Soft Washing vs. Pressure Washing: Which Does Your Surface Need?

By Gunderson Soft Wash Services · Updated October 15, 2026

The two methods clean in different ways, and each one is right for different surfaces. Using the wrong one is how homes get damaged.

The difference in one minute

Pressure washing uses strong water pressure to blast dirt off hard, durable surfaces. Soft washing uses low pressure plus a cleaning solution that kills algae, mold and mildew, then a gentle rinse. Pressure removes dirt by force. Soft washing removes the growth itself.

Which method fits which surface

• Vinyl and painted siding: soft washing. High pressure can force water behind panels or strip paint.
• Asphalt shingle and other roofs: soft washing. Pressure can remove the granules that protect the roof.
• Concrete driveways, sidewalks and patios: pressure washing. Concrete can handle it, and it lifts oil, mud and ground-in dirt.
• Wood decks and fences: a controlled approach with gentle pressure and a cleaner. Too much pressure leaves marks and raises the wood grain.
• Brick and pavers: depends on the condition. Older mortar joints need care.
• Windows: careful hand cleaning, not pressure.

What goes wrong with the wrong method

• Gouged or streaked wood
• Water pushed behind siding, into window seals or under shingles
• Stripped paint and stain
• Roof granules washed off
• Stains that come right back because the growth was never killed

How to get an accurate quote

Send the address, a few photos, and the surfaces you want cleaned. That is enough to tell which method each surface needs and what the job includes.

Common questions

Is soft washing as effective as pressure washing?

For siding and roofs, soft washing works better because the cleaning solution kills the algae and mildew instead of only removing surface dirt.

Can one visit cover both soft washing and pressure washing?

Yes. A single quote can include soft washing for siding and roofs and pressure washing for concrete, with the right method chosen for each surface.

Learn more about our soft washing service, or see the towns we serve within about 60 miles of Mauston.