When it comes to cleaning your home’s exterior, most homeowners in Auckland assume that high-pressure water blasting is the best option.
But that’s not always true.
In fact, using the wrong cleaning method can:
- Damage paint
- Force water into cladding
- Lead to costly repairs
That’s where soft washing comes in.
In this guide, we’ll break down:
- The difference between soft washing and water blasting
- When to use each method
- What’s safest for your home
- And how to get long-lasting results
What Is Water Blasting?
Water blasting uses high-pressure water to remove dirt, grime, and surface contaminants.
It’s powerful and effective — but only for certain surfaces.
Common uses:
- Concrete driveways
- Paths and patios
- Brick and hard surfaces
- Some commercial applications
👉 It’s great for hard surfaces — but risky for homes.
What Is Soft Washing?
Soft washing uses:
- Low-pressure water
- A specialised cleaning solution
This solution:
- Kills mould, algae, and lichen
- Breaks down dirt and organic growth
- Cleans surfaces gently without damage
👉 This is the preferred method for house washing in Auckland
Why This Matters in Auckland
As explained in our guide on why houses turn green in Auckland, the main issue isn’t just dirt — it’s living organisms like mould and algae.
👉 High pressure removes surface dirt
👉 Soft washing kills the root cause
Key Differences (Side-by-Side)
🔴 Water Blasting:
- High pressure
- Removes surface dirt
- Doesn’t kill mould spores
- Can damage paint and cladding
- Short-term results
🟢 Soft Washing:
- Low pressure
- Uses treatment solution
- Kills mould and algae at the root
- Safe for all exterior surfaces
- Long-lasting results
When Should You Use Water Blasting?
Water blasting is ideal for:
- Driveways
- Concrete surfaces
- Patios and paths
- Garage floors
👉 Especially useful for removing:
- Oil stains
- Built-up grime
- Moss on hard surfaces
When Should You Use Soft Washing?
Soft washing is best for:
- House exteriors
- Weatherboards and cladding
- Painted surfaces
- Roofs
- Fences and decks
👉 Anywhere you want a safe, damage-free clean
What Happens If You Use the Wrong Method?
Using high pressure on your house can:
- Strip paint
- Crack or damage cladding
- Force water behind walls
- Lead to mould inside your home
👉 This is one of the most common mistakes homeowners make.
Why Soft Washing Delivers Better Results
Soft washing doesn’t just clean — it treats the problem.
That means:
- Slower regrowth
- Longer-lasting clean
- Better protection for your home
👉 That’s why professionals like Metro Water Blasting rely on this method.
Cost Comparison – Is Soft Washing Worth It?
Some people think water blasting is cheaper — but:
- It may require more frequent cleaning
- It doesn’t prevent regrowth
- It can cause damage (costly repairs)
👉 Soft washing often works out better value long-term
The Best Approach (Combination Cleaning)
For most properties in Auckland:
👉 The best result comes from using BOTH methods:
- Soft washing → house, roof, cladding
- Water blasting → driveway, paths, concrete
👉 This gives a complete exterior clean.
Common Questions
Will soft washing damage plants?
No — when done correctly, the solution is diluted and safely applied.
How long does soft washing last?
Typically 6–12 months or longer, depending on conditions.
Can I do this myself?
DIY is possible — but:
- Results won’t last as long
- Risk of damage is higher
Related Services You Should Consider
If you’re cleaning your home exterior, you may also want:
- Gutter cleaning
- Roof moss and lichen treatment
- Driveway cleaning
👉 These services work together to keep your property in top condition.
Professional Exterior Cleaning in Auckland
If you want the job done properly, using the right method is key.
Professional house washing in Auckland ensures:
- Safe cleaning
- Long-lasting results
- No damage to your home
Get a Quote Today
Not sure which method is right for your property?
👉 Visit: https://www.metrowaterblasting.co.nz/house-wash-auckland/
👉 Call: 0800 997 997