Frequently asked questions

We’ve covered the most common queries below. If yours isn’t here, Talk to us — we’ll assist right away.

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General

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We’re a trusted retaining wall contractor with years of experience in sandstone walls, concrete sleepers, and bulk earthworks. Our focus is quality workmanship, reliable timelines, and clear communication from start to finish.

We design and construct sandstone retaining walls, concrete sleeper walls, and handle all associated bulk earthworks. We also supply and deliver high-quality quarry direct A grade, B premium, B grade & Random sandstone blocks across Brisbane and the Gold Coast.

Yes, we provide clear, fixed-price quotes with no hidden fees, so you know exactly what to expect. If any additional costs arise due to on-site conditions or engineering recommendations, we’ll always discuss them with you before any work begins.

All engineered retaining walls come with a 60 year structural guarantee.

We can usually arrange an on-site inspection within 2–5 business days, depending on location and project urgency. Contact us or get a quote to schedule a site inspection.

Lead times can vary depending on the time of year, current workload, and the scope of your project. While we generally aim to start most jobs within 2–3 weeks of approval, more complex builds or busy periods may require a longer wait.

If your project is time-sensitive, let us know, we’ll do our best to accommodate urgent builds where possible.

Contact us to check our current availability.

Yes, we build retaining walls for both residential and commercial clients. Whether it’s a backyard wall, a large subdivision, or a civil infrastructure project, we have the equipment and experience to deliver high-quality results at any scale.

Sandstone walls

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Sandstone offers natural aesthetics, excellent drainage, and proven durability in Queensland’s climate. It’s an eco-friendly, locally sourced solution.

Costs generally range from $280–$500 per m², depending on block size, wall height, and site complexity. Get a tailored quote on our sandstone wall service page.

Yes, our designers can add sandstone steps, curved tiers, or raised planters to create a seamless landscape feature.

Yes, we handle the entire council approval process, including engineering forms (15, 16 & 21) and lodgement with your local council. Whether you’re in Brisbane, Ipswich, Gold Coast and surrounding areas, we ensure your sandstone retaining wall meets all local building regulations.

Both options are strong and long-lasting, but the best choice depends on your site, style, and budget. 

Sandstone is ideal for a natural, premium look and performs well on sloped or landscaped blocks. Learn more

Concrete sleepers are great for tight spaces, straight lines, and a modern finish. Learn more

We’re happy to assess your site and recommend the best solution, get in touch for advice.

Sandstone supply

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We stock A and B Grade blocks in 400mm, 500mm and 600 mm heights, plus premium landscape grade for feature walls.

Yes, we deliver A grade, B premium, B grade, Random sandstone, and premium landscaping blocks for Residential and Commercial locations.

Most orders are delivered within 1–2 weeks. If needed, we can often accommodate urgent deliveries, just get in touch to check availability.

We deliver in body trucks or larger truck & quad loads. The amount of blocks per load varies depending on the sizes.

Yes, our minimum order quantity is 10 sandstone blocks.

Our standard delivery does not include block placement—we don’t use crane trucks. Sandstone blocks are tipped off the back of the truck in a safe and accessible location.

If you have a suitable machine available on-site (like a skid steer or excavator), blocks can be unloaded and placed by the customer. In this case, an additional fee may apply to cover truck waiting time.

Brisbane, Ipswich, Gold Coast, Sunshine Coast, Gympie, Hervey Bay, Maryborough, Cooroy, Crows Nest, Toowoomba. Basically anywhere as far north as Maryborough and as far South as Yamba.

Contact us to see if we deliver to your area.

Choosing the right sandstone blocks depends on the look you’re after and the size of the wall you’re building.

  • A Grade sandstone blocks: 5–6 sawn sides, offering the most uniform and premium appearance. Learn more
  • B Premium Sandstone blocks: feature 4 sawn sides for a cleaner finish. Learn more
  • B Grade Sandstone blocks: between 2–4 sawn sides (minimum top and bottom). Learn more

The block size and grade you need will depend on your wall’s length, height, and structural requirements. Our team can walk you through the best option based on your site and budget.

Need help deciding? Talk to us for tailored advice.

Concrete sleeper walls

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Concrete sleepers deliver slim profiles, high load capacity, and minimal maintenance—ideal for tight spaces or high-impact sites.

We offer both. Hot-dip-galvanised SHS or universal beams ensure longevity and strong corrosion resistance.

Queensland regulations permit walls up to 1m high without certification, but site conditions may still require an engineer’s sign-off.

We typically dig footings 600–900 mm deep with 25 MPa concrete, adjusted per soil report and engineer guidelines.

Both concrete sleeper walls and sandstone retaining walls have their advantages, depending on your site conditions, budget, and the look you’re after.

Our team can talk you through the pros and cons of each option and help you choose the best solution for your project. We’ll consider factors like soil type, wall height, drainage, aesthetics, and engineering requirements to make sure you get a retaining wall that’s both functional and long-lasting.

Bulk Earthworks

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Bulk earthworks involve the large-scale movement and reshaping of soil, rock, and other materials to prepare land for construction. This includes cutting, filling, leveling, and compacting the ground to create a stable base for retaining walls, house pads, driveways, or landscaping projects.

At Sandstone Company, we provide professional bulk earthworks services across Brisbane, the Gold Coast, Ipswich, and South East Queensland—whether you’re building a new home, installing a retaining wall, or preparing a rural block. Our skilled team uses modern excavation equipment to ensure precision, safety, and efficiency on every site.

No, we don’t offer equipment hire. All of our excavation and earthmoving machinery is operated by our qualified team as part of our retaining wall and bulk earthworks services. This ensures every job is completed safely, efficiently, and to the highest standard.

Yes, we provide level 1 compaction for residential house pads in line with engineering and council requirements. Our team follows strict compaction testing and site preparation standards to ensure your foundation is stable, compliant, and ready for construction.

Our fleet handles site cuts, drainage, basement digs and pad prep across Brisbane and the Gold Coast.

We’re licensed to test, classify, and dispose of contaminated material at approved facilities.

Yes, we’re available for subcontract work. Whether you need retaining wall construction, bulk earthworks, or sandstone supply as part of a larger project, we can work in with builders, landscapers, or developers across South East Queensland.

Get in touch to discuss your project

Not at all, bulk earthworks are essential for both residential and commercial projects. While large commercial developments often require extensive earthmoving, residential properties also benefit from bulk earthworks when preparing for retaining walls, house pads, driveways, drainage, or landscaping.

At Sandstone Company, we regularly carry out residential bulk earthworks across South East Queensland. Whether you’re building on a sloped block or reshaping your backyard, our experienced team can help you get the ground right before construction begins.