How often should you repaint your house in NZ?

The short answer

What	Repaint every
Exterior — sheltered suburb	8–10 years
Exterior — coastal (salt air)	5–7 years
Exterior — west-facing / exposed	5–8 years
Interior	7–10 years
Roof (metal)	8–12 years
Roof (concrete tile)	10–15 years

Why NZ weather makes repainting different

New Zealand's sun is harsher than people expect — the UV index regularly hits extreme levels in summer. That breaks down paint film faster than in cooler climates. Add Auckland's humidity, salt air near the coast, and the north-west wind and rain, and you've got a tough environment for exterior paint.

That's why "10-year paint" in the UK is more like a 7-year paint here. Quality paint and proper prep stretch the life — cheap paint and skipped prep cut it short.

Signs your exterior needs repainting

• Cracking or alligatoring — the paint surface looks like lizard skin. This is advanced failure; don't wait longer.
• Peeling or flaking — especially around joints, eaves, and anywhere moisture gets behind the film.
• Chalking — rub your hand on the wall; if you get a chalky residue, the paint is degrading.
• Blistering — bubbles under the paint, usually moisture-related.
• Faded or patchy colour — especially on north and west-facing walls.
• Mould or mildew growth — can mean moisture is sitting in the substrate.

One sign alone isn't always a full repaint trigger — but if you're seeing three or more of these, it's time to get a quote before the weatherboard itself gets damaged.

Signs your interior needs repainting

• Walls you can't clean anymore (stains, grease, kids' artwork residue)
• Faded or yellowed paint, especially around windows and doors
• Hairline cracks in plaster or gib walls
• You're selling and want to lift the value
• You simply want a change — the most common reason, and completely valid

What shortens paint life (and how to avoid it)

• Skipping prep — painting over dirt, chalk, or failing paint guarantees early failure.
• Cheap paint — budget brands break down faster in NZ UV. Resene and Dulux cost more and last years longer.
• One coat instead of two — the second coat is what gives the film thickness to survive.
• Painting in the wrong conditions — painting in rain, high humidity, or extreme heat traps moisture or makes paint dry too fast.
• Coastal exposure — salt air corrodes the film faster. Nothing you can do about location, but you can use marine-grade quality paint.

Does a repaint add value?

Usually yes. A clean, well-painted exterior is the first thing buyers see, and interior repaints are the cheapest high-impact renovation. That said, a repaint won't fix structural issues — get those sorted first, then paint.

How much should you budget?

See our full breakdown: house painting costs in Auckland (2026 guide). In short, most 3-bedroom Auckland homes land between $8,000 and $13,500 for a proper exterior repaint with real prep.

When in doubt, get eyes on it

A free site visit from a painter can tell you exactly what state your paint is in — no obligation. If it's borderline, we'll tell you honestly whether it's worth painting now or waiting a year or two.