wicker, concrete, stone, brick, and asphalt. The peroxide-based formula removes mold, mildew, moss, and algae while avoiding harsh chemical solvents. It is designed for broad outdoor surfaces and can help restore appearance without aggressive degreasers. Dilution options allow for efficient coverage across larger areas.
Best for: exterior siding, decks, and concrete with mildew or algae. Always follow surface compatibility notes and avoid prolonged contact on delicate finishes. Performance depends on dwell time and proper application.
Oxy Solve House And Siding Pressure Washer Cleaner
This cleaner targets exterior siding, removing stains and discoloration from algae, moss, and mildew on vinyl, aluminum, wood, brick, and stucco. It uses peroxide-based chemistry to lift grime without harsh chemicals, offering a surface-friendly option for homeowners cleaning exterior walls and light masonry. It can help restore curb appeal with regular maintenance and is suitable for spray or low-pressure application where appropriate.
Considerations include surface porosity and colorfastness. Always test on a hidden area and rinse thoroughly to avoid residue or color changes on sensitive finishes.
14″ Pressure Washer Surface Cleaner With Wheels – PWS14
This surface cleaner attaches to a pressure washer and covers a wide 14-inch cleaning path with dual spinning nozzles. The stainless-steel body and heavy-duty bearing deliver durability, while the weighted base minimizes tipping and reduces overspray with a splash-free skirt. Four universal wheels enable smooth movement across decks, driveways, patios, and sidewalks. It is designed for fast, uniform cleaning of large flat surfaces with consistent results.
Best for: large outdoor areas where even, streak-free cleaning is required. Ensure compatibility with your machine’s PSI and flow rate, and verify that the nozzle clearance matches your washer’s configuration to avoid improper fit.
MEKOH Pressure Washer Surface Cleaner 20″
The MEKOH 20″ surface cleaner is designed to deliver professional cleaning performance with two high-pressure water jets for non-marking cleaning. The larger 20-inch head covers more area, cutting cleaning time on driveways, sidewalks, and patios. It features interchangeable nozzles to switch between power washing and soft washing, and a robust construction with lightweight PP housing, brass components, and sealed bearings to handle high pressure and chemical exposure. The build aims for reliability and longer service life.
Usage tip: when using larger surface cleaners, maintain a steady motion parallel to the surface and avoid bursts of high pressure against edges to prevent streaking. Check compatibility with your pressure washer’s PSI rating and standard 1/4-inch quick-connect fittings.
Buying Guide
Key purchase considerations for pressure washer cleaners and attachments:
- Surface compatibility: Assess whether the cleaner is suitable for concrete, siding, wood, vinyl, brick, or metal. Peroxide-based formulas are effective but may require surface testing to prevent discoloration on sensitive materials.
- Concentration and dilution: Highly concentrated products extend coverage, but ensure you follow dilution guidelines to avoid residue and to maintain cleaning efficiency. Some products offer up to hundreds of gallons per bottle when diluted.
- Application method: Choose cleaners that work with your equipment (pressure washer, spray bottle, or mops). Surface cleaner attachments should match your machine’s PSI and flow rate for optimal performance.
- Durability and construction: For surface cleaners, stainless steel or robust plastics with sealed bearings reduce wear. Weight and base stability affect maneuverability and overspray control.
- Environmental and safety considerations: Peroxide-based cleaners are effective but should be used with proper ventilation and protective gear. Verify that cleaners are safe for the surfaces you clean and avoid letting harsh chemicals dwell on sensitive substrates.
- Maintenance requirements: Regularly inspect seals, bearings, and nozzles. Clean nozzles after use to prevent clogging and ensure consistent spray patterns.
- Compatibility with attachments: Confirm quick-connect fittings and hose compatibility. A universal 1/4″ quick-connect is common, but verify with your unit.
- Cost-per-use: Consider the price per gallon when diluted to achieve your expected coverage. Higher upfront cost with concentrated formulas can justify savings over time.
In sum, the best choice depends on your typical projects—hard-grime removal on driveways and decks, exterior siding maintenance, or efficient surface cleaning on large areas. Combining a quality cleaner with a compatible surface cleaner attachment can deliver faster, more consistent results while protecting surfaces and extending equipment life.