Reroofing cost in NZ (2026)

Updated 10 November 2026. Prices are published NZ figures, linked to their source. Your tradie quotes after seeing the job.

A full reroof in NZ typically costs $90 to $200 per m2 installed for steel, which works out at about $15,000 to $30,000 for a standard house. Superior Renovations (2026) gives $90 to $180 per m2 for Colorsteel long-run. Check My Builder (July 2026) gives $120 to $200 per m2, excluding GST. Tile costs more, and asbestos adds a lot.

The quick answer

Both are commercial sources, not independent price data. Treat the ranges as a guide. They do not agree on every row, and we show both where they differ.

Roof repairs are harder to price. Endeavour Property Services (August 2024) says repairs can cost “a fraction” of a reroof but prints no figure. Superior Renovations says repair work such as timber or batten replacement is priced separately and gives no number. We have not found a sourced NZ price for a typical repair, so ask for a written quote.

What changes the price

• Roof area. Everything is priced per m2, so a 200 m2 roof costs about a third more than a 150 m2 one. Superior Renovations’ calculator shows steel at about $15,000 for 100 m2, $22,500 for 150 m2, $30,000 for 200 m2 and $37,500 for 250 m2.
• Material. Steel is usually the cheapest of the lasting options. Tile and pressed metal tile cost more per m2, and slate or copper is $350 to $800 or more per m2 (Check My Builder, excluding GST).
• Removing the old roof. Superior Renovations adds about 25 percent when the existing roof has to be stripped. Its 150 m2 steel figure goes from about $22,500 to about $28,100 with stripping.
• Pitch and complexity. Superior Renovations adds around 10 percent for steep or complex roofs. Check My Builder adds 20 to 40 percent for complexity.
• Region. Check My Builder gives per m2 averages of $230 for Auckland, $220 for Wellington, $210 for Tauranga, $190 for Christchurch and Hamilton, and $180 for regional NZ.
• Scaffolding and edge protection. Check My Builder lists scaffolding at $5,000 to $25,000 as an add-on cost. Ask whether it is in your quote.
• Asbestos. Check My Builder gives +$3,000 to $15,000 for asbestos removal. Endeavour Property Services says asbestos removal is not in its estimates.
• Rotten timber. Anything found under the old roof is usually charged on top, so ask how it will be priced before work starts.
• GST. Superior Renovations and Endeavour do not say whether their figures include GST. Check My Builder says its figures exclude GST. Add 15 percent to those.

A worked example

Using the figures above, take a 150 m2 roof on a single-storey house.

• Superior Renovations’ steel rate of $90 to $180 per m2 gives 150 x $90 = $13,500 to 150 x $180 = $27,000.
• Check My Builder’s rate of $120 to $200 per m2 gives 150 x $120 = $18,000 to 150 x $200 = $30,000, before GST.
• Add 15 percent GST to the Check My Builder figures: $20,700 to $34,500.
• Superior Renovations’ calculator shows about $22,500 for the same roof, or about $28,100 if the old roof is stripped.

So a quote between $13,500 and $34,500 is inside the published range for this roof. A tile roof would sit higher. Concrete tile at Superior Renovations’ $120 to $200 per m2 gives 150 x $120 = $18,000 to 150 x $200 = $30,000. A quote outside the range is not wrong, but ask the roofer to explain why.

A repaint on a sound 150 m2 roof is $2,000 to $7,000 (Superior Renovations), which is the main alternative if the roof is not yet leaking or rusted through.

Rules, licences and consents

Building consent. Many reroofs don’t need one. The MBIE exemptions guidance (sixth edition, version 2, January 2026) explains exemption 1 of Schedule 1: replacing a building product with a comparable one in the same position. Its own examples: replacing a 20-year-old profiled metal roof with profiled metal roofing is exempt, and so is replacing an old clay tile roof with longrun or pressed metal tiles in the same position (the guide notes the lighter roof means uplift and fixings must still be designed for). The exemption does not cover cladding that failed its Building Code durability period, for example a roof that failed within 15 years, or a complete or substantial replacement of structural parts. MBIE says that if you are not sure, ask your council for a discretionary exemption or apply for a consent rather than guess.

Restricted building work. Whangarei District Council explains that restricted building work is residential work that needs a building consent and covers weathertightness, which includes wall and roof cladding systems. A Licensed Building Practitioner must carry it out or supervise it. If your reroof needs a consent, ask for the practitioner’s licence number and check it on the LBP public register at lbp.govt.nz. Even when a job is exempt, the MBIE guide says it is sensible to check the register.

Written contract. MBIE says a contractor must give you a written contract for residential building work costing $30,000 or more including GST, and a disclosure statement and checklist before you sign. A large reroof can reach that line.

Asbestos. WorkSafe says homes built before 1 January 2000 may contain asbestos. It names roof sheeting and ridge capping, and also gutters, downpipes and eaves, as places asbestos cement was used. Asbestos cement looks the same as cement without it, and the only way to confirm is a sample taken by a reputable contractor. Non-friable (bonded) asbestos is less likely to release fibres unless it is disturbed or deteriorating, and cutting, drilling or water blasting disturbs it. WorkSafe says removalists may need a WorkSafe licence depending on the work, and you can check the licence holder register on its website.

Working at height. WorkSafe has guidance on working on roofs, including edge protection and preventing falls through the roof when recladding. WorkSafe says that guidance has not been updated for the Health and Safety at Work Act 2015 and is under review (page last updated 23 August 2017). Ask the roofer how they will protect against falls.

Questions to ask before you say yes

• Are you or your site supervisor a Licensed Building Practitioner, and what is the licence number?
• Is a building consent needed, and who applies for it?
• Does the price include removing the old roof, flashings, gutters and rubbish?
• Has the roof been tested for asbestos, and who is licensed to remove it if it is found?
• How is rotten timber charged once the old roof is off?
• Is scaffolding or edge protection in the price?
• Is GST included in this figure?
• What warranty do I get on the workmanship and on the roofing material?

How GoodTradie helps

GoodTradie is a free service for homeowners. You type the job in, we call you, and we find one local tradie for it. For roofing we check the tradie’s Licensed Building Practitioner status on the public register, book them, and compare their quote against published NZ figures like the ones above. We do not send your job to several tradies, and we are paid by the professionals we match you with. The price check is a guide, not a guarantee. Type your job into the box at the top of this page to start.

Sources

• Superior Renovations, reroofing cost calculator (2026, last updated 31 October 2026)
• Check My Builder, roof replacement NZ cost guide (July 2026)
• Endeavour Property Services, NZ roof replacement costs (August 2024)
• OneRoof, NZ roof replacement costs revealed (2024)
• WorkSafe, Asbestos in the home (information for homeowners)
• WorkSafe, Roofs: working safely on (last updated 23 August 2017)
• MBIE, Building work that does not require a building consent, sixth edition v2, January 2026
• Whangarei District Council, Restricted Building Work
• MBIE, Do your homework: contractors and homeowners (November 2025)

Need a roofer? See how we find and check one, or type the job in the box at the top.