Get a roofer to look as well as a painter. A roofer can tell you if the sheets have years left in them 1.
Is it cheaper to recoat or re-roof?
The published 2026 figures:
| Recoat | Re-roof (long-run) | |
|---|---|---|
| Per m² | $25–$45 [[att]] | $130–$180 incl. GST [[sol_cost]] |
| 3-bedroom home | $3,000–$5,500 [[att]] | $18,000–$30,000 [[sol_cost]] |
| Suits | Sound roof, faded or surface rust | Rust-through, failed underlay, recurring leaks |
When is a roof too far gone to paint?
When rust has holed the sheets, the fixings are badly corroded, bits are sagging or the leaks won't stop. Then it needs replacing, not painting 1.
Frequently asked questions
How long does a roof recoat last?
Standard acrylic roof paint lasts about 7–12 years and high-build membrane systems 12–15, according to one 2026 NZ guide 1.
Sources
- Automate The Trades — Roof painting cost NZ (2026 guide), updated 11 July 2026 (accessed 26 Oct 2026)
- Solution Roofing — How much does a roof replacement cost in New Zealand? (2026 guide) (accessed 26 Oct 2026)
Prices are published planning ranges, not quotes. See our editorial policy.