In 2026 the typical price to resurface or overlay an existing concrete driveway or patio in New Zealand runs between $40 and $70 per square metre. By contrast, a full concrete replacement generally costs $100‑$150 per square metre. These ranges set the baseline for budgeting whether you’re refreshing a worn surface or considering a complete rebuild.
Cost Breakdown by Project Size
| Size (m²) |
|---|
| Resurfacing $/m² |
| --- |
| --- |
| Small (≈20) |
| $55 |
| Medium (≈40) |
| $55 |
| Large (≈80) |
| $55 |
All figures fall within the $40‑$70/m² resurfacing band and the $100‑$150/m² replacement band. The per‑metre rates assume a standard single‑coat polymer overlay; additional colour or anti‑slip additives may shift the numbers toward the top of the range.
Factors That Raise or Lower the Price
The base rate can swing based on several NZ‑specific variables:
- Surface condition – Minor surface cracking or light staining keeps costs at the low end. Extensive structural cracking often forces a full replacement, pushing the price into the $100‑$150/m² bracket.
- Preparation work – Grinding, cleaning and repairing joints add labour time. A driveway with oil stains or moss may need power‑washing, adding $5‑$10/m².
- Finish choice – Standard gray polymer is cheapest. Custom colours, stamped patterns or embedded aggregates can add $10‑$20/m².
- Access and site logistics – Tight access, steep slopes or the need for traffic control (required under the Road Traffic Act) increase labour rates.
- Regulatory compliance – If the work is part of a larger renovation, a building consent may be needed under the Building Act, adding consent fees of $150‑$300.
DIY Viability vs Professional Installation
Resurfacing a concrete slab is technically achievable for a competent DIYer with the right equipment (grinder, squeegee, roller). However, NZ regulations require that any work affecting structural integrity—such as repairing deep cracks—must be carried out by a licensed builder under a building consent. Even when a consent isn’t required, professional installers bring expertise in surface preparation, which is critical for adhesion and longevity. Homeowners should also consider WorkSafe’s health‑and‑safety guidelines for dust control and manual handling.
Regional Price Variations Across New Zealand
While the $40‑$70/m² range is national, regional factors can shift the actual invoice:
- Auckland and Wellington – Higher labour rates and transport costs can add $5‑$10/m².
- Canterbury and Otago – Seasonal demand for outdoor works may see modest price spikes in summer.
- Northland and the West Coast – Lower population density can reduce competition, sometimes keeping prices at the lower end of the band.
- Rural properties – Longer travel distances for tradespeople may incur a travel surcharge of $50‑$100 per job.
Adjusting for these factors ensures a realistic budget that reflects local market conditions.