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Sand Permeation Solutions

Uniting half a century of geotechnical expertise with innovative methods, Rectify Group delivers superior sand permeation solutions to safeguard and stabilise your construction projects.

Soil Stabilisation Through Sand Permeation

Sand permeation involves injecting or permeating sand or a similar granular material into loose or weak soils. The primary purpose is to fill gaps and voids between soil particles, thereby increasing the density and stability of the soil.

How it Works:

  1. Site Assessment: A thorough analysis of the soil properties and conditions is conducted to determine the suitability of sand permeation for a given site.

  2. Selection of Material: Sand or a similar granular material is chosen based on the soil type and the desired outcome. The material's grain size and shape are crucial factors that affect the permeation process.

  3. Injection Method: There are different resins that can be injected into the soil using various techniques. One common method is using pressurized air or water to carry the sand deep into the soil layers.

  4. Filling Voids: As the resin permeates the soil, it fills the voids between soil particles. This reduces the pore space and increases the contact points between grains, leading to greater friction and interlocking.

  5. Increased Density and Stability: The polyurethane resin increases the density of the soil, thereby enhancing its load-bearing capacity and resistance to deformation or settlement.


  • Foundation Support: Used to strengthen the soil beneath foundations, particularly for structures such as buildings, bridges, and roads.

  • Erosion Control: Helps in controlling erosion in areas where soil particles are prone to being washed away.

  • Ground Improvement: Enhances the overall stability of the ground for construction projects, especially in areas with loose or sandy soils.


  • Non-Invasive: Less invasive compared to some other soil stabilisation methods.

  • Environmentally Friendly: Can be a more environmentally friendly option.

  • Versatility: Suitable for a variety of soil types and construction scenarios.

Here's Why We Stand Out

The Rectify Advantage

Unrivalled Experience
We have a team of qualified structural engineers, geologists, project managers, supervisors and technicians with highest level of expertise and training.
Cutting-Edge Technology
We invest in the latest technology, equipment and materials, constantly reviewing latest developments from around the world
Quality Assurance
Our commitment is backed by the quality of our workmanship, offering a 10 year warranty across our services.
Seamless Delivery
Our non-invasive technique ensures you do not vacate your home or business, enabling continuity of use
Affordable Solutions
We ensure the solutions provided are affordable and competitive when compared to other similar companies
Environmentally Conscious
Low carbon footprint using less raw materials, reduced site traffic and excellent thermal insulation properties.
Our Testimonials

What our clients
are saying

Get in touch with the Rectify team today to begin work on your next project.


35+ reviews

Highly Recommended

Thanks to all the team - Frank, Armand, Adrian, Birt, Junior, Beyz and Tina - for the professional approach and expertise brought to a difficult four townhouse stabilization and lift project. Highly recommended.
Bill Rees
Verified Customer

Very Professional

Very professional. Explained everything to me and answered all my questions. The guys were always on time and cleaned up everything when they left, and they were friendly and polite.
Andrea Wilde
Verified Customer

Professional & Clear

Professional and clear advice, all services undertaken in a planned and timely manner. At the moment all seems well - but a bit early to confirm definitively
Cheryl Sullivan
Verified Customer

Beyond Expectation

We were very satisfied with all aspects of their service. The outcome was beyond expectation with all wall issue greatly improved. Their knowledge and service was great. Would highly recommend Rectify.
Kris Camm
Verified Customer

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Rectify Group is an Australian ground engineering and asset remediation company.
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