Decks are one of the best features of a Christchurch home — ideal for entertaining, relaxing, or soaking up summer sun. But after a damp winter and months of exposure to tree debris, grime, and moss, most decks need serious attention before they’re safe and ready to use again.
At Metro Water Blasting, we provide professional deck cleaning services across Christchurch, restoring timber surfaces with safe, low-pressure washing that brings back their natural beauty — without damage.
Why Regular Deck Cleaning Matters
Christchurch’s climate encourages all the things timber hates:
- Moisture buildup causes mould and algae
- Lichen and moss make decks dangerously slippery
- UV exposure from dry summer months causes timber to crack and fade
- Tree debris and pollen discolour timber and feed organic growth
Left untreated, decks:
- Become unsafe to walk on
- Accelerate in weathering and rot
- Require earlier staining or replacement
A simple annual clean protects your investment and restores usability.
What Our Deck Cleaning Service Includes
We use adjustable, low-pressure washing systems to clean timber decks thoroughly without gouging or damaging the surface.
Our process includes:
- ✅ Pre-inspection of timber type and surface condition
- ✅ Low-pressure water blasting to remove mould, dirt, algae, and lichen
- ✅ Treatment for high-moss or high-traffic zones
- ✅ Rinsing around posts, stairs, and balustrades
- ✅ Advice on re-oiling or staining timelines
We clean:
- Hardwood decks (Kwila, Vitex, Garapa)
- Pine decks (pre-stained or bare)
- Composite decking (low-pressure only)
- Multi-level, elevated, or ground-level builds
Christchurch Suburbs That Benefit Most from Deck Cleaning
1. Cashmere, Hillsborough & Huntsbury
Decks on the Port Hills are often shaded and exposed to hillside runoff. Mould builds quickly and safety becomes a concern.
2. Merivale, Fendalton & Ilam
Leafy properties with mature trees drop constant debris — ideal conditions for algae and discolouration.
3. Wigram, Halswell & Hornby
Modern homes with north-facing decks still collect airborne dust, pollen, and staining from BBQs and furniture.
4. Sumner, Redcliffs & Southshore
Coastal air and salt residue increase timber wear and staining. Soft cleaning protects exposed surfaces from premature ageing.
When Should You Clean Your Deck?
| Deck Condition | Recommended Action |
|---|---|
| Post-winter moss buildup | Immediate clean + preventative spray |
| Before oiling or staining | Clean 2–5 days prior for best results |
| Annual spring refresh | Clean every 12 months |
| Before selling your home | Adds instant value and appeal |
Why Choose Metro Water Blasting?
✔️ Deck-safe pressure equipment – No scarring or gouging
✔️ Timber-specific cleaning techniques – We treat pine, hardwood, and composite differently
✔️ Local Christchurch crews – We understand local weather and materials
✔️ Fast quotes, reliable bookings – No waiting weeks for service
✔️ Fully insured – Peace of mind every step of the way
Bundle & Save with Full Exterior Packages
Your deck isn’t the only part of your home that needs a clean. Combine deck cleaning with:
We offer discounted rates when you book multiple services at once.
What Christchurch Homeowners Say
“Our deck was black with mould after winter. Metro cleaned it up in an hour and it looks like new. No damage, just great results.” – Fiona D., Ilam
“Booked a deck and house wash before selling in Cashmere. The agents said it added serious value. Highly recommend.” – Craig T., Cashmere
Book Your Deck Clean in Christchurch Today
Don’t wait for moss to become a slip hazard — or for sun damage to crack your timber. Book a safe, effective deck clean with Metro Water Blasting today.
📞 Call 0800 997 997 or get your free quote online
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