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    Who we are

    About Mainmark

    Our history

    Mainmark Australia

    The pioneers of Resin Injection technology in Australia.

    Founded In 1989 by Philip Mack following the earthquake that affected Newcastle, Mainmark quickly established itself as a local industry leader in tailored earthquake repair and remediation solutions. When the work in Newcastle concluded, the company ventured into new territory and began using our specialist grouting techniques elsewhere. This proved to be a catalyst for the future of Mainmark.

    Since then, Mainmark has diversified and expanded to offer specialised above and below-ground engineering and remedial services.

    Philip’s commitment to excellence and family values never changed, and these qualities drove Mainmark’s growth spanning over 30 years. He believed in getting the job right the first time, with careful planning to ensure the structure was correctly understood and remediated. This same ethos continues today and into the future.

    Industry Leaders Since 1989

    Mainmark has led the industry for re-levelling, ground improvement and void-filling solutions, developing and delivering the world’s most advanced and accurate solutions.

    As a global ground engineering and asset preservation company, we draw on 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 across residential, commercial, infrastructure and mining sectors.

    With over 87,000 completed projects across Australia, New Zealand, Japan, Thailand and the United Kingdom, we have 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.

    Mainmark is a privately owned company headquartered in Sydney, Australia. We have successfully grown our global presence over the last 20 years and have 18 office locations worldwide.

    Key highlights

    A proven industry leader

    2016 Ground Engineering Awards

    Christchurch Art Gallery Re-level Project

    Our vision

    We are the first-choice ground engineering, asset repair and preservation partner, solving complex challenges that others cannot

    Our mission

    With international scale and local expertise, our people collaborate with clients to maintain the value, serviceability and safety of their buildings and structural assets. From homes that represent a family’s most important investment to public and commercial buildings, infrastructure, and industrial structures, we preserve, protect and restore using specialist, innovative solutions and technologies. Our satisfaction and pride are derived from solving problems more effectively and efficiently than conventional methods.

    Our core values

    Delivering exceptional outcomes to our
    clients, partners and team.

    Visionary

    We were founded to be the best and we continue to strive for excellence.

    Protective

    We prioritise the health, wellbeing and safety of our people, our clients and the environments in which we operate.

    Professional

    We approach our work with professionalism, which is evident in how we present ourselves, interact with others and deliver projects.

    Inclusive

    We promote diversity in the workplace and nurture an open, respectful culture where everyone is heard.

    Collaborative

    We are passionate about what we do, we work closely as a team and in partnership with our clients.

    Inventive

    We are resourceful and continually improve, innovate and think creatively to solve problems.

    Our Awards

    Mainmark is proud to be recognised as the leader in ground engineering solutions

    International Project of the Year

    Christchurch Art Gallery

    Good Design Award

    Toowoomba Bypass

    Our team

    Meet our highly experienced team

    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

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