If you’re researching exterior cleaning prices in 2026, you’re likely trying to answer one question:
“How much should this actually cost — and what am I paying for?”
Exterior cleaning prices vary widely across New Zealand depending on property size, condition, access, and the service required. Unfortunately, many homeowners are quoted vastly different prices without a clear explanation of why.
This 2026 pricing authority guide breaks down realistic exterior cleaning costs, explains what affects pricing, and helps you understand where your money goes — so you can make an informed decision and avoid under-serviced or rushed work.
Why Exterior Cleaning Prices Vary So Much
There is no single “flat rate” for exterior cleaning. Pricing is influenced by several real-world factors, including:
- Property size and layout
- Level of dirt, mould, or moss buildup
- Roof pitch and height
- Access and safety requirements
- Surface type (painted, concrete, timber, metal)
- Location and environmental exposure
Cheaper prices often mean:
- Rushed jobs
- High pressure used instead of correct methods
- No treatment for regrowth
- Increased risk of damage
House Washing Prices in 2026
House washing prices in 2026 reflect increased labour costs, safety compliance, and the use of soft washing systems rather than damaging high pressure.
Typical 2026 House Washing Price Range
- Small homes: $250 – $350
- Medium homes: $350 – $550
- Large homes / two-storey: $550 – $900+
What Affects House Washing Cost
- Exterior wall area
- Degree of mould and algae buildup
- Cladding type
- Height and access
Professional house washing removes mould at the root, not just surface dirt.
Roof Cleaning Prices in 2026
Roof cleaning is one of the most misunderstood services when it comes to pricing.
Typical 2026 Roof Cleaning Price Range
- Standard homes: $450 – $900
- Large or complex roofs: $900 – $1,600+
Why Roof Cleaning Costs More
- Safety equipment and working-at-heights compliance
- Roof material sensitivity
- Treatment-based cleaning (not pressure blasting)
- Time required for safe application
Proper roof cleaning focuses on longevity, not instant cosmetic results.
Roof Moss Treatment Pricing (2026)
Moss treatment is often separate from cleaning and is essential for long-term control.
Typical Moss Treatment Pricing
- Standard home: $300 – $600
- Large / shaded roofs: $600 – $1,000+
Treatment:
- Kills moss at the root
- Slows regrowth
- Reduces moisture retention
This is one of the highest ROI services for roof longevity.
Gutter Cleaning Prices in 2026
Gutter cleaning prices depend heavily on access, height, and debris volume.
Typical 2026 Gutter Cleaning Prices
- Single-storey homes: $180 – $300
- Two-storey homes: $300 – $550
- Heavy debris or internal gutters: $550+
Why Gutter Cleaning Is Not a “Quick Job”
- Downpipes must be cleared
- Debris often compacts into sludge
- Safety risks increase with height
Cheap gutter cleaning often skips downpipe flushing — leading to leaks later.
Concrete, Driveway & Patio Cleaning Prices (2026)
Concrete cleaning pricing depends on surface area, staining, and buildup severity.
Typical 2026 Concrete Cleaning Prices
- Small driveway / paths: $250 – $400
- Large driveways / patios: $400 – $900+
- Oil or heavy staining: additional cost
Professional cleaning improves safety and surface lifespan, not just appearance.
Deck Cleaning Prices in 2026
Deck cleaning requires care — not excessive pressure.
Typical Deck Cleaning Prices
- Small decks: $250 – $400
- Medium decks: $400 – $700
- Large / multi-level decks: $700 – $1,200+
Improper cleaning can permanently damage timber, making professional service worth the cost.
Fence Cleaning Prices in 2026
Fence cleaning depends on length, height, and material.
Typical Fence Cleaning Prices
- Standard residential fencing: $300 – $700
- Large boundary fencing: $700 – $1,200+
Clean fences significantly improve street appeal and property value.
Why “Cheap” Exterior Cleaning Often Costs More Long-Term
Lower quotes often mean:
- No mould treatment
- Excessive pressure used
- Rushed labour
- No safety compliance
This can lead to:
- Paint damage
- Water ingress
- Faster regrowth
- Shorter service lifespan
Quality exterior cleaning should reduce future maintenance costs, not create them.
How Often Should You Budget for Exterior Cleaning?
Typical Maintenance Cycles
- House washing: every 6–12 months
- Gutter cleaning: every 6–12 months
- Roof treatment: every 2–3 years
- Concrete & decks: annually
Regular maintenance keeps costs predictable and avoids large repair bills.
Exterior Cleaning vs Repairs – Cost Comparison
| Service | Average Cost | Repair Avoided |
|---|---|---|
| Gutter cleaning | $250–$500 | Ceiling leaks ($2,000+) |
| Roof treatment | $500–$900 | Roof replacement ($15k+) |
| House washing | $400–$700 | Repainting ($8k+) |
Preventative cleaning consistently wins.
How to Get an Accurate Quote in 2026
A proper quote should consider:
- Site inspection or detailed photos
- Property size and layout
- Surface condition
- Safety and access requirements
Avoid pricing based on guesswork alone.
Request a 2026 Exterior Cleaning Quote
If you want transparent pricing based on your property — not generic estimates — a tailored quote is the best next step.
👉 Request a Quote:
https://www.metrowaterblasting.co.nz/
📞 Call anytime:
0800 997 997