It's the first question most homeowners ask us: "What's the difference between soft washing and pressure washing?" The short answer is that they're two completely different techniques used for two completely different jobs, and using the wrong one can do thousands of dollars of damage to your house.
Pressure washing is what most people picture when they hear the term. A high-pressure stream of water — usually between 2,500 and 4,000 PSI — blasts grime off a hard surface like concrete, brick, or stone. It's fast, it's satisfying, and on the right surfaces it produces a dramatic visual transformation. But that same high-pressure stream is also capable of stripping paint off siding, forcing water up behind vinyl panels, driving moisture into window seals, and cracking soft mortar.
Soft washing uses chemistry instead of force. A low-pressure sprayer applies a biodegradable surfactant and sodium hypochlorite blend at around 50–100 PSI — less pressure than a garden hose with your thumb over it. The chemistry kills the mildew, algae, and bacteria at the root, and then a gentle rinse carries everything away. Manufacturers of vinyl siding, Hardie plank, stucco, and asphalt shingles all recommend soft washing — not pressure washing — for exterior cleaning.
Here's the rule we use at TruShine: hard surfaces get pressure, soft surfaces get chemistry. Your driveway, your paver patio, your stone walkway — those can take a 24-inch surface cleaner at 3,000 PSI. Your roof, your siding, your painted trim, your shutters, your gutters — those get soft-washed. Your deck might get either, depending on the wood condition and age.
The mistake we see most often on homes we inspect? A neighbor or a well-meaning DIY-er took a pressure washer to vinyl siding and left a trail of gouges, stripped paint, and water behind the panels. That water turns into mold inside the walls, and you don't see the problem for a year. The cleaning was free. The repair was thousands.
If you're not sure which method your home needs, call us at (843) 279-2509 and we'll do a free walk-through. No pressure, no upsell, just a written quote with the right technique for each surface on your property.