How much does it cost to replace a roof in Australia?

Wondering how much does roof replacement cost? Whether your roof is leaking, sagging, or showing signs of age, replacing it can be a major investment — but also a necessary one. In Australia, the cost to replace a roof typically ranges from $15,000 to $50,000 or more, depending on several key factors including the roof’s size, pitch, material, and your location.

Because every home is different, it’s essential to compare multiple quotes from qualified roofing contractors to get an accurate estimate for your specific project.

In this guide, we’ll look at everything you need to know about roof replacement cost in Australia, including:

• Common signs it’s time to replace your roof

• A breakdown of roof replacement costs

• Key factors that influence pricing

• How to get quotes from local roofing professionals, and more.

Want to find roof installers in Sydney, Melbourne, Brisbane, Perth or Adelaide?

How much does a new roof cost?

The cost to replace a roof in Australia generally falls between $180 and $230 per square metre for a standard-sized home. However, prices can be higher depending on factors such as the roofing material, roof design, accessibility, and your location.

Typically, roof replacement costs include:

• Removal and disposal of old roofing

• Installation of new roofing (e.g. Colorbond roofing or tiles)

• Site clean-up and finishing touches

Roof Replacement Cost Estimates for a 3-Bedroom Home

Here’s a general guide to what you might expect to pay when replacing different types of roofs on a three-bedroom house:

• Replace metal roofing with Colorbond: $6,000 – $15,000

• Replace tile roof with Colorbond: $25,000 – $35,000

• Replace asbestos roofing with Colorbond: $30,000 – $45,000+

Average Roof Replacement Costs by Type

While costs vary widely, here are some average price ranges to keep in mind:

• Standard roof replacement: $10,000 – $25,000 (depending on materials and size)

• Shingle roof replacement: $4,300 – $7,600 on average

• Garage reroofing: $1,000 – $2,500, depending on pitch and material

Keep in mind that every roof is different. For the most accurate pricing, it’s best to get multiple quotes from licensed roofing professionals in your area.

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Cost of roofing materials in Australia

Your choice of roofing material plays a major role in determining your overall roof replacement cost. Some materials are more affordable and easier to install, while others offer greater durability, aesthetic appeal, or energy efficiency — but at a higher price.

Below is a general guide to the cost of roofing materials per square metre:

When choosing a material, consider factors like lifespan, maintenance needs, climate suitability, and how it complements your home’s design. For example, Colorbond roofing is a popular option in Australia due to its durability and weather resistance, while terracotta and slate tiles are valued for their classic look and long lifespan — but at a higher price point.

Want to find roof installers in Sydney, Melbourne, Brisbane, Perth or Adelaide?

Average roof replacement costs by material

If you’re planning a roof replacement, the material you choose will significantly impact your overall cost. Below is a breakdown of the average roof replacement cost in Australia for different roofing materials on a standard-sized home:

Zincalume or Colorbond Roofing

• Estimated cost: $20,000 – $25,000

• A popular choice for Australian homes, these metal roofing options offer durability, energy efficiency, and low maintenance.

Tile Roofing (Concrete or Terracotta)

• Estimated cost: $25,000 – $30,000+

• Tile roofs provide a classic look and strong thermal insulation. Costs can increase based on roof design complexity and tile type.

High-End Materials (e.g. Slate, Solar Tiles)

• Estimated cost: $30,000+

• Premium materials like slate or solar roofing tiles offer exceptional longevity and aesthetics, but come at a significantly higher price point—especially for larger or more complex roofs.

These figures are based on average roof replacement costs in Sydney and can vary in other cities and states across Australia. Factors such as roof design, material availability, and local labour rates can all influence the final cost. To get the most accurate pricing for your specific project, it’s essential to request multiple quotes from licensed roofing professionals in your area.

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What factors affect roof replacement costs?

Every roof is different, which is why it’s important to get tailored quotes from local roofing specialists. That said, several key factors can significantly impact your roof replacement cost in Australia.

1. Roof Size and Pitch

The larger and steeper your roof, the more expensive the replacement. A steep roof requires extra safety equipment and labour, which increases installation time and cost. Flat or low-pitched roofs are easier (and cheaper) to replace. Skillion roofs, with their simple, single-slope design, are often the most cost-effective option.

2. Roofing Material

The type of material you choose will greatly influence the price. For example:

• Concrete tiles are generally the most affordable

• Terracotta tiles offer mid-range pricing with classic aesthetics

• Colorbond and metal roofing cost more upfront but are low-maintenance and long-lasting

• Slate or solar tiles come with premium pricing

3. Labour and Installation Costs

Labour costs vary depending on your location, the complexity of the job, and the experience of the roofing contractor. Specialised materials or intricate roof designs may require more skilled trades and longer installation times.

4. Accessibility and Scaffolding

Is your roof difficult to access? If tradespeople need scaffolding, safety rails, or cranes, expect higher costs. Limited access can also slow down the project and increase labour charges.

5. Local Regulations and Permits

Building codes, heritage restrictions, and council permits may add to your overall expenses. Some areas have stricter requirements around roofing materials, especially in bushfire- or cyclone-prone regions.

Additional factors such as roof shape, asbestos removal, site location, and weather conditions can also push your project towards the higher end of the price range. To get the most accurate pricing, compare multiple quotes and ensure each one details inclusions like material costs, labour, disposal, and clean-up.

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Signs your roof needs replacement

Most roofs have a lifespan of around 20 to 25 years, depending on the material and local climate. As your roof ages, it may start to show signs of wear and reduced performance — especially if it hasn’t been regularly maintained.

Here are some common signs it may be time to replace your roof:

1. Leaks or Water Damage

Water stains on ceilings or walls often point to roof leaks. Left untreated, these can cause mould, rot, and structural damage.

2. Visible Roof Damage

Cracked, broken, or missing tiles or metal panels are signs of deterioration. Storms, fallen branches, and debris can also cause significant damage that may warrant full roof replacement.

3. Aged or Worn Appearance

If your roof looks tired, faded, or patchy, it could be beyond repair. An older roof can bring down your home’s curb appeal and affect resale value.

4. Poor Insulation or Rising Energy Bills

An outdated or poorly sealed roof can allow heat to escape in winter or enter in summer, making your home less energy-efficient and driving up power costs.

5. Frequent Repairs

If you’re repeatedly patching up issues or paying for repairs, replacing your roof may be the more cost-effective long-term solution.

Some homeowners also choose to replace their roof as part of a renovation or to modernise the home’s exterior. A roof replacement can significantly boost your home’s street appeal, energy efficiency, and value. For peace of mind, it’s always best to have your roof assessed by a qualified roofing contractor. They can determine whether repairs are enough or if a full replacement is the smarter option.

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How to get accurate roofing quotes in Australia

While a roof replacement cost calculator can give you a rough estimate, the best way to determine your actual re-roofing cost is to compare multiple quotes from licensed roofing contractors in your area. This helps you evaluate pricing, services, and workmanship before starting your project.

You can use Yellow Pages to find and compare free quotes from local roofing professionals, and read reviews from other homeowners.

Steps to Get a Roofing Quote

To get the most accurate and detailed quotes, follow these steps:

1. Research and shortlist reputable roofing companies in your area.

2. Contact each company to schedule an on-site inspection.

3. Discuss your roofing needs and preferred materials during the inspection.

4. Ask about warranties on materials and workmanship.

5. Check that the roofer has appropriate insurance and complies with the Workers’ Compensation Act.

6. Request a written, itemised quote outlining labour, materials, old roof removal, and clean-up.

7. Compare quotes not just on price, but on inclusions, timelines, and contractor reputation.

8. Clarify any unclear details before signing an agreement.

Roofing Licences in Australia

Always choose a licensed and insured roofing professional. In Australia, licensing requirements differ depending on your state or territory:

• New South Wales (NSW): Roofers must hold licences for roof tiling or slating

• Queensland: A roofing licence is required for roof cladding work

• Victoria: Roofers may need a registered building practitioner licence

• Other states and territories: Check with your local authority for specific requirements

Hiring a licensed roofer ensures compliance with Australian standards and offers better protection if issues arise.

Want to find roof replacement specialists in Sydney, Melbourne, Brisbane, Perth or Adelaide?