Wellington’s weather is tough on homes. Constant wind, salty coastal air, heavy rain, and long periods of shade create the perfect conditions for mould, mildew, algae, and grime to build up on exterior surfaces. Over time, this doesn’t just make a house look dirty — it can actually damage paint, cladding, and weatherboards.
That’s why professional house washing in Wellington isn’t just about appearance. It’s about protecting your property, extending the life of your exterior surfaces, and keeping your home healthy year-round.
At Metro Water Blasting, we provide safe, low-pressure soft house washing across Wellington, using methods designed specifically for the region’s climate and housing styles.
👉 Request a quote here: https://www.metrowaterblasting.co.nz/
Why House Washing Is Essential in Wellington
Wellington homes face some unique challenges compared to other parts of New Zealand:
- High wind exposure spreads dirt and salt onto exterior walls
- Coastal air accelerates mould and lichen growth
- Shaded hills and valleys trap moisture
- Frequent rain feeds algae and mildew
Without regular washing, these contaminants slowly break down paint coatings and exterior finishes, leading to premature repainting and costly repairs.
A professional house wash removes these contaminants safely and thoroughly before damage occurs.
What Is Soft House Washing?
Unlike traditional high-pressure water blasting, soft house washing uses:
- Low water pressure
- Specialised detergents
- Controlled application methods
This allows us to:
- Kill mould, mildew, and algae at the root
- Clean delicate surfaces without damage
- Prevent streaking, water ingress, and paint wear
Soft washing is the recommended method for most Wellington homes, especially weatherboard, plaster, brick, and modern cladding systems.
House Washing Services Across Wellington
We provide professional house washing throughout Greater Wellington, including:
- Wellington Central
- Thorndon
- Te Aro
- Mount Victoria
- Mount Cook
- Newtown
- Island Bay
- Berhampore
- Kilbirnie
- Lyall Bay
- Miramar
- Seatoun
- Karori
- Kelburn
- Northland
- Wadestown
- Johnsonville
- Newlands
- Khandallah
- Ngaio
- Crofton Downs
- Brooklyn
- Aro Valley
- Hataitai
- Strathmore Park
Whether your home is coastal, hillside, shaded, or fully exposed, our methods are tailored to suit its environment.
Surfaces We Clean During a House Wash
A full exterior house wash can include:
- Weatherboards
- Brick and block walls
- Plaster and rendered surfaces
- Modern cladding (including Linea and fibre cement)
- Painted surfaces
- Eaves, soffits, and fascias
- Exterior trims and window surrounds
We also rinse windows, frames, and surrounding areas to leave your home looking consistently clean from top to bottom.
Benefits of Professional House Washing
1. Protects Paint and Cladding
Mould and algae feed on organic materials in paint and sealants. Removing them early helps extend the lifespan of your exterior coatings.
2. Improves Street Appeal
A clean exterior instantly makes your home look newer, brighter, and well cared for — ideal before selling or renting.
3. Prevents Costly Repairs
Built-up grime can trap moisture against walls, leading to rot, cracking, or surface failure over time.
4. Healthier Living Environment
Mould spores don’t just stay outside. Removing them improves air quality around your home.
How Often Should You Wash Your House in Wellington?
For most Wellington properties, we recommend:
- Every 12 months for exposed or coastal homes
- Every 18–24 months for sheltered or shaded properties
Homes in areas like Island Bay, Lyall Bay, Seatoun, and Miramar may benefit from more frequent washing due to salt exposure.
House Washing vs Water Blasting
Many homeowners ask whether water blasting is suitable for house washing. In most cases, it’s not recommended.
| Soft House Washing | Water Blasting |
|---|---|
| Low pressure | High pressure |
| Safe for paint & cladding | Can damage surfaces |
| Kills mould & algae | Often removes surface dirt only |
| Long-lasting results | Faster regrowth |
For most Wellington homes, soft washing delivers better results with far less risk.
For harder surfaces like driveways and paths, see our Water Blasting in Wellington services.
Why Choose Metro Water Blasting?
We’re trusted across Wellington because we:
- Use industry-approved soft wash systems
- Adjust methods for Wellington’s climate
- Fully insure all work
- Protect plants, paths, and surrounding areas
- Deliver consistent, long-lasting results
Our team understands Wellington homes — from old villas and bungalows to modern townhouses and new builds.
Learn more about our Wellington house washing services here:
👉 https://www.metrowaterblasting.co.nz/house-wash-wellington/
Ideal Times of Year for House Washing
House washing can be done year-round, but the most popular times in Wellington are:
- Spring: remove winter grime and mould
- Summer: freshen up before entertaining
- Autumn: prepare surfaces before winter
Soft washing does not rely on extreme heat, so it’s safe and effective in most weather conditions.
Preparing Your Home for a House Wash
Before we arrive, we recommend:
- Closing all windows and doors
- Removing fragile outdoor items
- Letting us know about any existing paint issues
We take care of the rest — including protecting gardens and surrounding surfaces.
Request a House Washing Quote in Wellington
If your home is looking dull, stained, or mouldy, now is the perfect time to act. Professional house washing restores your home’s appearance while protecting it from long-term damage.
👉 Request your free quote here:
https://www.metrowaterblasting.co.nz/
We service all Wellington suburbs and tailor every wash to suit your home’s materials and exposure.