The short answer
For a typical single-storey Adelaide house, a full roof replacement in 2026 generally lands somewhere in the tens of thousands of dollars, with a steel re-roof at the lower end and new tiles or an asbestos roof at the upper end. Small repairs cost a fraction of that. The ranges below are planning figures only, drawn from the general market, and they assume ordinary access and a roof that needs no major structural work. A contractor has to see the roof before you can rely on any number.
2026 planning bands
| Job | Rough range, as a guide | What usually sits inside it |
|---|---|---|
| Roof repairs | $500 – $3,000 | Replacing broken tiles or a few sheets, re-sealing flashings, clearing and re-bedding a short run of ridge, fixing a valley |
| Metal re-roof (old iron or Zincalume to new steel) | $14,000 – $30,000 | Strip-off, new sheets and screws, ridges and flashings, sarking or blanket, new gutters on a single-storey house |
| Tile to Colorbond conversion | $17,000 – $35,000 | Tile removal and disposal, batten changes to suit steel, blanket, new steel roof, flashings and gutters |
| Re-tiling with new concrete or terracotta tiles | $25,000 – $55,000+ | Tile strip-off, battens, sarking, new tiles, ridge bedding and pointing, valleys and flashings |
| Asbestos roof removed and replaced with steel | $25,000 – $60,000+ | Licensed removal, wrapping and disposal, any clearance inspection, then the new roof as above |
All figures are in Australian dollars, include GST and are a guide only. Two-storey houses, steep pitches, heritage detailing, difficult access and large roofs sit above these bands. An on-site quote is needed for every job.
What pushes the price up or down
Roof area and shape. Contractors price on the true surface area, not the floor plan. A hip roof with several valleys, dormers and changes of pitch takes far longer than a plain gable of the same footprint.
What is coming off. Steel comes off quickly. Concrete tiles are heavy and slow to strip and cart. Asbestos cement adds licensed removal and disposal, which is the single biggest variable on many older homes.
What is going on. Standard Colorbond, coastal-grade steel, concrete tile and terracotta all sit at different points. Profile, colour and accessories such as ridge vents also matter.
The timber underneath. Once the old roof is off, rotten or undersized battens, borer or termite damage and sagging sections need fixing. A good quote explains how this is handled and priced before it happens.
Access and safety. Edge protection is required for roof work at height. Two storeys, steep blocks in the Hills, narrow side paths and roofs over neighbours' land all add set-up time and equipment.
Gutters, insulation and solar. New gutters and downpipes are usually wise during a re-roof but are not always included. Upgrading to a thicker blanket adds material cost. Panels have to come off and go back on, normally with an electrician involved.
Approvals. Like-for-like re-roofing often needs no development approval in South Australia, but heritage places, changes to roof form and some structural work can. If a lodgement through PlanSA is needed, fees and documentation add to the job. Check with your council before work starts.
Reading a quote properly
The cheapest quote is often the least complete one. Before signing, check that the quote names each of these items, or says plainly that it is excluded:
- strip-off, cartage and disposal of the old roof
- batten repairs or replacement, and how unknown timber damage will be priced
- sarking, anticon or blanket, with the product named
- ridge capping, flashings, valleys and any wall or chimney details
- gutters, downpipes and fascia work
- scaffold or edge protection
- solar, aerial, skylight and evaporative unit removal and reinstatement
- clean-up, magnetic sweep for screws and offcuts
- payment stages and the deposit amount
In South Australia, building work contractors are licensed by Consumer and Business Services, and you can check a licence on the CBS public register. We ask the contractors we work with to hold the licences and insurance the job needs; ask to see them before work starts. Domestic building contracts in SA come with consumer protections, including rules about deposits and, for larger jobs, building indemnity insurance. CBS publishes the current thresholds, so check them rather than relying on a quote's fine print.
Ways to keep the cost sensible
- Get the roof inspected before it becomes urgent. Planned work avoids the make-safe and temporary-cover costs that come with emergency calls.
- Book outside the busiest weeks. Contractors are often stretched straight after a storm and in the lead-up to winter. Our note on the best time of year for roof replacement explains the seasonal pattern.
- Keep the scope honest. Don't pay for a replacement when a repair will do, and don't patch a roof that has clearly reached the end of its life. Signs you need a roof replacement helps you tell which is which.
- Bundle related jobs. Gutters, insulation and any solar changes are cheaper while the scaffold and crew are already there.
Next steps
If you want a real number, call 08 7100 9699 or use the form below to book a free inspection. For the services themselves, see re-roofing, tile roof replacement, metal roof replacement and roof repairs. The roofing FAQ answers the questions that come up most often after people have read this page.
Before you book: the usual questions
Why do two Adelaide roofing quotes differ so much?
Usually because they price different scopes. One may include new battens, a blanket, new gutters, scaffold and solar removal, while another leaves those out or lists them as possible extras. Put the quotes side by side line by line before comparing the totals, and ask each contractor what is excluded.
Is steel cheaper than tiles?
For most houses a tile-to-Colorbond conversion costs less than re-tiling with new tiles, because steel is lighter, quicker to lay and needs fewer pieces. Complex roofs with many hips and valleys, two-storey access and premium coastal-grade steel narrow the gap.
How much extra does an asbestos roof add?
Enough to plan for separately. Asbestos cement has to be removed by a removalist holding the licence SafeWork SA requires, wrapped, carted and disposed of at an EPA-licensed facility, and sometimes a clearance inspection follows. That cost sits on top of the new roof.
Can I spread the cost by doing part of the roof?
Sometimes. A rear skillion, a verandah or a garage can often be done on its own, and a sound roof with a few faults should simply be repaired. Replacing a failing roof in pieces usually costs more overall because scaffold, set-up and flashing work are repeated.
Will my insurer pay for a new roof?
Only your insurer can say. Policies generally respond to sudden events such as storm, hail or a falling tree, not to wear, rust or age. A contractor's inspection report with photos helps the assessor, but the decision rests with the insurer.
Talk to us about your job
Tell us what is going on and where. A local contractor will come back to you with a price.
Ring 08 7100 9699