Regular house washing removes moss, lichen, algae, and grime — protecting your cladding and paint and keeping your home looking its best. Here's what house washing costs in Christchurch in 2026.
Christchurch House Washing Rates 2026
| Service | Christchurch typical cost |
|---|---|
| Full house wash (standard 3-bed) | $350–$800 |
| House wash + treatment (moss/mould) | $500–$1,200 |
| Driveway waterblast (standard) | $180–$450 |
| Deck waterblast and clean | $150–$500 |
| Roof wash and treatment | $130–$360 |
| Fence wash (per m linear) | $5–$15/m |
| Gutter flush (included with house wash) | Often included |
| Soft wash (chemical wash, low pressure) | $350–$900 |
All prices GST inclusive. Below auckland and wellington.
Christchurch House Washing Market
Christchurch's dry easterly winds blow dust and grime onto homes. House washing before repainting is especially important in Canterbury.
Waterblasting vs Soft Washing
Waterblasting (high pressure): Uses high-pressure water to remove dirt and biological growth. Effective on concrete, brick, and robust cladding. Can damage weatherboards, painted surfaces, or older cladding if done incorrectly — confirm your washer knows your cladding type.
Soft washing (low pressure + chemicals): Uses biodegradable chemicals (sodium hypochlorite or similar) at low pressure to kill and remove moss, lichen, and mould. Safer for painted surfaces, cedar weatherboards, and tile roofs. Results last longer as the chemical kills spores rather than just removing visible growth.
Roof washing: Most professionals recommend soft washing for roofs — high pressure can lift tiles, damage coatings, and void warranties.
Protecting Your Christchurch Home
- House wash every 1–3 years depending on aspect and climate
- North-facing walls need washing less often than south and west-facing surfaces
- Treat after washing with a moss/mould inhibitor to slow regrowth
- Wash before repainting — paint won't adhere to dirty or biological-covered surfaces
Find Christchurch house washers: House Washers Christchurch | Post a Job Free
Frequently Asked Questions
How much does house washing cost in Christchurch? Standard 3-bed house wash: $350–$800. Including moss/mould treatment: $500–$1,200.
How often should I wash my house in Christchurch? Every 1–3 years for most Christchurch homes. Shaded, south-facing, or coastal properties may need annual washing.
Can waterblasting damage my cladding? Yes — high pressure can damage weatherboards, painted surfaces, and some cladding types. A professional will use appropriate pressure for your cladding. Soft washing is safer for older or more delicate surfaces.
Related: House Washing Cost NZ | Waterblasting Cost NZ | Exterior House Painting Cost NZ