Replacing a roof is one of the biggest investments most homeowners will make, and it’s natural to want a clear idea of what it will cost. Colorbond® has become a preferred choice across Australia because it combines strength, style, and low maintenance in one system.
In this guide, we break down the real costs of converting to Colorbond®, including materials, labour, and the extras that often catch people by surprise. With the latest figures and practical advice, you’ll know what to expect before you start getting quotes.
What Is Colorbond® Roofing?
Colorbond® is a roofing material made from zinc-aluminium steel with durable painted coatings. These protective layers help prevent rust, chipping, and peeling. Designed for the Australian climate, it is both lightweight and strong, making it a reliable choice for new builds as well as roof replacements.
Unlike traditional tiles, Colorbond® sheets interlock to form a tight seal. This design reduces the risk of leaks and provides better protection during storms.
Homeowners can also choose from a wide range of colours and finishes. This flexibility allows Colorbond® to complement both modern and heritage-style homes, which is why many people turn to our Colorbond® roofing services when upgrading their property.
It is also recognised for being energy-efficient. The reflective coatings help regulate indoor temperatures and can lower cooling costs in summer.
These features have made Colorbond® one of the most popular roofing choices in Australia. It provides a long lifespan, requires little maintenance, and performs well in different environments, from coastal towns to hot inland regions.
How Replacement Costs Break Down
Replacing a roof with Colorbond® involves three main cost components: materials, labour (including removal), and roof size. Below is a detailed look at how each factor contributes to the total project cost.
Material Costs (per m² and per sheet)
| Type of Colorbond® | Typical Cost Range |
| Basic sheets (corrugated) | $18 – $30 per m² |
| Premium / Ultra grade | $35 – $50 per m² |
| Installed (supply + fit) | $53 – $97 per m² |
Material prices depend on the profile, finish, and grade you choose. Corrugated sheets are the most affordable, while designer profiles or standing seam panels fall at the higher end. Premium and Ultra grades include extra coatings that protect against corrosion in coastal or high-humidity areas, which is why they cost more upfront.
Although the initial outlay may seem higher than tiles, Colorbond® generally lasts longer with less maintenance, often exceeding 50 years of service life when installed correctly. For detailed breakdowns, see our full guide on Colorbond® roofing cost per m² installed, including labour, material, and design factors.
Labor & Removal Costs
Labour and removal can account for a large share of the total budget, and costs vary based on several factors:
- Labour installation rates usually sit between $40 – $60 per m². Complex roofs with steep pitches, multiple gables, or skylights require more time and may push costs higher.
- Removal costs depend on your existing roof material. Stripping old tiles is more labour-intensive than removing metal, while asbestos removal is the most expensive due to the need for licensed contractors and specialised disposal.
- Site accessibility also plays a role. Homes with limited driveway or crane access may require scaffolding or extra equipment, adding to labour hours and overall cost.
- Disposal fees for heavy materials like terracotta tiles can increase the final bill, since more truckloads to landfill are required compared with lighter metal sheets.
Factors That Influence Your Final Cost
| Roof Size | Typical Total Cost |
| Small (100–150 m²) | $15,000 – $25,000 |
| Medium (150–200 m²) | $25,000 – $35,000 (Tile → Colorbond® often $20,000 – $22,000) |
| Large (200–300 m²) | $35,000 – $50,000 |
| Extra-large (300–400 m²) | $60,000+ |
Roof size is one of the biggest cost drivers. Smaller homes sit at the lower end of the range, while larger or more complex homes require more materials and labour hours. Two-storey homes can add 10–20% more to the cost even with the same roof area, due to scaffolding, crane hire, and additional safety measures.
Location also plays a part. In Adelaide, for example, tile-to-Colorbond® conversions are often quoted between $20,000 – $60,000, reflecting both labour market differences and material preferences in coastal versus inland areas.
Converting an Existing Roof to Colorbond®
For homeowners considering a roof upgrade, moving to Colorbond® is a common choice. On average, a single-storey conversion costs $15,000 to $25,000, though the final price depends on roof size, pitch, and access requirements. Multi-storey or complex designs usually sit at the higher end due to extra labour and scaffolding.
Beyond cost, there are several clear advantages to converting:
- Lighter load on the structure – Colorbond® weighs less than many traditional materials, reducing stress on the frame.
- Stronger weather protection – Interlocking steel sheets create a tighter seal, improving resistance against leaks and storm damage.
- Energy efficiency – Reflective coatings can lower summer cooling bills by 10–20%.
- Long-term durability – Unlike materials that crack or warp, Colorbond® holds its appearance and performance with minimal maintenance.
A conversion isn’t just about replacing an old roof. It’s about gaining a modern system designed for Australian conditions, offering both performance and long-term value.
Tips to Reduce Your Roof Replacement Cost
Replacing a roof is a big investment, but there are ways to bring costs down without sacrificing quality. Here are five smart tips to consider:
1. Choose the right grade for your environment
Standard Colorbond® performs well in most inland areas. Save on costs by reserving premium or Ultra grades for coastal or high-humidity locations where extra protection is needed.
2. Simplify the roof design
The more gables, valleys, and skylights your roof has, the higher the labour and material costs. A simpler design reduces installation time and overall expense.
3. Bundle additional work
If you also need gutters, downpipes, or insulation, include them in the same project. Combining jobs often lowers separate labour charges and avoids multiple call-outs.
4. Book during off-peak times
Roofing demand peaks in summer and after major storms. Scheduling your project in quieter months can mean faster turnaround and, in some cases, more competitive pricing.
5. Explore bulk material options
Larger roofs or combined projects (for example, with neighbours) may qualify for bulk material savings. Ask your contractor if this is available.
By applying these tips, you can manage your roof replacement budget more effectively while still getting the benefits of a durable Colorbond® system.
Upgrade to Colorbond® Roofing with Metro Roofing Adelaide!
Thinking about replacing your roof? Metro Roofing Adelaide provides expert installation and advice, ensuring you get the best value and long-lasting protection.
Call (08) 7070 8058 or email info@metroroof.com.au today to arrange a consultation and discover the benefits of Colorbond® for your home.