Whether it’s slippery concrete, a grime-covered deck, or an aging fence — nothing restores exterior surfaces quite like professional water blasting. In Christchurch, properties endure a mix of mud, mould, dust, and plant debris year-round. From the salty air of Sumner to the tree-heavy streets of Merivale, surfaces get dirty fast.
At Metro Water Blasting, we help Christchurch homeowners and businesses refresh their outdoor spaces safely and thoroughly — with powerful, precision-controlled water blasting solutions that protect surfaces while cutting through years of grime.
What Is Water Blasting?
Water blasting (also called pressure washing) is the process of using high-powered water spray to clean exterior surfaces. It removes:
- Moss, mould, and algae
- Dirt and grime buildup
- Lichen and biofilm
- Paint flaking or prep for repainting
- Stains from concrete, wood, and weatherboards
Unlike DIY machines, our professional-grade systems use adjustable pressure settings to suit each surface — ensuring no damage to soft woods, concrete, or cladding.
Where We Use Water Blasting in Christchurch
We service residential homes, commercial buildings, driveways, schools, shops, decks, fences, and more.
Our most common jobs include:
✅ Driveway Cleaning
Remove years of black grime, tyre marks, and moss from concrete, pavers, or asphalt.
✅ Deck & Fence Washing
Soft timber needs the right pressure — we use low-pressure options to lift grime without stripping wood.
✅ Exterior House Washing Prep
Before painting or staining, we clean surfaces thoroughly to help new coatings last longer.
✅ Pathway & Concrete Areas
Stop slippery surfaces before they cause injury — ideal for homes, businesses, or rentals.
✅ Patios, Pergolas & Courtyards
Reclaim outdoor areas for use in spring and summer.
Christchurch Suburbs That Need Water Blasting Most
1. Merivale, Fendalton & Ilam
Tree-lined streets, clay soil, and aging properties make these areas prone to mouldy concrete paths, blackened fences, and dirty decks.
2. Cashmere & Hillsborough
Port Hills homes experience shade, runoff, and moss. Slippery stairs and algae-covered walls are common.
3. Sumner, Redcliffs & Southshore
Salt air causes surface staining and buildup. Driveways and fences often show heavy discolouration here.
4. Riccarton, Addington & St Albans
High-density housing and mixed-use buildings experience foot traffic grime and exterior build-up. Ideal for property managers.
5. Hornby, Wigram & Halswell
Newer subdivisions may not have moss issues, but they collect dust, dirt, and grime from traffic and construction.
Soft Wash vs High-Pressure: What’s Best?
At Metro Water Blasting, we adjust our equipment to suit your surface:
- Soft Wash: Used for delicate materials like weatherboard, painted surfaces, or timber fences. We often combine this with mild detergents.
- High-Pressure Water Blasting: Ideal for concrete, brick, pavers, or exposed aggregate. Fast, deep cleaning power.
We assess every job beforehand to avoid damage and maximise results.
How Often Should You Water Blast?
The frequency depends on property location, sun/shade exposure, and use. Here’s a general guideline for Christchurch homes:
| Surface Type | Recommended Cleaning |
|---|---|
| Concrete driveways | Every 12–18 months |
| Timber decks | Every 6–12 months |
| Exterior cladding prep | Before painting/staining |
| Patios & pathways | Every 12 months |
| Commercial exteriors | Every 6–12 months |
Homes near trees or in coastal zones may need more frequent cleans.
Why Choose Metro Water Blasting Christchurch?
✔️ Tailored pressure for each surface – no damage risk
✔️ Local Christchurch team with experience in all suburbs
✔️ Before/after photos available
✔️ Eco-safe detergents where needed
✔️ Fully insured + safety compliant
✔️ Fast quotes + flexible scheduling
Combine Water Blasting with Other Exterior Services
Want to refresh the full property? Many customers bundle with:
We offer discounted packages for combined services.
What Customers Are Saying
“Our deck was almost black from dirt and mould. The team came in and made it look brand new. Great job and super careful with the timber.” – Matt S., Ilam
“We had our concrete driveway and paths water blasted in Fendalton — fast, professional, and a huge improvement.” – Kylie L., Fendalton
Book a Water Blasting Service in Christchurch
Restore your home’s exterior the smart, safe way. From driveways to decks, our team will make your property shine again.
📞 Call 0800 997 997 or book online now