Roof Painting Khandallah Wellington

Khandallah sits up high above the city, and that height shows on its roofs. Victorian and Edwardian homes with original iron rooflines sit alongside Californian bungalows, all of them catching more wind than the suburbs below. Heritage iron that's been on these houses for 80 or 100 years needs careful handling, not just a wash and a coat of paint. Get it right and you protect the roof for another decade. Get it wrong and you're dealing with rust failure inside two years.

Why Choose Our Roof Painting Service

Heritage Iron Roof Expertise

Old corrugated iron is not a forgiving substrate. Any rust that isn't fully treated before painting will keep spreading under the new coating. We mechanically remove loose rust, treat the residual surface rust with a rust converter, and apply a high-adhesion rust-inhibiting primer before any topcoat goes on. The number of coats and the choice of topcoat system depends on the actual condition we find. We assess each roof on its own rather than applying one standard package to every job.

Wind-Exposure Surface Preparation

Up here the wind drives rain into any gap in the coating. Flashings, ridge caps, and the edges of iron sheets are the first places paint lifts on exposed roofs. We pay close attention to these junctions, cleaning them thoroughly, repointing or resealing where needed, and priming before topcoats. The finish coat is only as good as what's underneath it.

Californian Bungalow Rooflines

Many homes in Khandallah have the broad, low-pitched rooflines typical of the Californian bungalow style. These designs hold water longer than steeper pitches and often have wider eaves that shade sections of the roof from drying out. We factor in drainage patterns and shaded areas when picking coating systems, choosing products with stronger mould and mildew resistance where the roof dries slowly.

Our Roof Painting Process

Every job follows the same steps:

• Detailed inspection: document rust patches, failed caulk, lifting flashings, and any damaged sheets
• High-pressure wash: remove all moss, lichen, dirt, and loose paint from the full roof surface
• Rust treatment: mechanical removal of loose rust, chemical treatment of surface rust, spot priming of all bare metal
• Flashing and ridge work: repoint or reseal all junctions before coating
• Full prime coat: rust-inhibiting primer applied across the whole roof surface
• Two topcoats: applied to specification with enough dry time between coats

We use Resene roof coating systems suited to heritage iron substrates. We schedule around weather windows. No coating goes on in damp conditions or with rain forecast within 24 hours. More information on our roof painting service page.

What's Included

• Full roof wash and preparation
• Rust treatment, mechanical removal and chemical conversion
• Spot priming of all bare or corroded areas
• Full prime coat across roof surface
• Two coats of premium roof coating
• Ridge cap repointing or resealing
• Flashing treatment
• Registered Master Painters workmanship guarantee

Cost Guide

Roof painting costs in Khandallah depend on roof area, pitch, and how much rust or surface damage there is. As a guide:

• Small roof (under 120m²): $3,500 to $6,000
• Medium roof (120–200m²): $6,000 to $10,000
• Large roof (200m²+): $10,000 to $18,000

Heritage iron roofs with heavy rust usually need more preparation time and material, sitting toward the upper range. We assess on-site and give you a firm written quote before any work starts.

FAQs

How long does a roof paint job last on an old iron roof?

With proper rust treatment and preparation, a good roof paint system on heritage iron should last 10 to 15 years. Roofs that sit high and face south or west weather faster than sheltered aspects. Regular inspection and a wash-down every few years extends the cycle.

Is it worth painting an old iron roof or should I replace it?

That depends on the structural condition of the iron. If the sheets are sound, with no holes and no heavy through-corrosion, painting is good value and well worth doing. We'll give you an honest assessment during the quote. If replacement is the better call, we'll say so.

Do you handle the ridge cap repointing?

Yes. Ridge cap mortar or sealant is one of the first things to fail on older roofs. We include repointing or resealing as part of the job. Painting over failed ridge caps just traps moisture.

Can you work around our schedule?

Yes. We plan the job around weather windows and give you notice before we start each phase. Roof work can't go ahead in wet conditions, so we build flexibility into the schedule rather than rushing in unsuitable weather.

Areas We Cover

As well as Khandallah, we service surrounding suburbs including Johnsonville, Ngaio, Cashmere, Broadmeadows, and across the wider Wellington region.

Get a Free Quote

Call us on 0800 003 728 or use the form below. We'll inspect your roof in person, check the extent of any rust or surface damage, and give you a written price with no obligation.