Sometimes the best way to understand the impact of professional exterior cleaning is to see it for yourself.
Across Auckland, we regularly transform homes affected by mould, algae, and built-up grime — restoring them to a clean, fresh finish.
In this post, we’ll walk you through a real house washing transformation, explain what caused the build-up, and show how professional cleaning can completely restore your home.
The Problem: Before the House Wash
(Insert your BEFORE image here)
At first glance, the property showed clear signs of neglect — something we see often across Auckland homes.
Issues we identified:
- Green mould and algae on exterior walls
- Black streaking under gutters
- Dirt and grime build-up across cladding
- Dull, faded appearance
👉 These are the exact issues we explained in our guide on why houses turn green in Auckland.
What Causes This Build-Up?
This type of staining doesn’t happen overnight.
It’s usually caused by:
- Constant moisture and humidity
- Shaded areas that don’t dry properly
- Dirt and organic material settling on surfaces
- Lack of regular exterior cleaning
👉 Over time, this leads to heavy mould and algae growth.
The Process: How We Cleaned the Property
To safely restore the home, we used a soft washing method — the same approach explained in our comparison of soft washing vs water blasting.
Step 1: Pre-Treatment
We applied a specialised solution designed to:
- Break down dirt and grime
- Kill mould and algae at the root
Step 2: Soft Wash Application
Using low-pressure equipment, we:
- Gently cleaned all exterior surfaces
- Avoided damage to paint and cladding
- Ensured even coverage across the property
Step 3: Rinse and Finish
The home was rinsed thoroughly, leaving:
- Clean walls
- Brighter surfaces
- A fresh, restored look
The Result: After the House Wash
(Insert your AFTER image here)
The transformation speaks for itself.
Results achieved:
- Complete removal of mould and algae
- Bright, clean exterior surfaces
- Restored street appeal
- A property that looks years newer
👉 This is the power of professional house washing in Auckland
Why Soft Washing Makes the Difference
Unlike high-pressure cleaning, soft washing:
- Treats the root cause (not just surface dirt)
- Delivers longer-lasting results
- Protects paint and materials
👉 That’s why professionals like Metro Water Blasting use this method.
How Long Will Results Last?
With proper treatment:
- Most homes stay clean for 6–12 months or longer
- Regular maintenance keeps your property looking its best
Combine With Other Services for Full Transformation
Many homeowners choose to upgrade their results by combining:
- Gutter cleaning (to prevent streaking and overflow)
- Roof treatment (to stop moss spreading)
- Driveway cleaning (to match the fresh exterior)
👉 A full exterior clean delivers the best long-term outcome.
Is Your Home Next?
If your home looks similar to the “before” photo, it’s time to act.
Common signs include:
- Green staining on walls
- Black streaks under gutters
- Dull or dirty cladding
👉 The sooner you clean it, the easier it is to restore.
Book a House Wash in Auckland
Want results like this for your home?
👉 Visit: https://www.metrowaterblasting.co.nz/house-wash-auckland/
👉 Call: 0800 997 997