Exposed Aggregate Driveway Cost: What To Expect

If you’re considering an exposed aggregate driveway, cost will depend on much more than the number of square metres you need poured. The aggregate you choose, site preparation, access, excavation, drainage and finishing requirements can all affect the final quote. As a general Australian guide, exposed aggregate is commonly priced around $100–$150 per m², although local and project-specific costs vary. For Central Coast and Lake Macquarie homeowners, understanding what goes into that price makes it much easier to compare quotes and decide whether exposed aggregate is the right finish for your driveway.

Exposed aggregate is a decorative concrete finish that reveals the stones or aggregate within the concrete rather than leaving a smooth layer of cement paste at the surface. After the concrete has been placed and finished, the surface layer is removed at the appropriate stage to expose the aggregate underneath. The result is the distinctive textured appearance associated with exposed aggregate driveways.

Homeowners can select from different aggregate colours, sizes and combinations, allowing the driveway to complement the home, landscaping and other exterior finishes. It’s also only one of several driveway finishes available. If you’re still comparing options, our guide to the types of concrete finishes available locally explains some of the alternatives and where they can work well.

Current Australian cost guides put exposed aggregate at approximately $100–$150 per square metre as an indicative range. By comparison, plain concrete is commonly quoted at around $65–$85 per square metre nationally. These figures are guides rather than fixed rates, and actual prices depend on the individual project. That difference is important when budgeting for a larger driveway.

For example, imagine a homeowner planning a 50m² driveway. Applying an online per-square-metre average might provide a useful starting point, but it shouldn't be treated as the final price. If the site requires significant excavation, difficult access or drainage work, the quote can change substantially.

The reverse can also apply to a straightforward, accessible site. If you’re planning exposed aggregate driveways on the Central Coast, Coastal Kerb and Concrete can assess the site and discuss aggregate options before providing a project-specific quote.

Exposed aggregate generally costs more because producing the decorative finish involves additional materials and labour. The surface needs to be exposed correctly after pouring, and sealing is typically recommended as a final step. Plain concrete has a simpler finish, so it is usually the more economical choice when appearance isn't a major priority. With exposed aggregate, you're paying for both a functional driveway and a decorative surface. The visible stones introduce colour and texture that standard grey concrete doesn't provide.

This makes the exposed aggregate vs plain concrete cost comparison about more than the initial price. Homeowners should consider the finish they want, how it will work with the property and their overall project budget. To understand the broader concrete driveway cost, it helps to compare finishes alongside the conditions of your specific site rather than relying solely on an online per-metre figure.

Two driveways with the same area won't necessarily receive the same quote. According to current Australian cost guidance, excavation, levelling, drainage, site accessibility and the concrete required can all influence concreting costs.

Some of the main considerations include:

• Driveway size: More square metres generally means more concrete, aggregate and labour.
• Site preparation: Excavation, levelling and preparation of the base can add to the work involved.
• Existing concrete: Removing and disposing of an old driveway creates additional labour and disposal requirements.
• Site access: Restricted access can make getting concrete, equipment and workers to the installation area more difficult.
• Slope: Sloping sites can require additional preparation and labour compared with straightforward flat sites.
• Drainage: Some properties require additional drainage work as part of the driveway project.
• Aggregate selection: The decorative materials and finish selected can affect material costs.
• Driveway requirements: Concrete specifications need to suit the intended loads and use of the driveway.

These variables are why a quote prepared after inspecting the property is much more meaningful than multiplying the driveway area by a generic online rate.

A proper quote should make clear what work is included, so you can compare contractors on a like-for-like basis. Depending on the project, the work can involve site preparation, formwork, concrete placement, the selected aggregate finish, exposing or washing the surface and sealing. Excavation, removal of an existing driveway, drainage or unusual access requirements may also need to be accounted for.

Ask what is and isn't included rather than assuming every per-square-metre price covers exactly the same scope. The aggregate itself also deserves attention. Different colours and stone combinations can change the appearance considerably, so it helps to choose based on the surrounding property rather than price alone.

Sometimes, but the condition of the existing concrete is critical. Resurfacing an existing driveway may be possible where the underlying concrete remains in suitable condition. Current Australian resurfacing guidance notes that concrete driveways in good condition can potentially be resurfaced, whereas substantial cracking or structural problems may require more extensive repairs or replacement. Simply covering a failing driveway doesn't address the underlying problem.

If your existing slab has significant cracks, movement or other damage, a concreter should assess it before recommending an overlay. Removal and replacement may provide the more appropriate long-term solution. This is another area where an on-site assessment matters. What looks like a cosmetic crack to a homeowner may indicate a problem that needs addressing before any new finish goes down.

Exposed aggregate can make sense for homeowners who want the durability of concrete with a more decorative finish. The exposed stone creates natural variation in colour and texture, making the driveway a more prominent part of the property's exterior design. Its textured finish can also provide useful traction, which is one reason exposed aggregate remains popular for driveways and other outdoor surfaces.

Whether the additional cost is worthwhile ultimately depends on your priorities. If keeping the initial price as low as possible matters most, plain concrete may suit you better. If appearance, texture and a wider choice of finishes are important, exposed aggregate is worth considering.

Start with the actual site rather than an online calculator. Measure-and-multiply estimates are useful for early budgeting, but they can't account for access, excavation, slope, drainage, existing concrete or the aggregate finish you select. Coastal Kerb and Concrete works with homeowners across the Central Coast and Lake Macquarie and can assess the practical requirements of the job as well as the finish you want. Ready to put a realistic figure around your project? Contact us for a free quote, and our team can walk you through your aggregate options and what to expect on site.