Wellington's Climate Challenges
Wellington is officially the windiest city in New Zealand, with average wind speeds of 29 km/h and gusts regularly exceeding 100 km/h. This constant wind-driven rain attacks exterior surfaces from unusual angles, finding gaps that calmer climates never test.
Coastal suburbs — Seatoun, Lyall Bay, Island Bay, Kapiti Coast — face additional salt-air corrosion. Salt accelerates paint chalking, metal corrosion, and timber degradation. UV exposure is also higher than the national average due to our latitude and clear-sky days.
These factors mean standard interior-grade or economy exterior paints fail prematurely here. Wellington homes need purpose-built, high-performance coatings designed for marine or alpine conditions.
Top Recommended Exterior Paints
Resene Lumbersider remains the gold standard for timber weatherboards in Wellington. Its waterborne acrylic formulation resists UV degradation, salt corrosion, and mould growth. Available in 30+ standard colours with a 15-year durability statement when applied over properly prepared surfaces.
Dulux Weathershield is equally capable, with superior flexibility for timber that expands and contracts with humidity changes. Its Dirt Resistance Technology keeps lighter colours cleaner longer — valuable in exposed coastal positions where salt film accumulates.
For concrete, stucco, and plastered surfaces, Resene X-200 is specifically formulated for porous substrates. It bridges hairline cracks and provides waterproofing while allowing the substrate to breathe. Essential for Wellington's older plaster homes.
Roof painting demands specialist products. Resene Summit Roof or Dulux AcraTex Roofing Membrane are designed for pitched metal and tile roofs. Standard exterior paint on roofs fails within 2–3 years in Wellington conditions.
Interior Paint for Wellington Homes
While exterior paint battles the elements, interior paint in Wellington faces condensation and mould risk. Our combination of high humidity, cool southerlies, and poor ventilation in older homes creates perfect mould conditions.
Resene SpaceCote Low Sheen with MoulDefender is our standard recommendation for bathrooms, kitchens, and south-facing bedrooms. The anti-mould additive is built into the paint film, not just a surface treatment.
For living areas, Resene Zylone Sheen or Dulux Wash&Wear provide excellent washability — essential for homes with children or pets. These eggshell/sheen finishes resist scuffing and wipe clean without leaving marks.
In heritage properties, breathable paints are crucial. Modern acrylics can trap moisture in 100-year-old timber and plaster. We specify Resene Limelock or natural limewashes for pre-1940 homes, allowing walls to breathe while providing colour protection.
Application Tips for Maximum Durability
Paint performance depends as much on application as on product. In Wellington, timing matters — exterior painting should happen when temperatures are consistently above 10°C and relative humidity below 85%. Spring (October–November) and early autumn (March–April) offer the best windows.
Surface preparation is non-negotiable. All loose paint must be removed, bare timber primed with penetrating oil or waterborne primer, and cracks filled with flexible exterior filler. We spend 60% of project time on prep — it determines the 10-year outcome.
Two full coats are essential. Single-coat coverage looks acceptable initially but fails at edges and high-wear areas within 18 months. We never quote single-coat exterior work, regardless of budget pressure.
For colour selection, mid-tones perform best in Wellington's harsh light. Very dark colours absorb more heat (causing expansion/contraction stress), while very light whites show dirt and salt film quickly. Earth tones — sage, slate, warm grey — are practical and stylish.