When it comes to maintaining the exterior of your commercial property, choosing the right cleaning method is critical. Not all surfaces can withstand the same level of pressure, and using the wrong technique can lead to costly damage.
Two of the most common exterior cleaning methods are soft washing and pressure washing. While they may seem similar, they serve very different purposes. Understanding the difference can help you protect your building, extend the life of your surfaces, and maintain a clean, professional appearance.
What Is Pressure Washing?
Pressure washing uses high-pressure water to remove dirt, grime, mold, and other contaminants from hard surfaces. This method is highly effective for removing stubborn buildup and restoring heavily soiled areas. However, truly effective pressure washing goes beyond water alone. At DPM Surface Care, we combine professional-grade pressure washing with specialized cleaning chemistry to deliver deeper, longer-lasting results.
We pre-treat surfaces before cleaning to break down embedded dirt, algae, and organic buildup. After pressure washing removes the visible contaminants, we apply a post-treatment to kill any remaining microbial roots. This process helps prevent regrowth, keeping surfaces cleaner for up to twice as long as standard pressure washing alone.
Best Uses for Pressure Washing:
- Concrete sidewalks and walkways
- Parking lots and garages
- Brick and stone surfaces
- Loading docks
- Heavy-duty industrial areas
Pressure washing is ideal for surfaces that can handle intense force without being damaged. When combined with proper pre- and post-treatment, it delivers not just immediate results, but longer-lasting cleanliness.
What Is Soft Washing?
Soft washing uses low-pressure water combined with specialized cleaning solutions to safely clean more delicate surfaces. Instead of relying on force, it relies on chemistry to break down dirt, algae, mold, and bacteria at the source.
Best Uses for Soft Washing:
- Roofs
- Vinyl siding
- Stucco and painted surfaces
- Exterior building facades
- Fences and signage
. 
Soft washing not only cleans the surface but also treats and eliminates organic growth, helping to keep surfaces cleaner for longer.
Key Differences Between Soft Washing and Pressure Washing
1. Water Pressure
- Pressure Washing: High pressure (can cause damage if misused)
- Soft Washing: Low pressure (safe for delicate surfaces)
2. Cleaning Method
- Pressure Washing: Relies on force (and, when done professionally, pre- and post-treatment chemistry)
- Soft Washing: Uses cleaning solutions to break down contaminants
3. Surface Compatibility
- Pressure Washing: Best for hard, durable surfaces
- Soft Washing: Ideal for fragile or sensitive materials
4. Longevity of Results
- Pressure Washing: Removes surface-level dirt (extended significantly with proper treatment)
- Soft Washing: Eliminates root causes like algae and bacteria for longer-lasting results
Why Choosing the Right Method Matters
Using the wrong cleaning method can lead to serious issues:
- Damaged siding or roofing
- Etched concrete or surfaces
- Water intrusion behind walls
- Reduced lifespan of building materials
For facility managers and property owners, this isn’t just about appearance, it’s about protecting your investment and avoiding unnecessary repair costs. It’s also important to understand that while many in-house teams may have access to pressure washers, equipment alone doesn’t guarantee results. Without the knowledge of proper chemical pre-treatment and post-treatment, surfaces may look clean temporarily, but organic growth can return quickly. That’s where professional service makes a measurable difference.
A Strategic Approach to Exterior Cleaning
The most effective exterior cleaning plans don’t rely on just one method. Instead, they combine both soft washing and pressure washing, along with the right chemistry, based on the specific surfaces and conditions of your property.
For example:
- Soft washing may be used on the building facade and roof
- Pressure washing (with pre- and post-treatment) may be used on sidewalks, entrances, and loading areas
This tailored approach ensures every surface is cleaned safely, thoroughly, and with longer-lasting results.
Trust the Experts for the Right Solution
At DPM Surface Care, we specialize in identifying the right cleaning method for every surface. Our team goes beyond standard cleaning by combining pressure, soft washing, and advanced chemical treatments to deliver a deeper clean that lasts.
This level of expertise is what sets us apart and why our clients see better results compared to basic, in-house pressure washing. Whether your property needs a deep clean or routine maintenance, we’ll create a customized plan that keeps your facility looking its best.
Ready to Refresh Your Property?
Don’t risk damaging your building or settling for short-term results with the wrong cleaning method. Let the experts handle it.
Contact your nearest DPM Surface Care location today for your pressure washing and soft washing needs. Get a customized solution that protects your property while delivering a longer-lasting clean. Or request a quote online by clicking here.
- Knoxville, TN: (865) 692-8337
- Chattanooga, TN: (423) 455-0830
- Nashville, TN: (615) 780-2136
