What's different about re-roofing in Johnsonville?
Johnsonville is 7 km north of the city at the top of the Ngauranga Gorge, on the main road to Porirua 1. It was settled from 1841, took off once the railway arrived in 1886, became its own town district in 1908 and joined Wellington City in 1953 1. So you get everything from railway-era houses to big post-war and modern subdivisions. Roofs run from original corrugate to pressed-metal tile and long-run. Most streets are rolling with decent truck access, but some newer hillside sections get a lot of wind.
What that means for your roof
Asbestos check first
Johnsonville has a big stock of mid-century houses, so plenty were built before 2000. WorkSafe says a home built before 2000 may contain asbestos materials 2. Some older decramastic tiles and asbestos-cement roofing can have it 3, and anything over 10 m² has to come off with a licensed removalist 4. Get it tested before anyone starts stripping. It's cheap next to a surprise halfway through the job. See asbestos roof replacement.
Coastal exposure
Most of the suburb is well back from the sea. COLORSTEEL®'s Mild category usually starts about 5 km from exposed coast, or more than 1 km from calm saltwater 5. That tends to open up more product options. Still get the roofer to confirm the category for your address.
Wind
Up on the hills and ridges you can land in the higher NZS 3604 wind zones. Very High is a 50 m/s design wind speed and Extra High is 55 m/s 6. The zone's worked out site by site 7, and it sets the fixing pattern for a metal roof 8.
Consent
If your roof's more than 15 years old and you're swapping it for something comparable, you generally won't need building consent 9. Going from tile to profiled metal in the same spot is one of MBIE's own examples of exempt work 10.
Roof replacement cost in Johnsonville
Going by published 2026 NZ guides, a 3-bedroom re-roof runs about $18,000–$30,000 and a 4-bedroom about $25,000–$42,000 incl. GST 11. Access, pitch, scaffold and taking the old roof away are what shift it 12. Try the estimator.
Getting quotes in Johnsonville
Tell me about your roof and I'll line you up with a local roofer. They'll come and look at it and give you an itemised quote. It costs you nothing and you're not locked in. Start your quote →
Nearby: Khandallah · Tawa · All of Wellington City
Frequently asked questions
Do I need a special roof product in Johnsonville?
Most of the suburb is well back from the sea. Get your roofer to confirm the category for your address.
Could my Johnsonville roof contain asbestos?
Johnsonville has a big stock of mid-century houses, so plenty were built before 2000. WorkSafe says a home built before 2000 may contain asbestos 2. Only a test of a sample will tell you for sure.
Sources
- Wikipedia — Johnsonville, Wellington (accessed 26 Oct 2026)
- WorkSafe — Asbestos in the home (accessed 26 Oct 2026)
- PropertyHelp — How much does asbestos removal cost in NZ? (2026 price guide, Sept 2026) (accessed 26 Oct 2026)
- WorkSafe — Non-friable asbestos removal: safe work practices (accessed 26 Oct 2026)
- COLORSTEEL® — Environmental categories & warranty guide (PDF) (accessed 26 Oct 2026)
- MBIE — E2 External Moisture Acceptable Solution, amendment 5 (wind zone speeds) (accessed 26 Oct 2026)
- BRANZ Level — Analysing wind impact on a building site (accessed 26 Oct 2026)
- NZ Metal Roofing Manufacturers — Code of Practice: fastening pattern tables (NZS 3604) (accessed 26 Oct 2026)
- MBIE Building Performance — Recladding roofs (building consent requirements clarified) (accessed 26 Oct 2026)
- MBIE Building Performance — Schedule 1, exemption 1: general repair, maintenance and replacement (accessed 26 Oct 2026)
- Solution Roofing — How much does a roof replacement cost in New Zealand? (2026 guide) (accessed 26 Oct 2026)
- Calk NZ — Roofing calculator (2026 indicative costs) (accessed 26 Oct 2026)
Prices are published planning ranges, not quotes. See our editorial policy.