What Is Soft Washing & Why Does It Matter?
Soft washing is a low-pressure exterior cleaning method that uses specialized biodegradable cleaning solutions to safely remove mold, mildew, algae, lichen, and dirt from your home or business. Unlike traditional pressure washing, soft washing relies on the cleaning solution — not brute force — to do the work.
This makes soft washing the preferred method for delicate surfaces like vinyl siding, stucco, wood shakes, painted surfaces, and roof shingles. The pressure used is roughly equivalent to a garden hose — about 60 PSI — which means zero risk of cracking siding, forcing water behind walls, or voiding warranties.
For Long Island homeowners, soft washing isn't just a cosmetic service. Our humid coastal climate creates the perfect breeding ground for organic growth. Salt air from the Sound and the Atlantic, seasonal moisture swings, and warm summers mean mold, algae, and mildew take hold fast — especially on north-facing walls and shaded areas under mature trees.
Our Soft Washing Process — Step by Step
1. Property Assessment
Every job starts with a careful inspection. We walk your entire property, identifying surface types (vinyl, wood, stucco, brick, composite), problem areas, severity of growth, and anything that needs special attention or protection.
2. Plant & Landscape Protection
Before any cleaning solution touches your home, we pre-rinse all landscaping, cover delicate plants, and protect outdoor furniture and fixtures. Our solutions are biodegradable, but we take extra precautions because that's how we operate.
3. Solution Application
We apply our custom-blended cleaning solution at low pressure using commercial soft wash equipment. The solution is applied from the bottom up to ensure complete, even coverage. It begins working immediately, penetrating organic growth and killing mold, algae, and mildew at the root level.
4. Dwell Time
The solution needs time to work — typically 10-15 minutes depending on severity. During this time, it breaks down years of accumulated organic buildup, dissolved dirt, and environmental staining. This is where soft washing's advantage becomes clear: it doesn't just blast off surface growth, it kills organisms at the cellular level.
5. Low-Pressure Rinse
A gentle rinse reveals your clean surfaces. The transformation is immediate and dramatic — years of grime washed away, revealing the original color and beauty of your home's exterior.
6. Final Inspection
We walk the property again, checking every surface. Any spots that need additional attention get it before we leave. We don't leave until the job meets our standard.
What We Soft Wash
- Vinyl siding — the most common siding on Long Island, and the most common surface for green algae and black mold streaks
- Wood siding & cedar shakes — requires gentler treatment to avoid grain damage; soft washing is ideal
- Stucco & EIFS — porous surfaces that trap dirt and algae deep; our solution penetrates and cleans thoroughly
- Brick & stone facades — removes algae, efflorescence, and environmental staining
- Painted surfaces — cleans without peeling or damaging paint
- Fences, pergolas & screen rooms — we clean it all
Need your entire house washed? That's our most popular service. Want the roof cleaned too? We handle that with the same soft wash technique — it's the only method shingle manufacturers approve.
How Long Do Results Last?
Because soft washing kills organic growth at the root rather than just blasting it off, results typically last 2-3 years. Compare that to garden-hose scrubbing or amateur pressure washing where growth returns within months. The cleaning solution leaves a residual that continues inhibiting regrowth long after we leave.
What Affects the Cost of Soft Washing?
Every property is different. The main factors that affect soft washing pricing on Long Island include:
- Home size — square footage of exterior surface area
- Number of stories — two and three-story homes require additional equipment and time
- Severity of growth — heavily stained homes take longer and require more solution
- Surface types — some materials require different solution concentrations
- Access — steep terrain, dense landscaping, or limited access adds complexity
We provide free, no-obligation estimates for every job. No surprises, no hidden fees. You'll know exactly what you're paying before we start.
Soft Washing vs. Pressure Washing: Know the Difference
Many homeowners don't realize these are completely different services. Pressure washing uses 2500-4000 PSI and is designed for hard surfaces like concrete driveways, pavers, and stone. Soft washing uses about 60 PSI with specialized cleaning solutions and is designed for everything else — siding, roofs, wood, and painted surfaces.
Using pressure washing on surfaces that need soft washing causes real damage: cracked siding, water forced behind walls, stripped paint, splintered wood, voided roof warranties. This is why choosing a company that knows the difference matters.
Serving All of Long Island
Best Power Wash LI provides soft washing services across Nassau County and Suffolk County — from Hempstead to Huntington, Babylon to Brookhaven, Massapequa to Patchogue, and every community in between. Veteran-owned, fully insured, and committed to results.