How much does roof replacement cost? [2024]

The integrity of your roof – whether it’s your home or business premises – is essential for your safety and comfort. But getting a total roof replacement can be an expensive process. To help you break down the budget, here’s what you need to know about the cost of roof replacement in Australia.

What are the key factors that affect your roof replacement?

Size

The size of your roof is arguably the biggest factor in pricing. Larger roofs, for example, require more materials and labour to complete the job. Roofing projects are typically estimated based on square metres, so accurate measurements are essential for getting a correct quote.

Material

While the substructure is usually consistent, materials such as terracotta tiles, metal, Colorbond or asphalt shingles differ in price. Each material has its own unit price, time to install and method, which can impact the final cost.

Waste removal

Most tradies will factor the cost of waste removal into their estimate. Proper removal or recycling of the existing roof material is necessary during a total roof replacement. The weight of the old roof material will also be considered when estimating waste-removal costs.

Complexity and additional features

Roofs with multiple angles, slopes or intricate architectural design work may require more labour and materials, thus increasing the overall cost.

Accessibility

How easy is it to get onto your roof? If your property has limited access, difficult terrain or requires specialised equipment for installation, it may result in extra charges.

Local factors

Local factors such as labour rates, the availability of your preferred material and market demand can all affect the cost of roof replacement. Prices may vary from one location to another, so make sure you get a few different quotes upfront.

How much do different roof materials cost?

The roofing material you choose will affect the cost of a roof replacement. Some of the most popular types of roofing materials are:

• Colorbond: $18 to $37 per square metre (m2)
• Concrete and asphalt tiles: $40 to $60 per m2
• Terracotta tiles: $80 to $120 per m2, depending on the pitch of the roof and other factors
• Slate tiles: $200 to $500 per m2 for premium slate

These reflect the cost to replace roof materials and labour, but may not include other costs such as structural work or removal of the old roof.

Colorbond

Colorbond roofing is a popular and affordable option. It should come with a warranty, but the length of the warranty may depend on where you live. If you live near the ocean, ask about Colorbond roofing materials designed for saltwater exposure.

Concrete and asphalt tiles

Asphalt and concrete tiles are relatively affordable options that come in many styles and colours, which can resemble more expensive roofing such as terracotta tiles. You will pay more for higher-quality concrete tiles, but they are still far less expensive than terracotta or slate, and they come with a long warranty.

Terracotta tiles

Terracotta and slate tiles are more expensive options and are also expensive to install, but they have a longer lifespan than concrete or metal roofing.

Slate tiles

Slate roofing is one of the most expensive options, but it's built to last. Some slate roofing is guaranteed for 75 years and slate tiles have been known to last for centuries when properly maintained.

Other options include solar roof tiles and timber roofing.

What are the ongoing costs of maintaining your roof?

Once you have a new roof in place, there are a few costs to consider. Overall, though, you can expect minimal worries. Here are some factors to bear in mind:

• Repairs: While repairs are generally uncommon with a new roof, unforeseen accidents or storm damage can occur. If repairs are needed, they should be relatively straightforward. Although repairs may be rare, it's essential to budget for any unexpected incidents.
• Maintenance: New roofs are designed to be low-maintenance. However, occasional cleaning may be necessary to remove dirt or build-up. It’s crucial that you rely on professionals for roof cleaning as improper DIY techniques can lead to damage or void warranties.
• Warranty: Carefully review the warranty that comes with your replacement roof. Depending on the warranty's terms, you may not be responsible for certain repair or maintenance costs. Reputable installers will provide warranties on their workmanship as well. It's recommended that you choose a tradie who can provide a warranty to protect against any future issues that may arise.

By considering potential repair costs, regular maintenance needs, and warranty coverage, you can better prepare for the ongoing expenses associated with your new roof. While the costs mentioned here are generally manageable, your primary focus should be on enjoying the durability and peace of mind that a new roof provides.

What to consider with Colorbond roofing

Colorbond roofs are engineered to last, with a lifespan of up to 100 years in pristine rural environments. Regular touch-up painting every 10 years helps maintain their appearance. Even in seaside salt-spray conditions, Colorbond roofs can remain rust-free for around 50 years without maintenance. This exceptional durability offers homeowners peace of mind and reduces the need for frequent repairs or replacements.

It's important to consider environmental factors and adhere to maintenance recommendations to ensure the long-term performance of Colorbond roofs. Regular inspections by a professional can help maximise their lifespan and protect your investment.
 

Costs and prices in this article are indicative and should only be used as a guide. They also vary locally and are subject to market forces.