How much does a new roof or re-roof cost in Australia?

A roof is one of the biggest single jobs a home will ever need, and "how much does a new roof cost?" almost never has one answer. It's a range that depends on material, pitch, height, and what's hiding under the old cladding. This guide gives you honest 2026 per-m² rates for the common roofing jobs, then explains the hidden-batten caveat that makes a re-roof a range rather than a fixed price.

All figures are estimates for Australian residential work, GST inclusive.

Roofing cost per m² by job

| Job | Installed cost | Notes | | --- | --- | --- | | Colorbond re-roof | $90-$150/m² | Corrugated cheapest; Kliplok/standing-seam dearer | | Tile re-roof | $80-$120/m² | Depends on tile and access | | Roof restoration (tile) | $40-$65/m² | Clean, repair, re-coat a sound roof | | Guttering (supply + install) | $40-$100/lm | More for two-storey or fascia work |

These bands reflect current Australian guides putting Colorbond re-roofing broadly $90-$150/m², tile restoration $40-$65/m², and guttering $40-$100/lm (Metro Roof, TradieVerify, Innovate Roofing, Five Star Roofing).

What actually drives the price

• Pitch. A steep roof is slower and more dangerous to work on, with more harnessing, more care and more time, so it costs more per m² than a low-pitch roof of the same area.
• Storeys and access. A single-storey home is straightforward; a two-storey or split-level needs scaffolding, edge protection and sometimes a crane to lift materials, all of which add cost.
• Removal and disposal. Stripping the old roof and carting it away is a real, separate cost, more for heavy tiles than light metal, and more again if asbestos cement sheeting is involved (which must be removed by a licensed remover).
• The hidden structure. Battens, sarking and rafters only reveal their condition once the cladding is off. Rotten or rusted battens, or non-compliant timber, get priced as a variation, which is exactly why a re-roof is a range.
• Guttering and fascia. Often bundled with a re-roof because the access is already there; new gutters and fascia can add several thousand dollars.

A worked example

Say you're re-roofing a 180 m² single-storey home from old tiles to corrugated Colorbond, including new guttering.

| Line item | Estimate | | --- | --- | | Remove + dispose old tile roof | $3,000 | | Colorbond corrugated (~180 m² @ ~$95/m²) | $17,000 | | New guttering (~60 lm) | $3,500 | | Sarking + minor batten replacement | $1,500 | | Total (inc GST) | ≈ $25,000 |

That sits in the typical range for an average home. A steeper or two-storey roof, premium profile (Kliplok, standing seam), or significant rotten battens found on stripping would push it higher; a smaller, low-pitch roof keeping its existing gutters would land lower. A restoration of a sound tile roof instead of a re-roof would be a fraction of this.

How prices vary across Australia

Roofing material is fairly consistent nationally, so the regional swing is mostly labour and access, dearer in Sydney and Melbourne, cheaper in Brisbane, Perth and Adelaide, and variable in regional areas with travel. Coastal and cyclonic zones are the exception: harsher conditions and stricter fixing requirements add cost, and cyclonic areas have mandatory tie-down and fixing standards that increase labour on every job.

The bigger variable is what's under your existing roof, which has nothing to do with postcode. A home with sound battens and timber is straightforward to re-roof anywhere; one with rotten or rusted structure costs more in any city, and you don't know which you have until the old roof comes off.

How to keep roofing costs sensible

• Restore if you can. If the roof is structurally sound but tired, a restoration at $40-$65/m² beats a full re-roof many times over.
• Bundle the gutters. Doing guttering and fascia with the re-roof, while the access is set up, is cheaper than a separate job later.
• Match the profile to the budget. Corrugated Colorbond is the most economical metal profile. Premium profiles look sharp but cost more per m².

Questions worth asking before you commit

• Is the quote a fixed price or a range, and how are hidden battens handled? A reputable roofer flags variations on inspection.
• Is removal and disposal of the old roof included? Confirm it, and ask about asbestos if the home is older.
• Is scaffolding and access included? Essential to confirm on two-storey or steep roofs.
• Is new guttering and sarking in the quote, or extra? Often a separate line.
• What's the workmanship warranty, and the material warranty? Colorbond carries a long material warranty; the install is separate.

A roof is a 20-to-50-year asset. The cheapest quote that ignores rotten battens or skips sarking is rarely the cheapest roof once it leaks.

Get a tailored number

A per-m² average can't see your pitch, your access or what's under the old roof. Enter your roof details into Karven's calculator and get an itemised, fixed-price quote in minutes, with the honest caveat that a re-roof's final figure is confirmed on inspection.