Exterior House Painting Ngaio Wellington

Ngaio is one of the quietest suburbs in Wellington, sheltered from the prevailing winds by the bush-clad valley it sits in. That calm setting is part of its appeal, but it creates its own painting problems. Less wind means more retained moisture, more shade on lower and north-facing walls, and bush nearby that keeps surfaces damp for longer than exposed suburbs. For the weatherboard homes built here in the 1960s and 1970s, that combination speeds up mould growth and paint breakdown in predictable ways.

Why Ngaio Homeowners Choose Our Exterior Painting

Treating the Damp and Mould Problem Properly

Shaded walls that hold moisture are where mould takes hold. We apply a biocide wash before any prep work starts, treating mould at the surface and at the source rather than just scrubbing it clean. Painting over leftover mould is one of the most common reasons a repaint fails inside three years. It is a step that adds time, but it takes a future problem off the list.

Prep That Matches the Age of the Housing Stock

The 1960s and 1970s weatherboard homes around here have had multiple paint cycles layered onto them over the decades. That history matters when you are prepping for a new coat. We check inter-coat adhesion, sand back wherever there is build-up or flaking, fill gaps and joints, and prime bare timber properly. The aim is a surface that is genuinely ready to hold paint, not one that looks ready until the first wet winter arrives.

The Right Products for a Shaded, Moisture-Rich Environment

We use Resene exterior coatings on all our work, products made for New Zealand conditions with strong mould resistance. In a sheltered, shaded setting like this, mould resistance in the topcoat is not optional. It is the difference between a finish that holds for 10 years and one that starts looking green and tired by year four.

Our Exterior Painting Process

1. Free on-site quote. We inspect cladding condition, existing paint state, mould presence, and moisture-affected areas before pricing.
2. Biocide wash and high-pressure clean. Mould and algae are treated and removed before prep work begins.
3. Surface preparation. Sanding, scraping, gap filling, and priming bare or weathered sections.
4. Masking and site protection. Windows, trims, and garden areas fully protected before painting starts.
5. Two-coat topcoat application. Applied to manufacturer specification for correct build, coverage, and mould resistance.
6. Final walk-around. Inspection with you on completion. Touch-ups done before we leave.

What Our Service Includes

• Full exterior repaint, walls, trims, fascias, soffits
• Biocide treatment and high-pressure wash
• Surface preparation including gap filling and priming
• Resene exterior paint products
• Colour consultation and sample testing
• Site clean-up and waste removal
• Workmanship guarantee

Cost Guide

Pricing depends on house size, prep requirements, and how much mould or moisture work is needed. Shaded walls with significant paint failure need more prep time and cost more accordingly. As a guide:

• Small home (under 120m²): $8,000–$15,000
• Medium home (120–200m²): $15,000–$25,000
• Large home (200m²+): $25,000–$45,000

All quotes are fixed price. The number you get after our site visit is what you pay. No variations mid-job unless you ask for extra scope.

FAQs

My home is heavily shaded. Does that affect how long paint lasts?
Yes, quite a bit. Shaded surfaces hold moisture longer, which speeds up mould growth and can cause paint to fail well before the end of its expected life. The right primer and mould-resistant topcoat, applied to a properly treated surface, largely offsets this. We factor exposure and shade into every quote.

How do you treat mould before painting?
We apply a biocide wash that kills mould at the biological level, not just the visible surface staining. Then a high-pressure clean. Painting over leftover mould spores, even ones that look clean, seals them in and they reactivate once moisture returns.

How long does an exterior repaint take in Ngaio?
Most homes here take 3 to 6 days. Those needing heavy mould treatment or extensive prep work may run a day or two longer. We give you a specific timeframe with your quote.

Do you provide a guarantee?
Yes. Our workmanship is guaranteed. If something is not right after we have finished, we come back and fix it. As Registered Master Painters, that guarantee is backed by the trade association.

Areas We Cover

We paint regularly in this area and across the surrounding suburbs including Khandallah, Crofton Downs, Wadestown, Karori, and Wilton. Same quality, same team, same process wherever we work.

Get a Free Quote

If your home is overdue for a repaint, or you have noticed mould, peeling, or damp patches, get in touch for a free on-site assessment. We will give you an honest picture of what needs doing and a fixed price before any work starts.