roof replacement cost per square metre

Roof replacement and cladding costs, worked out square metre by square metre

A roofing quote is only comparable once you know the roof area, the material, what is being removed and what your state's rules require. These guides show the arithmetic, the licence and insurance thresholds, and where to complain if things go wrong.

  • Illustrative cost ranges for Colorbond, concrete and terracotta tile, restoration and asbestos removal
  • State-by-state licence, deposit and home warranty insurance thresholds as of October 2026
  • Storm claims, statutory warranties, fair trading complaints and the official sources to check

Start hereRe-roof Cost Estimator

Suburban Australian house with a new grey corrugated steel roof beside an older terracotta tiled roof under a clear blue sky

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Costs, Price Factors and 2026 Rules

What drives the price of a new roof or new cladding, how the main materials compare, and the licensing, insurance, approval and safety rules in each state.

10 Guides

Worked Quotes and Checklists

Measuring the roof, reading and comparing quotes, deposits and progress payments, contracts and paying for the job, with the arithmetic shown.

6 Guides

Problems, Claims and Official Sources

Storm claims versus wear and tear, defective work, storm-chaser scams, common mistakes, disputes and the official bodies to contact in each state.

6 Guides

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Tools

Re-roof Cost Estimator

Turn your roof area and roofing option into an illustrative low and high price range, plus fixed costs such as edge protection and waste.

Wall Cladding Cost Estimator

Estimate an illustrative price range for replacing or adding external wall cladding on a house, by wall area and cladding type.

Roofing Deposit Limit Check

Check the maximum deposit a contractor can lawfully ask for under your state's cap, and how much is left for progress payments.

Roofing and cladding options compared

OptionHow it worksGood forWatch out for
Tile roof restorationClean the tiles, replace broken ones, re-bed or re-point ridge capping, then often apply a coatingConcrete or terracotta roofs with sound tiles, battens and structureDoes not fix rotten battens, failed sarking or porous tiles; coatings are cosmetic and need recoating
Metal re-sheet over existing metalRemove old sheets, check and refix battens, install new sheets, flashings and ridgeRusted or leaking steel roofs on a sound frameGutters, valleys and flashings are often extra; fixings must suit the wind classification
Tile to steel (Colorbond-style)Remove tiles and possibly battens, add sarking or insulation blanket, install pre-painted steel sheetsLighter roof load, fewer joints, suits low pitches and bushfire or cyclone upgradesTie-downs may need upgrading; a heritage overlay may require approval to change the material
Concrete tile re-roofStrip and replace with new concrete tiles on new or existing battensKeeping a tiled look at lower cost than terracottaHeavy: the frame must carry the load; tiles can be brittle with age

Comparison →

Frequently asked questions

How much does a new roof cost per square metre in Australia?

It depends on the material, what is removed and how complex the roof is. On this site we use illustrative ranges such as $90–$160 per m² for tile to steel and $25–$60 per m² for a tile restoration, plus fixed costs for edge protection and waste. Measure your roof surface area and run the re-roof cost estimator, then compare with real written quotes.

Is Colorbond cheaper than tiles?

Re-roofing from tile to pre-painted steel is often cheaper than a new terracotta roof and in a similar range to new concrete tiles, but the answer depends on battens, sarking, gutters and structural work. See tile versus Colorbond for a full comparison.

Does my roofer need a licence?

Usually yes above a value threshold. For example, Queensland requires a QBCC licence for most building work over $3,300 and NSW requires a licence for residential building work over $5,000. Victoria and Western Australia have their own thresholds, and metal roofing and stormwater work in Victoria is plumbing work. See the licence threshold guide.

Is home warranty insurance needed for a re-roof?

Often, if the job is above your state's threshold: over $20,000 in NSW, over $3,300 in Queensland for roof work, over $20,000 in Victoria for Home Warranty insurance on contracts from 1 July 2026, and over $20,000 for permit work in WA. The contractor must give you the certificate before taking payment. See home warranty insurance thresholds.

How much deposit can a roofer ask for?

In NSW the cap is 10%. In Victoria it is 5% for contracts of $20,000 or more and 10% below that. In Queensland it is 5% for contracts of $20,000 or more. In WA it is 6.5% for contracts under the Home Building Contracts Act. Use the deposit limit check.

Will home insurance pay for a new roof after a storm?

Home building insurance generally covers sudden storm damage, but not wear and tear, rust, gradual deterioration or poor maintenance. Insurers often pay to repair the damaged section rather than replace the whole roof. See storm damage versus wear and tear.

Can I remove an asbestos roof myself?

Removing more than 10 m² of non-friable asbestos requires a Class B licence, and any friable asbestos requires a Class A licence. A whole roof is far more than 10 m², so a licensed removalist is needed. See the asbestos roof guide.

Who do I complain to about a bad roofing job?

Raise it in writing with the contractor first, then contact your state building regulator or fair trading body, for example Building Commission NSW, the Building and Plumbing Commission in Victoria or the QBCC in Queensland. See where to get help.

How this site is made

Ridge Cap Costs is an independent information project. Guides are drafted with the help of AI writing tools and checked against official and primary sources before publication; see our Editorial Policy. We are not affiliated with any provider mentioned on the site and do not sell products or services.