When it comes to cleaning the exterior of your home or business, not all surfaces should be treated the same. That’s where the choice between pressure washing and soft washing comes in.
At Exterior Cleaning WA, we often get asked: “What’s the difference between the two, and which one is right for my property?” Choosing the wrong method can lead to damage — or at best, an ineffective clean. Let’s break it down.
�� What Is Pressure Washing?
Pressure washing is the use of high-pressure water — often above 2000 PSI — to remove dirt, grime, stains, mould, and even loose paint. It’s a powerful and aggressive cleaning method that’s best suited to hard, non-porous surfaces like:
- Concrete driveways
- Paved paths and patios
- Brick and retaining walls
- Outdoor stairs
- Some fences and exterior tiles
This method uses sheer force to strip away surface build-up and is excellent for heavily soiled areas.
�� What Is Soft Washing?
Soft washing is a low-pressure cleaning technique that uses specialised cleaning agents to break down and kill organic matter such as mould, algae, mildew, and lichen. It’s ideal for more delicate surfaces such as:
- Roof tiles
- Rendered or painted walls
- Weatherboards
- Timber decking
- Solar panels and windows
Instead of relying on water force, soft washing works on a chemical level, gently lifting contaminants without damaging surfaces. It also sanitises and helps prevent regrowth, making it perfect for long-term results.
�� Why the Right Method Matters
Using the wrong method can do more harm than good. For example, pressure washing a rendered wall or roof tile can lead to cracking, paint removal, or water penetration. Similarly, soft washing a heavily soiled driveway might not deliver the level of clean you’re after.
At Exterior Cleaning WA, we assess each job based on surface type, condition, and cleaning goals — then apply the right method to get the best result safely and efficiently.
�� Pressure Wash vs Soft Wash — Quick Comparison
| Feature | Pressure Wash | Soft Wash |
| Water Pressure | High (1500–3000+ PSI) | Low (under 500 PSI) |
| Cleans | Grime, grease, dirt, stains | Mould, algae, mildew, lichen |
| Ideal For | Concrete, brick, stone | Roofs, render, painted exteriors |
| Surface Sensitivity | Not suitable for delicate areas | Safe for soft, painted, or fragile |
| Sanitises | ❌ | ✅ Yes – kills organic matter |
��️ Our Expert Tip
If your surface is hard, stained, and durable — go with pressure washing. If it’s delicate, painted, or prone to algae/mould — soft washing is the safer and more effective choice.
�� Ready to Restore Your Property?
Whether you need a deep driveway clean or a gentle roof wash, the team at Exterior Cleaning WA is ready to help. We use professional equipment, safe cleaning agents, and years of experience to deliver outstanding results — without the risk.
�� Call us today on 0429 059 359 or visit
�� www.exteriorcleaningwa.com.au
for a free quote and personalised service.