• Construction
Our work in the construction industry includes onsite topsoil amelioration for large highway projects, airports and infrastructure projects, and working with developers, civil contractors and commercial landscapers to make landscaping topsoil for subdivisions. We also work on small townhouse developments, and with problem materials such as contaminated soils and wet clay soils. 

The first part of our process involves understanding what our clients are trying to achieve. This might be:
  • reducing risk on a project which requires 95% grass coverage to achieve practical completion
  • reducing waste disposal costs for unsuitable materials
  • guaranteeing landscaping success for a large subdivision where presentation is important for land sale prices
  • increasing the compactibility or CBR rating of fill
  • turning subsoil into topsoil
  • reducing the amount of water needed for landscaping by creating a custom blended soil that requires less water
  • aerating soils that have been stockpiled for long periods of time
  • fixing a contamination issue
  • onsite sorting of waste to reduce disposal costs and improve recycling outcomes. 
Next we work with our clients to better understand their budget, and if required to test materials on their site so a qualified soil scientist can make amelioration or remediation recommendations. 

If needed we help you source ameliorants (mix-ins), and blend them at the correct ratios at the same time as removing large particles from your soil and aerating it to create a friable and easy to spread topsoil. To finish we can do validation testing to prove we have achieved the outcome you are seeking or blended materials at the correct ratios according to the soil scientist's recommendations. If there are any issues, we can send an expert to your site to investigate and help fix the problem. 

We have an outstanding reputation in the industry and have worked with tier 1 Principal Contractors, right through to small civil operators, commercial landscapers and directly for Councils, the State Government and Developers. 

Roads and Highways

Around 50% of our work is creating MRTS16 topsoil (R178 topsoil in New South Wales) for highway projects. With full safety and environmental procedures in place, we work directly for Principal Contractors, Landscapers and Civil Earthworks contractors on projects from 400m3 to 400,000m3.

Using a rotating trommel screen over a typical flatdeck screen is superior in most highway job applications because: 
  • We ameliorate (add mix-ins) at the time of screening
  • We deal with clay soils, C&D rubble (shopping trolleys, engine blocks, concrete sign footings, other roadside refuse) and wet materials
  • We bring soils which have been stockpiled for long periods of time back to life
  • We guarantee the lowest wastage rates meaning less cost to dispose of waste and higher product yields 
Research shows that in situ amelioration (sprinkling ameliorants over the top of soil and using a rotary hoe to incorporate them into the top 10cm) is not enough to achieve the specification or the desired outcome in many construction applications. We guarantee compliance and our results. We work with your soil scientist (or recommend one) to devise a commercial solution to improve existing site soil to meet the specification. We think reusing site soil is a much better option for projects than exporting unsuitable materials and paying to import topsoil. It's also more cost effective, reduces the number of trucks on local roads around the project and it's better for the environment because it minimises changes to the local ecosystem and reduces the risk of contaminants being introduced.

Although we recommend using the best quality ameliorants you can afford, some of our clients have recently had success creating their own composted green waste onsite. This creates an alternative to imported organics and composts to increase nutrient levels in soil enough to pass AS4419, MRTS16 or R178 standards. 


Many of southeast Queensland’s developers and their landscapers are realising that recycling topsoil for their subdivision jobs is a good opportunity to save money on their projects, reduce changes to the local eco-system and guarantee landscaping outcomes.

While some landscape architects specify use of recycled topsoil to reduce environmental impact, other savvy landscapers and developers stockpile stripped site soil and ask us to make AS4419 or better quality topsoil onsite instead of paying to import topsoil.

The rotating action of our trommel screen allows us to screen and ameliorate (add mix-ins) at the same time, avoiding double handling. We also deal with clay soils, wet and bulky materials.

Our expert soil scientists (or your own, if preferred) can recommend ameliorants and ratios to improve site soil to AS4419, MRTS16 or R178 standard, or create superior custom blends suitable for the plantings or challenges on your site. They can map soils across the site prior to stripping, or classify soils on a stockpile by stockpile basis. 

Reusing existing soil means fewer trucks on local roads carting away waste and bringing back imported topsoils, less change to the eco-system on your site and significant savings. 

For more information on developing custom specifications for topsoil reuse on your development, please contact us today for a confidential no obligation discussion with one of our topsoil amelioration specialists.
With the waste levy being reintroduced to Queensland this year, landfill will no longer be the best option for materials which could otherwise be recycled.

Queensland on average is currently recovering just 50% of C&D waste. Significant improvements are needed to reach the Queensland Government target of 80% recovery.

SoilCyclers takes pride in our ability to currently salvage and sort around 80% of waste in preparation for recycling and look to the European world best practice of 97% as our goal.

If you are an organisation without the volume of waste to support a full time recycling operation, SoilCyclers can assist with monthly, bi-monthly or quarterly visits to provide:
  • Onsite salvage and sorting of C&D waste in preparation for recycling including sieving of soils, separation of concrete and bricks for crushing, separation of metals
  • Onsite remediation of contaminated soils e.g. acid sulphate soils, soils contaminated with non-friable asbestos, PFAS/PFOS contaminated soils
  • Increased capacity for energy from waste facilities who are unable to keep up with incoming demand
  • Additional capacity for processing organics in preparation for sale or reuse where your existing infrastructure is unable to keep up with demand
  • Sorting and processing of skip bin waste
We have environmental permits for use on any site in Queensland so we may already have the required paperwork and licensing already in place for your job even if your site doesn’t.

We also have Biosecurity Instrument Permits to remediate soil in fire ant contaminated areas, so phone us on 1300 748 388 for a discussion on how we can assist you.
We are C&D waste remediation specialists, with experience cleaning entire sites from 1000m3 to 150,000m3+. These jobs are often highly sensitive and unable to be advertised until years after completion due to contractual requirements, so for a confidential discussion of our experience and your job, please phone us today on 1300 748 388.
Traditional mine site remediation works have involved in situ amelioration of the top 10cm of soil and limited ability to deal with anaerobic or dead soils which may have been stockpiled for years killing all the soil bacteria necessary for growth. Our method is more expensive but offers significant advantages including guaranteed growth, the ability to aerate and ameliorate soils which have been stockpiled for long periods of time, and the ability to treat subsoil as well as topsoil to generate tree growth within a short period of time. 

Where your site doesn't have suitable topsoil, our soil scientists can audit and test stockpiles and identify materials we can use to make topsoil on your site. We can also work with you to create ameliorants to improve your soil using materials on our near your site. 

Another challenge with mine site remediation works is that most contractors don't have the capacity to tackle the sheer volumes of material on a mine site. Just one SoilCyclers crew can consistently ameliorate more than 1000m3 of material in a 10 hour day. We have three crews available and the ability to work night shift if necessary to meet your requirements.

Our trommel screens are road registered and able to travel to remote sites across Queensland, the Northern Territory, New South Wales and Victoria, or further afield for large jobs where we can be cost effective. We can source technical expertise from some of the best soil scientists in Australia or we can follow recommendations from your soil scientist. 

Give us a call on 1300 748 388 to discuss your project.
  • Topsoil Amelioration & Recycling
  • Screening of difficult materials

Topsoil Amelioration

Did you know that onsite topsoil amelioration using existing site soil is generally less than half the cost of importing topsoil? We travel to you and recycle on your site, reducing the cost of transporting waste and importing materials that you can make yourself for a fraction of the cost.

Our expert soil scientists (or your own if preferred) can test your existing stockpiled materials and provide amelioration recommendations to meet the specification or standard provided by your landscape architect, or an existing specification such as AS4419, MRTS16 or R178. If there is no specification, we can provide you with advice on a custom blend to suit the plantings on your site and your budget.

We will source ameliorants such as compost, sand, lime, dolomite or gypsum in accordance with the soil scientist’s recommendations, and help you choose a screen size to suit the material, the specification or intended usage of the material. Our experienced crews will mobilise to your site with a mobile trommel screen to recycle your site soil. Unlike a flatdeck or reclaimer screen which moves from side to side, our mobile trommel screens are large rotating cylindrical sieves. One advantage of the rotating action of the trommel is screening and blending or ameliorating (adding mix-ins) can be done in the one process, avoiding double handling and bringing anaerobic or lifeless soils that have been stockpiled for long periods back to life.

Reusing existing soil means fewer trucks on local roads carting away waste and bringing back imported topsoils, less changes to the eco-system on your site and significant savings.

This video has more information on amelioration using a trommel screen.
In addition to our work ameliorating topsoils, we also undertake remediation work on contaminated soils. Our soil remediation and decontamination work can include any combination of separating materials from the soil, or treating contamination issues by mixing materials with the soil.

Some of the work we have done separating materials from soil includes:
  • Separating C&D waste or rubble from soil (concrete, bricks, metal, wood)
  • Separating soil from mulch
  • Separating non-friable asbestos from soil
  • Separating plastic contamination from soil
  • Separating ordnance from soil (ammunition mound clean ups)
  • Finding lost items in soil
Some of the soil contamination issues we can treat includes: 
  • Acid sulphate soils
  • Hydrocarbon contaminated soils
  • Bioremediation of soils
  • Sodic soils
Mobile trommel screens are the perfect tool for dealing with contaminated soils. Our screens are made from metal punch plate rather than wire, and have a self cleaning mechanism to deal with blockages. Trommel screens are much better suited to dealing with wet and bulky materials and clay-based soils than a traditional flatdeck or reclaimer screen. We have completed a number of tip site remediation jobs including clean up of the former Petrie Paper Mill site, and clean up of Bayshore Drive for Byron Shire Council.
Sometimes we are asked to undertake screening as part of a waste reduction project, where we are sieving or separating materials to reduce the amount of waste our client must pay to remove from site. This might occur where there is a large amount of soil contaminated with C&D waste or rubble. By separating the rubble from the soil and testing the soil the client is usually able to reuse the soil onsite and pay only to dispose of the waste or oversize.

Alternatively we also have clients approach us to separate mulch from soil or fines, so that mulch can be sent for recycling at a power plant. Our minimum quantity is 400m3.  
Our mobile trommel screens are the ideal machinery to deal with difficult materials including wet materials, clay-based soils, marine mud, coal-tar contaminated soils, soils containing rubble, soils containing bulky materials and unusual materials such as manure or drain sludge. While flatdeck screens are well suited to sandy materials, we are willing to provide you with advice and a price to give almost any material a go.