If you’ve ever called around for a quote and heard both “pressure washing” and “soft washing” tossed out by different companies, you’re not alone. A lot of homeowners in the Conway area use the terms interchangeably — but they’re very different techniques, and using the wrong one on the wrong surface can cause real damage.
Here’s what you actually need to know.
What Is Pressure Washing?
Pressure washing uses high-pressure water — typically 1,500 to 3,000 PSI or higher — to blast dirt, grime, mold, and staining off hard surfaces. The force of the water does most of the work.
Best used on:
- Concrete driveways and sidewalks
- Brick and stone patios
- Concrete block retaining walls
- Heavy equipment or vehicles
The high pressure is effective on dense, hard surfaces that can handle the force. On anything softer, that same pressure can strip paint, crack mortar, gouge wood, or force water behind siding — causing moisture damage that won’t show up until months later.
What Is Soft Washing?
Soft washing uses very low water pressure — closer to a garden hose — combined with a cleaning solution (usually a mix of water, bleach, and a surfactant) to kill mold, algae, mildew, and bacteria at the source. The chemistry does the cleaning, not the force.
Best used on:
- Vinyl, wood, or fiber cement siding
- Roof shingles
- Painted surfaces
- Screened enclosures and gutters
- Wood decks and fences
The key difference: pressure washing removes surface grime through force. Soft washing kills the biological growth — algae, mildew, mold — and then rinses it away gently. That’s why a soft-washed roof stays cleaner longer than one that was pressure washed.
The Mistake Homeowners Make Most Often
Letting a company pressure wash your roof or siding because it’s cheaper or faster.
Asphalt shingles are designed to shed water, not withstand 2,000+ PSI of direct water pressure. High-pressure washing can strip the protective granules off shingles, void your roof warranty, and shorten the life of your roof significantly.
Same with vinyl siding — pressure at the wrong angle can force water behind the panels, leading to mold growth inside your wall cavity.
Rule of thumb: If it’s soft (siding, roof, painted wood, fencing), it needs soft washing. If it’s hard (concrete, brick, stone), pressure washing is fine.
What Should You Ask a Company Before Hiring?
When you call a pressure washing company in the Conway area, ask these:
- Do you offer soft washing or only pressure washing? A company that only does high-pressure is not the right call for your roof or siding.
- What PSI do you use on siding? Should be under 500 PSI for soft washing.
- What cleaning solution do you use? Reputable companies should be able to explain this.
- Are you insured? This matters if something gets damaged.
Side-by-Side Comparison
| Pressure Washing | Soft Washing | |
|---|---|---|
| PSI | 1,500–4,000+ | 100–500 |
| Cleaning agent | Water only | Chemical solution |
| Best for | Concrete, brick, stone | Siding, roofs, wood |
| Roof safe? | No | Yes |
| Results last | Shorter | Longer (kills growth) |
Bottom Line for Arkansas Homeowners
Arkansas heat and humidity are a perfect recipe for algae and mildew growth on roofs and siding. If you’re seeing green or black streaking on your house, that’s biological growth — and pressure washing will temporarily remove it but soft washing will kill it.
For driveways, patios, and walkways that just need dirt removed? Pressure washing is fast, effective, and the right tool.
Browse top-rated pressure washing companies in Central Arkansas — ranked by real Google reviews, with current summer specials listed where available.