Protect and refresh your home’s exterior with top-rated soft wash cleaners designed to lift algae, mildew, and discoloration from vinyl, wood, brick, and more. This guide reviews five reliable options, highlighting their strengths, application notes, and ideal use cases for American homes. Whether you’re tackling a routine refresh or a deep clean before painting, these products offer safe formulas that work with pressure washers and soft wash systems.
| Product | |||
|---|---|---|---|
| Oxy Solve House And Siding Cleaner | Simple Green | Vinyl, aluminum, stucco, wood, brick siding | Peroxide-based lift without harsh chemicals |
| Southeast Softwash Southern Drawl | Generic | Exterior siding, gutters, roof | Citrus scent; effective soft wash solution |
| Southeast Softwash Southern Slang | Southeast Softwash | Exterior house, siding, roof | Professional-grade, cherry scent |
| Kärcher House & Siding Cleaner | Kärcher | Houses, buildings, siding | Highly concentrated; up to 40 gal ready-to-use |
| Zep House And Siding Cleaner Concentrate | Zep | Vinyl, wood, aluminum siding | Concentrated, up to 20 gal cleaner |
Oxy Solve House And Siding Cleaner — Simple Green

Simple Green’s Oxy Solve is a peroxide-based cleaner designed to lift grime from multiple siding materials including vinyl, aluminum, stucco, wood, and brick. The formula focuses on removing stains caused by algae, moss, and mildew without resorting to harsh chemicals. It’s suitable for use with pressure washers and soft-wash systems, offering a versatile option for residential exterior cleaning.
Southern Drawl — Citrus Scent Soft Wash

This Gentle Soft Wash solution is designed for exterior cleaning with a focus on masking with a clean citrus scent. It’s intended for use with pressure washers and soft wash systems to cleanse siding, gutters, and roofs. The formulation includes wetting agents to extend cling time for effective organic matter removal, and it’s compatible with common downstream injection setups.
Southern Slang — Cherry Scent Soft Wash

Southern Slang provides a professional-grade soft wash surfactant with a cherry scent. It’s designed to rinse clean from windows, vinyl siding, gutters, and roofs, delivering pro-level results without aggressive scrubbing. It pairs with pressure washers or soft wash systems for comprehensive exterior cleaning and is suitable for multiple siding materials.
Kärcher House & Siding Cleaner

Kärcher’s House & Siding Cleaner is a highly concentrated detergent designed for pressure washers. It can clean houses, buildings, and various siding materials, with up to 40 gallons of ready-to-use cleaner when fully prepared. The product emphasizes quick rinsing to minimize residue and time on the job.
Zep House And Siding Concentrate

Zep’s 1-gallon concentrate is a construction-grade cleaner formulated to remove stubborn stains and revive vinyl, aluminum, and wood siding. The concentrate makes up to 20 gallons of professional cleaner, making it a cost-effective option for larger exterior cleaning projects.
Zep House And Siding Cleaner Concentrate (Case of 2)

This case pack extends Zep’s cleaning power for larger properties or ongoing maintenance. The formula is designed to revive siding on a range of materials, supports use with pressure washers, and helps achieve a uniform, refreshed appearance on exterior surfaces.
Simpson Cleaning 88282 Concentrated Soap

Simpson’s heavy-duty cleaner is designed for industrial and large-scale cleaning tasks, including concrete, vinyl siding, and outdoor surfaces. It’s highly concentrated, suitable for use with pressure washers and spray bottles, and can be diluted to meet specific cleaning needs. It offers versatility beyond siding care, fitting fleet, equipment, and facility cleaning contexts.
Buying Guide: Key Purchase Considerations
When selecting a soft wash cleaner for siding, consider material compatibility, dilution needs, and method of application. For delicate or composite siding, choose milder formulations and test on a small area first. Highly concentrated concentrates offer cost savings for large jobs but require accurate dilution practices. Surfactants and wetting agents improve cling time and coverage, especially for vertical surfaces. If you have a sensitive environment or nearby landscaping, look for biodegradable formulas with minimal harsh chemicals. Finally, verify compatibility with your pressure washer or soft wash system and follow manufacturer guidelines for mixing ratios and contact times.
Versatility is another factor. Some cleaners are suited for multiple materials (vinyl, wood, brick) and can be used with or without chlorine compounds, depending on the stain type. For routine maintenance, a citrus- or cherry-scented formula may provide a more pleasant experience during application. For stubborn stains, consider a more robust, professional-grade option. Always wear appropriate protective gear and ensure proper ventilation when working around outdoor spaces and windows.