Operating for 35 Years I 150+ Years of Experience I 84,000+ Jobs Completed I Iso Accredited I In-house Engineers

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Submit your enquiry using our online form and include a brief message about the issues you are experiencing. A Mainmark expert will contact you within the next 24 to 48 hours, excluding weekends and public holidays.

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Residential

Protect Your Asset From Subsidence

Overview

Residential Solutions

Since 1989, Mainmark has raised, re-levelled and re-supported homes and other residential buildings, delivering successful solutions to thousands of properties.

Our ground improvement and level correction methods can address foundation subsidence and are effective for helping to fix cracks in walls or re-level sunken floors in homes of any size. Our solutions are also used for slab lifting foundation slabs and large driveways.

Residential House Re-levelling Videos

Watch Our Re-levelling Solutions In Action

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.

Problems we solve
for our clients

Cracked Walls

Fast, cost-effective and non-invasive subsidence solution to fix cracked walls.

Sinking Floors & Slabs

Fast, clean and non-invasive lifting of sinking floors and concrete slabs.

Jammed Doors or Windows

Our solutions are more cost-effective, with minimal disruption to the area.

Out of Level Concrete

We offer the most advanced house re-levelling and underpinning technology in the market.

Earthquake Damage

The world’s most advanced earthquake remediation, liquefaction mitigation and ground strengthening technologies.

Underpinning Repair

Resin Injection – the modern alternative to traditional underpinning. Description here

Mainmark Google Reviews

How we get your home back to level in as little as a day.

Mainmark’s industry
leading solutions

Re-levelling

Mainmark specialises in re-levelling buildings that have experienced subsidence, settlement, or other structural issues leading to uneven floors and foundation cracks.

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Ground Improvement

Mainmark specialises in advanced ground improvement methods, delivering a suite of technologies that cover densification, solidification, and soil replacement methods.

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Void Filling

Mainmark offers comprehensive void filling solutions for diverse market sectors, using specialised chemical or cementitious grouts.

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Mainmark’s specialised
solutions

Ground Improvement

Ground improvement modifies a soil’s properties, improving its load bearing capacity or resilience against liquefaction.

Re-levelling

We re-level buildings that have experienced subsidence, settlement, or other structural issues leading to uneven floors and foundation cracks.

Void Filling

Comprehensive void filling solutions for diverse market sectors, using specialised chemical or cementitious grouts.

Slab Lifting

Our non-invasive and cost-effective solution is a safe way of re-levelling concrete slabs with soil settlement or subsidence problems.

Residential Resources

Homeowners’ Guide to Teretek® Resin Injection
Print At Home Crack Gauge

Get a quote

Arrange a site assessment in 3 simple steps:

Step 1

Submit your enquiry using our online form. Include a brief message about the type of foundation issues you are experiencing.

Step 2

Our friendly customer service team will be in touch to schedule a site assessment that suits you.

Step 3

One of the Mainmark experts will visit your home or property, assess the damage, and ascertain the likely cause. They will establish the approach needed, creating a plan specific to the needs of your building and provide you with a detailed quote.

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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

Locations

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Teretek®

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Locations
Mainmark Sydney

169 Sailors Bay Rd, Northbridge New South Wales 2063

 

Mainmark Melbourne

Unit 8, 33 Rosalie Street, Springvale Victoria 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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