Operating for 36 Years I 150+ Years of Experience I 87,000+ Jobs Completed I Iso Accredited I In-house Engineers

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Video Gallery

Residential Properties

Residential Video Gallery

Teretek® Resin Injection

In Action on Residential Properties

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.

Watch our innovative, cost-effective and non-invasive Teretek® resin injection solution in action on subsided residential properties.

Cracked Walls

Sinking Floors

Driveway Re-levelling

Slab Lifting

Residential Subsidence Repair

Before & After Treatment

Houses that need to be re-levelled often develop cracks in walls, sinking floors, sticking windows or jammed doors.

Our innovative solutions are designed to address sinking foundations and cracked walls, ensuring long-lasting stability for your home. Whether it’s a sinking foundation or a cracked wall repair, sinking concrete floor or re-levelling a driveway, we provide tailored services to every job.

We offer a range of underpinning options, including resin injection underpinning and concrete underpinning, to help raise and relevel sunken structures. The cost of underpinning varies depending on factors like the extent of damage and the type of foundation. Our expert team specialises in underpinning footings and crack wall repair, ensuring your home is safe and secure for the future.

Video Gallery

Teretek® Resin Injection

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.

Watch our innovative, cost-effective and non-invasive Teretek® resin injection process.

Mainmark

© 2025 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

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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

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