How much does it cost to replace a tile roof with Colorbond in Adelaide?

An average Adelaide home of 150 to 200 square metres usually costs $25,000 to $30,000 for a concrete-tile strip and insulated Colorbond replacement, with the full range across all home sizes running $20,000 to $60,000.

What is the per-square-metre rate for a Colorbond roof in Adelaide?

Supply and install runs $50 to $100 per square metre. Simple single-storey roofs sit near the bottom, while steep, two-storey or hard-to-access roofs approach $100 once scaffolding and safety rails are added.

Does the quote include removing and disposing of my old roof?

In most cases yes. Strip-out and disposal are built into the quote, and labour including removal is typically 40 to 50 per cent of the total. Tile removal is more labour-heavy than lifting old metal sheets.

My house was built before 1985, will asbestos add to the cost?

Likely. Homes built or renovated before the mid-1980s often contain asbestos cement, which a licensed removalist must take off and dispose of. Expect $40 to $60 per square metre, adding roughly $3,500 to $12,000 depending on roof size.

Why are two quotes for the same size house so different?

The variables are pitch, roof complexity, number of storeys, access, hidden structural repairs and heritage requirements. Together these can add anywhere from a couple of thousand dollars to well over $20,000 on top of the base rate.

Is a new roof cheaper than restoring my old one?

A restoration can be cheaper short term, but it only suits roofs that are structurally sound. If tiles are widely cracked or the frame is failing, a replacement at $15,000 to $35,000 usually works out better value than repeated repairs.

Roof Replacement Cost in Adelaide (2026 Guide)

What a roof replacement actually costs in Adelaide

Across Adelaide, a complete roof replacement on an average home of 150 to 200 square metres runs between $15,000 and $35,000 according to Barossa Roof Works' 2026 price guide. The wide band reflects the gap between a single-storey home with a simple gable and a two-storey home with valleys, dormers and difficult access.

Most homeowners land somewhere in the middle once the old roof is stripped and the frame is checked. The figures below break the job down by material and by the things that quietly push a quote up.

Material choice sets the baseline. Barossa Roof Works puts a medium Colorbond roof of 150 to 200 square metres at $18,000 to $28,000, the same home in new tile at $22,000 to $35,000, and non-Colorbond metal at $14,000 to $24,000. Colorbond carries a lighter load than tile, which matters if the existing frame was designed for steel rather than the heavier concrete tiles, and that structural point is part of why so many Adelaide conversions move from tile to steel rather than the other way around.

Per-square-metre rates for supply and install

Colorbond steel is the most common replacement material in Adelaide and the cheapest to install. Supply-and-install rates sit between $50 and $100 per square metre according to Roof and Render's Adelaide cost guide. Standard colours and profiles start around $35 per square metre for the material alone, with premium profiles closer to $55.

The top of that range applies to harder jobs. A double-storey home with steep pitches, awkward valleys or multiple ridgelines can push the rate toward $100 per square metre once scaffolding and safety rails are factored in. A flat single-storey roof with clear access sits at the lower end.

Tile-to-Colorbond conversion, the most common Adelaide job

Swapping a tile roof for Colorbond is the job Adelaide roofers quote most often, because so many homes from the 1960s through the 1990s were built with concrete tiles that are now cracking or letting water through. The conversion involves removing and disposing of the old tiles, upgrading or replacing battens, and preparing the frame before the new sheeting goes on.

Roo Roofing and other Adelaide guides put these conversions between $20,000 and $60,000 depending on size and complexity. Working examples from 2026 pricing guides:

Small three-bedroom home, pitch of 22 degrees or less: $20,000 to $23,000
Average home, concrete tile stripped and replaced with insulated Colorbond: $25,000 to $30,000
Larger home, same insulated Colorbond spec: $35,000 to $45,000

Insulation, sarking and new flashings are usually quoted as part of the conversion rather than as extras, and they add roughly $3,000 to $5,000 to the job.

Removal and disposal of the old roof

The price of taking the existing roof off and getting rid of it is built into most quotes, but it is worth understanding because it can move the number. Tile removal is labour-heavy, and tip fees for concrete tiles and old metal add up across a full house.

Labour, including strip-out, typically represents 40 to 50 per cent of the total project cost. That share climbs on a tile conversion, where the demolition is slower than lifting old metal sheets.

On an average Adelaide home a full set of new flashings, valley irons and ridge capping is part of the same line item, and a worn roof often needs all three replaced rather than reused. Skip bins or a tip run for the old material are also priced in, which is why a conversion that produces tonnes of broken concrete tile costs more to clear than one that produces a stack of light steel sheets.

Asbestos on older roofs

Many Adelaide homes built before the mid-1980s contain asbestos cement, and the South Australian Government advises that any home built or renovated before that period is likely to contain some form of it. Asbestos roofing must be removed by a licensed removalist and disposed of at an approved site, which adds cost on top of the standard replacement. SafeWork SA publishes a list of licensed removalists, and the official guidance is on the South Australian Government asbestos website.

Adelaide removal quotes for asbestos roofing commonly run $40 to $60 per square metre, with the Barossa Roof Works guide putting the disposal premium at $3,500 to $6,000 on a small home and $7,000 to $12,000 on a large one. Roof-level asbestos costs more to remove than ground-level material because of the working-at-height requirements.

The drivers that move your quote

Two homes of the same floor area can be quoted thousands apart. The main reasons:

Pitch and complexity. Steep pitches, multiple ridgelines and complex roof shapes add $2,000 to $8,000 because of the extra time and safety gear involved, per the Barossa Roof Works guide.
Access and storeys. A two-storey home or a site that is hard to reach adds $1,000 to $3,000 for scaffolding and additional crew.
Structural repairs. Once the old roof is off, rotten timber or sagging rafters can surface. Repairs run $1,500 to $5,000 or more.
Heritage compliance. Homes in heritage zones can carry $3,000 to $10,000 or more in compliance costs to match approved materials and profiles.

A useful rule for budgeting: take the per-square-metre rate, multiply by your roof area rather than your floor area, then add a contingency of 10 to 15 per cent for whatever the strip-out reveals.

What a professional quote should include

A quote worth comparing spells out the area in square metres, the material and profile, and whether removal and disposal of the old roof are included. If those items are missing, the headline price is not the price you will pay.

A standard Adelaide replacement quote should cover strip-out and disposal, new sarking or insulation blanket, new battens where needed, the sheeting or tiles, and all flashings and ridge capping. It should also state what happens if hidden structural damage turns up once the roof is open, because that is the most common reason a final invoice differs from the original number.

Square metres of roof, not floor area, drive the cost, so a single-storey home with wide eaves and a low pitch can be larger than its floor plan suggests. The Adelaide Roofing and Construction cost guide makes the same point that pitch and shape change the true surface area being covered. Getting two or three written quotes from licensed roofers is the only reliable way to land on a real figure for your home, and asbestos quotes in particular should come from removalists on the SafeWork SA licensed list, because that work is regulated separately from the roofing itself.