What Simply SoftWash Does and How It Works

Simply SoftWash is a low-pressure cleaning method, not traditional pressure washing

Simply SoftWash uses water mixed with biodegradable cleaning solutions applied at low pressure—typically under 500 PSI—rather than the high-pressure jets that standard pressure washers deliver. The method relies on the cleaning agents to break down dirt, algae, mold, and stains while the low pressure rinses them away without damaging surfaces. This approach works well on delicate materials like wood siding, vinyl, stucco, and roof shingles, where high-pressure washing can strip paint, splinter wood, or dislodge granules.

The name "Simply SoftWash" refers to the technique itself rather than a single company or brand. Many pressure washing contractors in South Carolina offer softwash services alongside traditional pressure washing, and some specialize in it. You'll find softwash used for house exteriors, deck cleaning, roof treatment, and fence restoration—jobs where surface protection matters as much as cleanliness.

Key Takeaways

• Softwash uses low pressure (under 500 PSI) combined with cleaning solutions, while pressure washing uses high pressure alone, making softwash safer for wood, vinyl, and painted surfaces.
• The cleaning solution does most of the work in softwash, so results take longer to appear than with pressure washing but last longer because the solution kills algae and mold at the root.
• Softwash costs more per job than pressure washing because it requires specialized equipment, trained operators, and time for the solution to work before rinsing.
• South Carolina's humidity and coastal climate create ideal conditions for mold and algae growth, making softwash a popular choice for homeowners protecting their investments.

How softwash cleaning actually works

A softwash operator mixes water with a cleaning solution—typically a combination of sodium hypochlorite (bleach), surfactants, and sometimes algaecide or fungicide depending on the job. This mixture is applied to the surface using a low-pressure pump system, usually through a wand or hose. The solution clings to the surface and begins breaking down organic growth like algae, mold, and mildew at the cellular level.

The operator then allows the solution to dwell on the surface for a set time—anywhere from 15 minutes to several hours depending on the contamination level and the product used. During this dwell time, the cleaning agents are doing the heavy lifting. After the solution has had time to work, a low-pressure rinse removes the dead algae, mold, and dirt. Because pressure is low throughout, the surface itself remains intact.

This is fundamentally different from pressure washing, where high pressure alone forces dirt away. Softwash is gentler but requires more planning and patience, which is why it costs more and takes longer to complete.

When to choose softwash over pressure washing

Softwash is the right choice when the surface is delicate or when you want results that last. Wood siding, cedar shakes, vinyl cladding, and painted surfaces all benefit from softwash because high pressure can cause real damage—splintering wood, cracking vinyl, or stripping paint. Roof cleaning is almost always done with softwash because pressure washing can damage shingles and void warranties.

Softwash also makes sense when algae and mold are the main problem rather than surface dirt. Because the solution kills the organisms at the root, softwash results typically last six months to a year or longer. Pressure washing removes what you can see but doesn't address the cause, so mold and algae often return within weeks in South Carolina's humid climate.

Decks, fences, and stained concrete are common softwash jobs. If you've invested in staining or sealing a surface, softwash protects that investment while cleaning it. Pressure washing can strip stain and sealant, requiring expensive reapplication.

Cost and timeline differences

Softwash jobs typically cost 20 to 50 percent more than pressure washing the same square footage, depending on the surface type and contamination level. The higher cost reflects the specialized equipment needed, the time required for the solution to work, and the skill required to apply it safely. A contractor can pressure wash a driveway in an hour; a softwash job on the same driveway might take three to four hours when you include application, dwell time, and rinsing.

Timeline matters if you're planning around weather. Softwash solutions need dry conditions to adhere properly and time to work before rain washes them away. Most contractors recommend scheduling softwash on a day with no rain forecast for at least 24 hours after application. Pressure washing can often be done in variable weather because the high pressure does the work immediately.

Safety and environmental considerations

Softwash solutions contain bleach and other chemicals, so proper application is important. Professional operators understand dilution rates, dwell times, and how to protect landscaping, pets, and nearby surfaces from chemical damage. They also know which solutions are safe for different materials—a roof might need a different product than vinyl siding.

Most softwash solutions used by professional contractors are biodegradable and break down safely in soil and water systems. However, runoff still needs to be managed, especially near storm drains or sensitive areas. A reputable contractor will take steps to contain and direct runoff appropriately and will inform you about any precautions you need to take before they arrive.

If you have pets or a garden, let your contractor know before they start. They can protect those areas or adjust their approach to minimize risk.

Finding a softwash contractor in South Carolina

Many pressure washing companies in South Carolina offer softwash as part of their service menu, but not all have the same level of experience or equipment. When you contact a contractor, ask specifically whether they offer softwash and what surfaces they've treated with it. Ask about their solution brands, dwell times, and how they handle runoff.

Check whether they're licensed and insured. South Carolina doesn't require a specific license for pressure washing or softwash, but contractors should carry liability insurance and workers' compensation if they have employees. Ask for references from recent softwash jobs—ideally on the same material type you need cleaned.

Get a written estimate that specifies the square footage, the solution being used, the dwell time, and any surface preparation or protection they'll provide. A clear estimate helps you compare contractors fairly and prevents surprises when the bill arrives.

Frequently Asked Questions

Will softwash damage my vinyl siding?

No, softwash is designed to clean vinyl safely. The low pressure won't force water behind the siding or crack panels. High-pressure washing is what damages vinyl, which is why softwash is the standard method for vinyl homes. A professional operator will use appropriate pressure and solution strength for your specific siding type.

How long do softwash results last?

Results typically last six months to a year, depending on your climate and the surface. South Carolina's humidity means mold and algae can return faster than in drier regions. Some homeowners schedule softwash annually as preventive maintenance. Pressure washing results usually last only a few weeks because it doesn't kill the organisms causing the growth.

Can I softwash my roof myself?

Roof softwash requires specialized equipment, knowledge of shingle types, and safety precautions. Most homeowners should hire a professional. DIY attempts risk personal injury from falls, damage to shingles, or improper chemical application. Professional contractors carry insurance and know how to protect your roof while cleaning it.

Is softwash safe for my landscaping?

Softwash solutions can damage plants if they're not managed carefully. Tell your contractor about any landscaping near the work area. They can cover plants, adjust their application method, or rinse the area afterward to protect your garden. Most professional-grade solutions are biodegradable, but concentration matters.

What's the difference between softwash and pressure washing cost?

Softwash typically costs 20 to 50 percent more per job because it requires more time, specialized equipment, and trained operators. However, because results last longer and protect your surfaces better, the cost per year of cleanliness is often comparable or even lower than repeated pressure washing.