Since 1989, Mainmark has provided successful ground improvement, level correction, and void filling solutions, addressing subsidence in residential properties.
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Fast, cost effective & non-invasive subsidence solutions to fix cracked walls and cracked bricks
Fast, clean and non-invasive lifting of sinking floors and slabs
Our solutions are more cost-effective, with minimal disruption to the area
We offer the most advanced house re-levelling and underpinning technology in the market
The world’s most advanced earthquake remediation, liquefaction mitigation and ground-strengthening technologies
Resin Injection Underpinning– the modern alternative to traditional underpinning
Ground improvement modifies a soil’s properties, improving its load bearing capacity or resilience against liquefaction
We re-level buildings that have experienced subsidence, settlement, or other structural issues leading to uneven floors and foundation cracks
We can underpin, raise and re-level sinking foundations
Comprehensive void filling solutions for diverse market sectors, using specialised chemical or cementitious grouts
Our non-invasive and cost-effective solution is a safe way of re-levelling concrete slabs with soil settlement or subsidence problems
Mainmark has delivered ground engineering solutions to commercial businesses and properties for 35 years. Capitalising on this expertise and knowledge, our range of innovative products and advanced solutions provide remediation of assets and structures.
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State-of-the-art, non-invasive solutions to ensure productivity is maintained
Address a range of underlying issues impacting buildings and infrastructure due to weak or unstable ground
We remediate assets for electricity, gas, waste management and telecommunication providers, as well as water authorities
Our non-invasive approach is essential when treating these significant and sometimes fragile structures
Ground improvement modifies a soil’s properties, improving its load bearing capacity or resilience against liquefaction
We re-level buildings that have experienced subsidence, settlement, or other structural issues leading to uneven floors and foundation cracks
Our non-invasive and cost-effective solution is a safe way of re-levelling concrete slabs with soil settlement or subsidence problems
Comprehensive void filling solutions for diverse market sectors, using specialised chemical or cementitious grouts
Terefil is a unique, specialist flowable fill material that can fill massive pipelines and concrete culverts quickly and cost-effectively
Our innovative technologies offer advanced site-specific solutions for revitalising ageing or damaged buildings, assets and infrastructure.
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Keeping Australia's roads and bridges operational with minimal disruption
The fast, non-disruptive pavement stabilising solutions for Australia's airports
Re-supporting port terminals and seawalls with minimal disruption to operation whilst prioritising safety
Keeping railways on track with innovative level correction solutions
Ground improvement modifies a soil’s properties, improving its load bearing capacity or resilience against liquefaction
We re-level buildings that have experienced subsidence, settlement, or other structural issues leading to uneven floors and foundation cracks
Our non-invasive and cost-effective solution is a safe way of re-levelling concrete slabs with soil settlement or subsidence problems
Comprehensive void filling solutions for diverse market sectors, using specialised chemical or cementitious grouts
Terefil is a unique, specialist flowable fill material that can fill massive pipelines and concrete culverts quickly and cost-effectively
If you cant find what you’re after please don’t hesitate to contact us.
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).
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If you’re facing subsidence issues such as crack walls or sinking foundations, Mainmark provides industry-leading resin injection underpinning services in Adelaide to restore your home’s structural integrity.
With 35 years of experience, Mainmark specialises in advanced foundation repair solutions, ensuring your home is safe and stable for years to come.
Underpinning is a process that strengthens and stabilises the foundation of a building. Traditional underpinning methods involve excavation and the use of concrete to provide additional support. However, Mainmark offers a modern alternative to traditional concrete underpinning through our advanced resin injection technique.
Resin Injection: A Modern Solution for Cracked Walls
Our resin injection underpinning solution is a highly effective method to address foundation issues and cracks in walls. This innovative technique involves injecting resin material into the ground beneath your home or building. As the resin expands, it fills voids, providing ground improvement and level correction to the structure. This method is non-invasive, quick, and causes minimal disruption and to your property.
Here are some key indicators that your foundation may need underpinning:
These signs suggest that the ground beneath your home has moved, and resin injection underpinning may be required to restore stability.
The cost of underpinning a house using resin injection varies based on the size of the property and the extent of foundation damage.
However, resin underpinning is generally more cost-effective compared to traditional methods due to its efficiency and lower labour requirements.
Contact us for a personalised quote based on your property’s needs.
Since 1989, Mainmark is the trusted leader in foundation repair and resin injection underpinning. We have successfully helped thousands of homeowners and businesses fix cracked walls, address foundation settlement, and resolve house subsidence issues.
Our team of experts is committed to providing cost-effective, efficient, and long-lasting innovative solutions backed by our 50-year product warranty.
Maimark – Your Trusted Ground Engineering Partner:
Don’t let cracks in walls or foundation settlement compromise the safety and value of your property. If you’re dealing with cracked walls, cracked brick walls, or suspect house subsidence, contact Mainmark today for a free, no-obligation site inspection. Our expert team will assess your property and provide the right concrete underpinning solution to restore your property’s structural integrity.
Our technologies have fast curing times and treated areas can be used immediately or without the delays compared to traditional repair methods.
Our technologies use an inert material that is non-toxic and does not leach into the environment or affect the treated area.
Our solutions are of surgical nature compared to traditional methods.
Compared to traditional methods, our solutions are more cost-effective, with minimal disruption to the area.
Submit your enquiry using our online form. Include a brief message about the type of foundation issues you are experiencing.
Our friendly customer service team will be in touch to schedule a site assessment that suits you.
One of the Mainmark experts will visit your commercial 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.
© 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
1800 623 312
Australia
