Exposed Aggregate Driveways Perth: Start to Finish

If you are researching exposed aggregate driveways in Perth, you want straight answers: what the process actually involves, what materials go into a quality job, and what you should realistically pay. Woodlands Construct has been laying exposed aggregate across Perth for over a decade, and we have seen exactly what separates a driveway that looks great at five years from one that is cracking and fading at two. This guide covers everything from the first site assessment to the final seal, with no fluff and no marketing spin.

Exposed aggregate is a decorative concrete finish where the top layer of cement paste is removed, either by surface retarder or water washing, to reveal the natural stone aggregate embedded within the mix. The result is a textured, slip-resistant surface that handles Perth's intense summer heat, UV exposure, and occasional coastal salt air far better than plain brushed concrete.

The look you get depends heavily on the aggregate species chosen. Common options we use include:

• Tuscan blend, a warm mix of cream, gold, and terracotta tones that suits Federation and heritage-style homes in suburbs like Subiaco and Cottesloe
• River pebble, a smooth round stone with a natural grey-brown palette popular in contemporary new builds across the northern corridor
• Black basalt, a high-contrast finish that pairs well with rendered white facades in areas like Coogee and North Fremantle
• Quartz seeding, where decorative quartz is broadcast onto the surface for a glittering premium finish

For a full look at finish options and past projects, visit our exposed aggregate driveway service page.

The Installation Process: Step by Step

Every exposed aggregate driveway we install follows the same structured process. Cutting corners at any stage shows up years later as cracking, surface delamination, or uneven aggregate exposure. Here is how we do it properly.

Step 1: Site Assessment and Subbase Preparation

We start with a thorough site inspection. We check the existing soil type, which in Perth's coastal plain is often soft sand or clay, assess drainage fall requirements, and confirm any underground services with the homeowner. We then excavate the subbase to a minimum depth of 100mm for residential driveways, compact it with a plate compactor, and top it with 75mm of compacted road base. This base layer is non-negotiable. A weak subbase is the single most common cause of premature driveway failure.

Step 2: Formwork and Reinforcement

We set timber or steel forms to the correct falls, typically a 1:100 crossfall for drainage. We install F72 steel mesh reinforcement, sitting on bar chairs to hold the mesh at the correct mid-slab depth. For heavier-use driveways, such as those that will regularly carry a tradesman's van or a boat trailer, we specify F82 mesh and consider 125mm slab depth.

Step 3: The Concrete Pour

We use premium ready-mix concrete supplied by Geostone, one of Australia's leading decorative concrete suppliers. Their mixes are engineered specifically for exposed aggregate work, with consistent aggregate grading and controlled water-cement ratios that affect both the finished appearance and the long-term strength of the slab. We specify a minimum 25 MPa mix for residential driveways, with most jobs poured at 32 MPa for added durability.

We pour the concrete, screed it to level, and float it smooth. We then apply surface retarder evenly across the slab before covering it with plastic sheeting to control the cure rate of the top paste layer while the body of the slab sets underneath.

Step 4: Exposing the Aggregate

This is the step that requires real skill and experience. After the slab has reached the correct initial set, typically 6 to 10 hours depending on ambient temperature, we remove the plastic sheeting and wash back the surface paste with a low-pressure hose and soft brush. The goal is to expose the aggregate to a depth of roughly 3mm to 5mm. Too early and the stones dislodge. Too late and the paste has hardened beyond reach. Perth's hot summers mean we often pour in the early morning to manage setting times.

Step 5: Curing and Sealing

After washing, the slab cures for a minimum of 28 days before we apply the final penetrating sealer. We use a high-solids acrylic sealer suited to Perth's UV conditions. The sealer locks in the colour, protects against oil and tyre marks, and makes the surface easier to clean. We also cut control joints at regular intervals, generally every 3 to 4 metres, to manage any natural shrinkage cracking and direct it to predetermined lines.

Timeline: How Long Does It Take?

A standard residential driveway in Perth runs to the following schedule:

• Site prep and formwork: 1 day
• Pour and aggregate exposure: 1 day
• Initial cure before foot traffic: 48 to 72 hours
• Full cure before vehicle traffic: 7 days minimum
• Final seal application: day 28 or later

From first visit to sealed finish, allow 4 to 5 weeks for the full process. We give every client a clear schedule before work starts so there are no surprises around access or parking.

What Does an Exposed Aggregate Driveway Cost in Perth?

Pricing depends on size, site conditions, aggregate selection, and any additional complexity such as retaining walls or drainage channels. As a general guide for Perth residential work:

• Standard single-car driveway (20 to 30 sqm): $3,000 to $5,500
• Double driveway (40 to 60 sqm): $6,000 to $10,000
• Large driveway with crossover and apron (70 sqm plus): $11,000 to $18,000 depending on access and aggregate species

Premium aggregate species like black basalt or quartz seeding add roughly $20 to $35 per square metre over a standard river pebble mix. Difficult access, such as a narrow side passage in an older Nedlands or Mount Lawley property, can also affect labour pricing. We provide itemised written quotes so you can see exactly what you are paying for.

What Sets a Quality Job Apart

We have quoted against cheaper operators and lost some jobs on price. Those clients occasionally come back to us when the driveway starts failing, usually because the subbase was inadequate, the concrete strength was undersized, or the aggregate exposure was rushed in cold or hot conditions. At Woodlands Construct, our approach is simple. No shortcuts. No surprises. That commitment has earned us a 5-star Google rating across dozens of Perth residential projects.

Using suppliers like Geostone means we get consistent, engineered mixes batch to batch. Using correct reinforcement means the slab handles the load cycles a real driveway faces over 20-plus years. And using an experienced crew means the aggregate exposure step is done at exactly the right moment, every time.

Frequently Asked Questions

How much does an exposed aggregate driveway in Perth typically cost?

For most Perth residential driveways, budget between $100 and $175 per square metre for exposed aggregate, fully installed and sealed. A standard double driveway of 50 sqm will typically land between $6,500 and $9,000. Factors that push cost up include premium aggregate species, difficult site access, thicker slab specifications for heavy vehicles, and any drainage or earthworks required as part of the job.

What concrete finish lasts longest in Perth's climate?

Both exposed aggregate and honed concrete perform well in Perth's conditions. Exposed aggregate has a natural advantage in high-UV and coastal environments because the textured surface hides minor surface wear and its slip resistance does not rely on a coating that can degrade over time. The key factor in longevity is not the finish itself but the mix strength, subbase preparation, and whether a quality UV-stable sealer was applied and maintained. A properly installed exposed aggregate driveway in Perth should last 25 to 40 years with basic care.

How long does the installation process take from start to finish?

The physical work takes 2 days for most driveways, covering subbase prep and forming on day one, and the pour plus aggregate exposure on day two. You can walk on the surface after 48 to 72 hours and drive on it after 7 days. The final penetrating sealer goes down at the 28-day mark once the concrete has reached full cure. We schedule this final seal visit automatically so you do not have to chase us for it.

Do I need council approval for a new driveway in Perth?

In most cases, no. Residential driveways and crossovers in Perth fall within standard permitted development and do not require a development approval. However, you will generally need to notify your local council or the City of Perth if you are altering or constructing a new crossover, as they manage the verge and footpath connection. Some heritage precincts in suburbs like Fremantle or Victoria Park have additional requirements. We advise all clients on this at the quote stage so the paperwork does not hold up your project.

Ready to Get Started?

Woodlands Construct services all areas across Perth, from the northern suburbs to the southern corridor and everywhere in between. If you are ready to get a clear, itemised quote for your exposed aggregate driveway, get a free quote through our website or call us directly on 0433 510 118. We will visit the site, measure up, and give you a written quote with no obligation and no vague estimates.