Get a FREE Quote Call Us

Search

If you cant find what you’re after please don’t hesitate to contact us.

Select Region

Please select the global region website you'd like to view.

Asia
Japan

Get a FREE Quote

Submit your enquiry using the online form with a brief description of the issue. A Mainmark expert will be in touch within 24–48 hours (excluding weekends and public holidays).

After clicking Submit, you’ll receive an email with the next steps—please check your inbox and spam folder.

Hidden
Photos or reports of issues (optional)
Drop files here or
Max. file size: 16 MB.
    Consent
    This field is for validation purposes and should be left unchanged.

    Latest News

    Road and Infrastructure Remediation Experts

    Mainmark has revolutionised ground engineering and asset preservation with innovative solutions and technologies, providing efficient and effective forms of infrastructure remediation.

    As infrastructure ages and the population increases, the strain on existing infrastructure assets will only increase.

    This strain sometimes exceeds capabilities, leading to necessary remediation and replacement. 

    Conventional methods of infrastructure rehabilitation often require excavation, leading to lengthy delays and interruption to operations, that not only extend the overall on-site programme, but also create significant inconvenience to the public. 

    With over three decades of experience and knowledge in leading, developing and delivering the most advanced and accurate ground improvement, re-levelling, and void-filling solutions, Mainmark specialises in minimising costs and disruptions, across residential, commercial, infrastructure and mining sectors. 

    With over 84,000 completed projects across Australia, New Zealand, Japan, and the United Kingdom, Mainmark has built a global reputation for delivering innovative solutions to some of the most iconic projects in the world, earning international recognition as an award-winning ground engineering organisation.

    Teretek®

    As the pioneers of Teretek resin injection technology in Australia, Mainmark has successfully grown its global presence over the last 35 years and today has 18 office locations worldwide. 

    Teretek Resin Injection is a fast, non-disruptive, and economical solution for filling voids, re-levelling subsided structures and improving ground. 

    Teretek Resin Injection is a technology that has been qualified, tested, and adopted by infrastructure authorities across Australia. 

    Teretek materials expand in a controlled manner, allowing their targeted placement to fill voids, reconfirm support, and raise subsided structures with precision. 

    One of the main benefits of this technology is its ability to restore serviceability to an asset quickly and economically. As soon as the repair is completed, the area can be reopened to traffic and full use.

    The use of Teretek is often utilised as a proactive approach to maintaining and strengthening assets to extend their life and minimise disruption to operations before significant deterioration sets in. 

    The product is environmentally inert: non-toxic and does not leach into the environment or negatively affect the treated area. 

     

    Terefil® 

    Mainmark’s Terefil technology provides an advanced lightweight cellular concrete for soil replacement, large void filling, and pipe abandonment. 

    Terefil is a highly flowable cementitious material that can be easily pumped over very long distances. 

    It is an engineered, lightweight and strong product that is far more versatile than traditional bulk void-fill materials.

    Environment

    Mainmark’s innovative technologies and processes have a significantly lower carbon footprint than traditional methods via efficient processes that avoid demolition, excavation, the creation of waste, substantially cutting down on production and transportation emissions. 

    Engineered Solutions

    Mainmark’s in-house engineers have a wealth of knowledge and experience working with various stakeholders throughout the infrastructure, commercial and mining sectors, including government and other major facility and asset owners and their engineering teams.

    Successfully delivering projects for airports, rail, ports, roads and bridges, heritage listed buildings, utilities, public buildings and mining.

    Mainmark’s innovative, non-invasive, non-disruptive and economical asset repair and preservation solutions proactively fortify and preserve infrastructure. 

     

    Laurie Andrews
    Laurie holds a Civil Engineering degree, an MBA, and 25 years of experience designing and delivering innovative solutions for residential, industrial, and commercial projects. As Regional Business Development Manager for NSW and ACT, he focuses on identifying opportunities, enhancing local capabilities, and delivering technical expertise to the market.
    Author's other posts
    Mainmark

    © 2026 The Mainmark group of companies. ‘Mainmark®’, ‘Terefil®’, ‘Terefirm®’ and ‘Teretek®’ are trademarks of the Mainmark group of companies.

    Mainmark Ground Engineering Pty Ltd
    ABN: 51 606 182 503

    ISO 9001
    ISO 14001
    ISO 45001

    Solutions

    Ground Improvement

    Subsidence Repair

    Re-Levelling

    Void Filling

    Slab Lifting

    Crack Wall Repair

    Sinking Floors

    Sinking Foundation Repair

    Underpinning Repairs

    Locations

    Adelaide

    Brisbane

    Canberra

    Hobart

    Melbourne

    New South Wales

    Perth

    Queensland

    South Australia

    Sydney

    Tasmania

    Townsville

    Victoria

    Western Australia

    Sectors

    Commercial

    Residential

    Infrastructure

    Mining

    Technologies

    Teretek®

    Terefil®

    JOG

    About Us

    Our team

    Careers

    Media & Press

    News

    Awards

    Contact

    Locations
    Mainmark Sydney

    169 Sailors Bay Rd, Northbridge NSW 2063

     

    Mainmark Melbourne

    Unit 8, 33 Rosalie Street, Springvale VIC 3171

    Mainmark South Australia

    19 Heath St, Lonsdale SA 5160

    Mainmark Queensland

    20 Computer Road, Yatala QLD 4207

    Mainmark Perth

    115 Excellence Dr, Wangara WA 6065

    Mainmark Tasmania

     4/11 McRorie Court Cambridge TAS 7170

    Privacy Policy

    Terms and Conditions

    Created by Codex

    YouTube
    Facebook
    LinkedIn
    Instagram