Roof Replacement Cost NZ (2026): What a New Roof Costs in Auckland
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Quick answer: a full roof replacement on a standard Auckland home costs $10,000 to $45,000, and most homeowners pay $15,000 to $30,000 for Colorsteel long-run steel at $90 to $180 per square metre installed, including removal of the old roof. Corrugated iron sits lower at $70 to $140 per square metre and concrete tiles higher at $120 to $200. Roof size, pitch and access move the number more than the brand of sheet does.
Roof size is the main driver, so a per-square-metre figure only gets you halfway. Below you’ll find the rate by material, worked totals by roof size, what a quote should and shouldn’t include, how long the job takes, and a fast way to price your own roof.
How much does a new roof cost in NZ?
For a standard Auckland home, a full reroof runs $10,000 to $45,000, and most land between $15,000 and $30,000. The material sets the rate per square metre and the roof sets how many square metres you pay for. These are the installed rates we publish for the three roofs we replace most:
| Roofing material | Installed rate | Where it fits |
|---|---|---|
| Corrugated iron | $70 to $140 per m² | Like-for-like on older villas, bungalows and outbuildings where the classic profile suits the house |
| Colorsteel long-run steel | $90 to $180 per m², including removal and disposal of the old roof | The default Auckland reroof, and the usual replacement for tired iron or pressed-metal tiles |
| Concrete tiles | $120 to $200 per m² | Like-for-like on 1970s and 1980s tiled homes; heavier, so a switch to tiles needs a structural check |
Rates are from our published renovation FAQ. Where a house falls inside each band comes down to the roof’s size, its pitch and how easy it is to get scaffold and a truck to it.
The base rates inside our reroofing calculator
The calculator works from roof area multiplied by a material base rate, then adds for pitch and for stripping the old roof. These are the figures it starts from:
| Factor | Indicative rate |
|---|---|
| Asphalt shingles | from $106 per m² |
| Long-run steel | from $150 per m² |
| Steep or complex roof | around +10% |
| Removing the existing roof | around +25% |
These are indicative figures for planning, not a fixed quote. The steel base rate is before the strip: add the 25% and it lands near the top of the $90 to $180 installed band above, which is where a pitched Auckland roof with scaffold usually sits. The final number depends on your roof’s exact area, its pitch and complexity, the condition of the framing underneath, and the material you choose. If you’re leaning towards steel, our Colorsteel roofing cost guide goes deeper.
Roof replacement cost by roof size in New Zealand
Because the rate is per square metre, the fastest way to sanity-check a quote is to work from your roof area. The figures below are worked straight off the two calculator base rates above, on a normal pitch with the old roof left in place. They are arithmetic, not quotes, and they don’t include scaffolding on a two-storey home or any framing repairs found once the old roof is lifted.
| Roof area | Asphalt shingles | Long-run steel | Steel, old roof stripped (+25%) |
|---|---|---|---|
| 100m² (small home or unit) | about $10,600 | about $15,000 | about $18,750 |
| 150m² (typical 3-bedroom) | about $15,900 | about $22,500 | about $28,100 |
| 200m² (larger family home) | about $21,200 | about $30,000 | about $37,500 |
| 250m² (large or cut-up roof) | about $26,500 | about $37,500 | about $46,900 |
Two things move those numbers fast. A steep or multi-angle roof adds about 10% for the extra time, safety gear and offcuts. And a two-storey home needs scaffold, which is priced on the job rather than per square metre of roof. If your roof is bigger than you think, that’s normal: pitch and eaves overhangs mean roof area routinely runs 20% to 30% above floor area.
The 250m² stripped figure sits just above the $45,000 top of our published range. That’s the honest signal that a large, cut-up roof is where a proper site measure matters most, because small errors in area multiply fast.
What does it cost to reroof a typical home?
Say you’ve got a standard single-storey Auckland home with roughly 150 square metres of roof, going with long-run steel on a normal pitch. That’s about $22,500 for the new roof. If the existing roof needs stripping first, add around 25% and you’re near $28,000. Choose asphalt shingles instead and the base drops to about $15,900.
A steep or cut-up roof with lots of angles pushes it higher again. Enter your roof size, material and pitch into the reroofing cost calculator and it works out your figure in seconds – handy before you start ringing around for quotes.
Metal roof replacement, re-roofing iron and switching from tiles
Most Auckland reroofs are one of three jobs, and each one is priced and consented a little differently.
Replacing corrugated iron with new long-run steel
Old iron to new long-run steel is the most common reroof we price. The sheets come off in sections, the battens or purlins underneath get checked for rot and loose fixings, new underlay goes down, then the new sheets, flashings, ridge and barge capping. Because the new roof is the same kind of product in the same position, it usually sits inside the Building Act’s like-for-like exemption covered further down. The real variables are how much of the timber under the old iron needs replacing, and whether the spouting is worth keeping. If you’re weighing profiles and colours, our guide to what a Colorsteel roof costs goes through the options.
Replacing a tile roof
A tiled roof can be re-laid in new tiles or swapped for steel. Tiles to steel takes weight off the house, but it is not a straight sheet swap. Tile battens are set out for tiles, not for long-run sheets, so the roof usually needs new battens or purlins, and the hips, ridges and valleys are detailed differently. The look of the house changes too, which matters on a character street. Because the new material isn’t comparable to the old one, confirm the consent position with Auckland Council before you commit rather than assuming the like-for-like exemption applies.
Pressed-metal tiles and older cement sheet
Stone-chip pressed-metal tiles from the 1970s and 1980s often reach the point where the chip has gone and the steel underneath is exposed. Replacing them with long-run is a common upgrade. Older cement roofing needs more care: WorkSafe says a home built before 1 January 2000 may contain asbestos, and that asbestos cement was often used in roof sheeting and ridge capping. Test a sample before anyone lifts a sheet. Our asbestos and renovation guide covers what testing and licensed removal involve.
What a new roof price should include (and what sits outside it)
Roofing quotes are notoriously hard to compare because two companies can price very different scopes. Before you weigh one against another, check what each one has actually allowed for.
Normally inside the price:
- Removing and disposing of the old roof, where a strip is part of the job.
- New roofing underlay, flashings, ridge and barge capping.
- Fixings suited to your site, which matters near the coast.
- Access and safety for a single-storey roof, plus site clean-up.
Usually priced separately, or once the roof is off:
- Scaffolding on a two-storey or steep roof.
- Repairs to battens, purlins or framing that only show up on the strip.
- New spouting and downpipes, if the existing ones are past it.
- Skylights, solar brackets, or moving a flue or aerial.
- Asbestos testing and licensed removal on older roofing. WorkSafe notes that asbestos cement was often used in roof sheeting and ridge capping, that homes built before 1 January 2000 may contain asbestos, and that the only way to confirm it is to test a sample. Budget for testing on any roof of that age.
How to compare roofing quotes line by line
Two roofing quotes that are thousands of dollars apart are rarely the same job. Line them up against this list before you decide which one is cheaper:
- Roof area. Is it stated in square metres, and did someone measure it, or was it taken off a floor plan?
- Material, profile and colour. A named product, not “long-run” on its own.
- Underlay and flashings. New, or reusing what’s there?
- Strip and disposal. Included, and priced as its own line.
- Timber repairs. A rate for replacing rotten battens or purlins, so a surprise under the old roof has a known price rather than an open one.
- Scaffold and edge protection. Included, or a separate hire.
- Spouting and downpipes. Replaced, re-used or not mentioned.
- Warranties. The manufacturer’s material warranty and the roofer’s workmanship warranty are two different documents. Ask for both.
Once the job reaches $30,000 including GST, the paperwork stops being optional. Our guide to the $30,000 written-contract rule explains what your builder has to hand over before you sign.
How long does a reroof take, and what happens on site?
A straightforward single-storey reroof is often done in a few days to a week, weather permitting. A two-storey house, a steep roof or a strip that turns up rotten framing adds time. The order of work is much the same on every job:
- Measure, quote and consent check. The roof is measured, the material chosen, and the consent pathway confirmed before a date is booked.
- Access. Scaffold or edge protection goes up, especially on a two-storey home.
- Strip in sections. The old roof comes off a section at a time, so the house is never left open and uncovered overnight.
- Inspect and repair. Battens, purlins and framing are checked once they’re exposed, and anything rotten is replaced before the new roof goes on.
- Underlay, sheets and flashings. New underlay, then the roofing, ridge, barge and any penetrations for flues, vents or skylights.
- Spouting, clean-up and sign-off. New spouting if it’s in the scope, the site cleared, and a final walk-round.
On our jobs one project manager owns the schedule, the materials and the council communication from the strip to sign-off, so you’re not the one chasing the roofer about the weather. A roof that’s open for part of a day also changes your risk while the work is on. Our renovation insurance guide explains what to check with your insurer before work starts.
Long-run steel vs asphalt shingles vs tiles
The two most common reroofing choices in Auckland sit at different price points and suit different homes.
Long-run steel
Long-run steel (including Colorsteel) is the Auckland workhorse – durable, quick to install on straightforward roofs, and well suited to our wind and rain. It’s the higher of the two rates but a long-life option.
Asphalt shingles
Shingles come in lower per square metre and give a different look, often chosen for character homes or steeper roofs where they sit well. They’re a solid mid-range option worth pricing alongside steel.
Concrete and pressed-metal tiles
Plenty of 1970s and 1980s Auckland homes still carry concrete tiles or the pressed-metal, stone-chip tiles of that era. Both can be replaced like for like, and both change the maths if you switch material: going from a light metal roof to heavy concrete tiles adds load the existing framing may not have been designed for, which pulls the job into consent territory. That’s covered below, and it’s worth settling before you fall in love with a different profile.
Signs it’s time to replace the roof rather than repair it
A patch is the right answer more often than roofers admit. These are the ones where a full replacement usually wins:
- You’ve paid for the same leak twice. Repeat repairs in the same area usually mean the substrate or the flashing detail is the problem, not the hole you keep patching.
- Rust at the laps and fixings, not just surface staining. Corrosion working out from the fixing lines is a sheet-life issue.
- Widespread chip loss on pressed-metal tiles, where the bitumen is exposed and going chalky.
- Sagging lines or soft spots underfoot, which point at the framing rather than the cladding.
- Age past the Building Code durability point. Clause B2 of the Building Code requires parts of the building envelope that are moderately difficult to replace, roof cladding among them, to last at least 15 years with only normal maintenance. Well beyond that, a reroof is maintenance catching up rather than an upgrade.
- You’re about to spend money on what’s underneath. New insulation, a new kitchen ceiling or a full interior repaint all argue for sorting the roof first.
Do you need a building consent to replace a roof?
Often not, but it hinges on whether the new roof is comparable to the old one. Schedule 1 of the Building Act exempts replacement of a component with a comparable component in the same position. MBIE’s guidance uses roofing as its worked example: replacing 20-year-old profiled metal roof cladding with comparable profiled metal roofing sits inside the exemption.
Where it tips the other way:
- Changing to a heavier material. MBIE’s counter-example is corrugated iron swapped for concrete tiles, where the added load is likely to affect the building’s structural behaviour. That needs consent.
- Structural work. Substantial replacement of components contributing to structural behaviour or fire safety is outside the exemption.
- A durability or weathertightness failure. The exemption doesn’t cover replacing something that failed to meet the Building Code, including external moisture requirements.
Consenting and Restricted Building Work calls belong with your council or a Licensed Building Practitioner, not a blog. Auckland Council is the consenting authority here, and we confirm the pathway with them as part of the project so you’re not guessing.
Should you reroof, or reroof and reclad together?
If your home is due for both, doing them together can save on scaffolding and disruption, since the same access serves both jobs. It’s common on older homes where the roof and cladding have aged at the same rate. If that’s you, it’s worth reading our Auckland home renovation guide to plan the sequence. Monolithic-clad homes are the obvious case, and our monolithic cladding guide covers how to tell whether the walls need attention at the same time as the roof.
On the cost side, our recladding cost guide sets out what the cladding half runs to, and you can see how we reclad and reroof in the same programme rather than paying for access twice.
What drives your reroofing cost
- Roof area – the biggest factor, and larger than your floor area.
- Material – long-run steel sits above asphalt shingles per square metre.
- Pitch and complexity – steep, multi-angle roofs take longer and cost more.
- Removing the old roof – stripping and disposing of the existing roof adds to the total.
- Access – scaffold on a two-storey home, or a tight site with no truck access.
- Underlying repairs – damaged battens, purlins or framing found during the strip.
A new roof protects everything under it, so it’s worth getting right. Start with the reroofing cost calculator for an instant estimate, see local context in our reroofing costs in Auckland guide, then request a free feasibility report for a measured quote from the Superior Renovations team.
➡ Book your free in-home consultation with Superior Renovations
➡ Price your reroof with the reroofing cost calculator
➡ Request a free feasibility report for your project
How much does it cost to replace a roof in NZ?
A full reroof on a standard Auckland home runs $10,000 to $45,000, and most homeowners pay $15,000 to $30,000 for Colorsteel long-run steel at $90 to $180 per square metre installed, including removal of the old roof. Corrugated iron sits lower at $70 to $140 per square metre and concrete tiles higher at $120 to $200. Roof size, pitch and access move the figure the most, and scaffold on a two-storey home is usually a separate line.
How much does a new roof cost in Auckland?
A standard single-storey Auckland home with around 150 square metres of roof in long-run steel is roughly $22,500 on a normal pitch, or near $28,000 if the old roof needs removing first. Asphalt shingles on the same roof come in around $15,900. Our calculator gives you a figure based on your actual roof.
What does a new roof cost for a 150m2 house?
Worked off our indicative rates, a 150 square metre roof on a normal pitch is about $15,900 in asphalt shingles or about $22,500 in long-run steel, before removing the old roof. Add roughly 25% for a strip and disposal, which takes the steel option to about $28,100. Scaffolding on a two-storey home and any framing repairs found during the strip are priced separately.
Is long-run steel or asphalt shingle cheaper?
Asphalt shingles are lower per square metre than long-run steel. Steel costs more but is durable, quick to install on straightforward roofs, and well suited to Auckland conditions. Both are worth pricing so you can weigh cost against look and longevity.
Can I replace a tile roof with long-run steel?
Yes, and it takes weight off the house, but it is not a straight sheet swap. Tile battens are set out for tiles, so the roof usually needs new battens or purlins, and hips, ridges and valleys are detailed differently. Because steel is not comparable to the tiles it replaces, confirm the consent position with Auckland Council before committing rather than assuming the like-for-like exemption applies.
Why does removing the old roof cost extra?
Stripping the existing roof means labour to remove it, disposal of the old material, and time to inspect and repair any damaged battens or framing underneath before the new roof goes on. In our calculator that adds around 25% to the base cost.
Does a steep roof cost more to replace?
Yes. Steep and complex roofs with multiple angles take longer, need more safety measures, and use more material for the same footprint. Our calculator adds around 10% for a steep or complex roof compared with a flat or normal pitch.
How long does a reroof take?
A straightforward single-storey reroof is often done in a few days to a week, weather permitting. A larger or steeper roof, or one needing framing repairs after the strip, takes longer. Your project manager gives you a realistic timeline before work starts.
Do I need consent to reroof my house?
Replacing roof cladding with a comparable product in the same position is exempt under Schedule 1 of the Building Act, and MBIE uses profiled metal replaced with profiled metal as its example. Consent is needed if you change to a heavier material such as concrete tiles, if the work affects structural behaviour, or if the existing roof failed the Building Code for durability or external moisture. Auckland Council confirms the pathway, and a Licensed Building Practitioner should make the call on any Restricted Building Work.
How do I know whether to repair or replace my roof?
Repeat leaks in the same spot, rust spreading from the laps and fixings, widespread chip loss on pressed-metal tiles, or sagging and soft spots underfoot all point at replacement rather than another patch. Roof cladding is expected to last at least 15 years under the Building Code, so well past that a reroof is simply maintenance catching up.
Is asbestos a risk when we strip the old roof?
It can be on older roofs. WorkSafe says homes built before 1 January 2000 may contain asbestos, that asbestos cement was often used in roof sheeting and ridge capping, and that the only way to confirm it is to test a sample. On a roof of that age, allow for testing before the strip, and licensed removal if it comes back positive. It is not a DIY job.
What is the best time of year to replace a roof?
Roofs get replaced year-round in Auckland, but late spring through summer gives the driest run of weather and the least risk of an open roof catching rain mid-job. Winter is doable - crews stage the work and cover nightly - but wet spells can add days. Booking a few weeks ahead lets you pick a drier window.
Further Resources for your reroofing project
- Featured projects and Client stories to see specifications on some of the projects.
- Real client stories from Auckland
Need more information?
Take advantage of our FREE Complete Home Renovation Guide (48 pages), whether you’re already renovating or in the process of deciding to renovate, it’s not an easy process, this guide which includes a free 100+ point check list – will help you avoid costly mistakes.
Download Free Renovation Guide (PDF)
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