Two methods, two jobs
Not all "pressure washing" uses high pressure. Professionals actually use two different methods, and picking the right one for each surface is the difference between a great result and expensive damage. Here is the plain-English version of how they differ and when each one is right.
What pressure washing is
Pressure washing — sometimes called power washing — uses highly pressurized water to blast dirt, grime, and loose material off hard surfaces. Think of it as a water sandblaster. It is fast, satisfying to watch, and exactly right for tough surfaces like concrete driveways, brick, and stone. The cleaning power comes from force.
What soft washing is
Soft washing uses low pressure — about the force of a garden hose — combined with specialized cleaning solutions. The solution does the work, not the pressure. It is applied to the surface, given time to kill algae, mold, and mildew down to the root, and then gently rinsed away. The cleaning power comes from chemistry, not force.
The key difference: killing vs. blasting
This is the part most people miss. High pressure blasts growth off the surface but leaves the roots alive in porous material. The algae looks gone — and grows back in months. Soft washing kills the growth at the root, so the surface stays clean much longer. On a Florida home fighting constant humidity, that difference matters enormously.
When soft wash wins
Roofs — always. Asphalt shingles, tile, and metal roofs should never see high pressure. Soft washing is the manufacturer-approved method: it kills the black algae streaks without stripping granules or voiding warranties. See our roof soft wash page.
House siding — almost always. Stucco, vinyl, fiber cement, and painted wood all clean beautifully with soft washing. High pressure cracks stucco, drives water behind vinyl siding, and peels paint. Our house soft wash page walks through the process.
Screens, fences, and painted surfaces. Pool screens tear under high pressure. Wood fences and decks get shredded. Painted surfaces lose their paint. All of these are soft-wash jobs — see our fence cleaning page for how wood and vinyl fences are handled.
When pressure washing wins
Concrete and pavers. Driveways, sidewalks, patios, and pool decks are built to take pressure. High pressure lifts embedded dirt, tire marks, and algae out of the pores. (Pavers need the right technique so the joint sand stays put — but that is still a pressure job.)
Brick and stone. Hard masonry handles pressure well, though old or crumbling mortar needs a gentler touch.
Why pressure alone fails on mold
Picture mold on stucco. A pressure washer rips the visible green off — and the surface looks clean for a few weeks. But stucco is porous, and the mold's roots are still alive inside those pores, feeding on Florida humidity. Within months, the green creeps back. Soft washing soaks the killing solution into the pores, destroying the roots. Same house, same climate — but the result lasts a year or more instead of a few months. That is why professionals soft wash siding even though pressure would be faster.
Common damage from the wrong method
High pressure on a shingle roof: stripped granules, shortened roof life, voided warranty. High pressure on stucco: cracks and water forced behind the wall. High pressure on a wood deck: shredded fibers and splinters. High pressure on screens: tears. Every one of these is a real, expensive, completely avoidable mistake — and every one comes from using the wrong method on the wrong surface.
What to ask any company
"Do you soft wash siding and roofs, or do you pressure wash everything?" If the answer is pressure for everything, keep looking. A real professional matches the method to the surface — pressure for concrete, soft wash for siding and roofs — and can explain why in plain language.
Want the right method on every surface? Request a free quote from Orlando Pressure Washing Pros — soft wash where it belongs, pressure where it works.
Frequently asked questions
Is soft washing just a weaker pressure wash?
No — it is a different process entirely. Soft washing relies on cleaning solutions to kill organic growth, using only garden-hose-level pressure to apply and rinse. It is gentler on surfaces but more effective against mold, algae, and mildew because it destroys the roots.
Will soft washing damage my plants?
Not when done properly. Professionals pre-wet plants, cover delicate ones, and rinse everything thoroughly after the wash. The solutions are diluted and rinsed away — plant protection is a standard part of the job, not an extra.
Why does soft washing cost more than a quick pressure blast?
Because it uses specialized solutions, takes more time to apply and dwell, and requires more skill to do safely. It also lasts far longer — a soft-washed house stays clean a year or more, while a pressure-blasted one regrows algae in months. Per month of clean, soft washing is the better value.
Can soft washing remove rust or oil stains?
Soft washing targets organic growth — algae, mold, mildew, and pollen. Rust and oil stains need different specialty treatments. A good company will tell you honestly which stains will come out and which need a separate approach.
How do I know which method my home needs?
Simple rule: siding, roofs, screens, wood, and anything painted get soft washed; concrete, pavers, brick, and stone get pressure washed. When you request a quote, the company should confirm the method for each surface without you having to ask.