
foundation underpinning
Foundation underpinning for treating subsidence

For properties experiencing subsidence, foundation underpinning is the traditional solution. But it’s not the only option.
Mainmark offers fast, non-invasive and reliable alternatives to foundation underpinning and solutions to common problems associated with ground movement or poor soil quality under residential properties, as well as commercial buildings – from factories and warehouses to offices, public buildings and social housing.
Our methods have been used on a wide range of structures, including multi-storey tower blocks, as well as car parks and roads.
Our Teretek® resin injection and JOG computer-controlled grouting techniques are rapid, non-intrusive and dependable ground improvement solutions that serve as effective alternatives to mechanical jacking. These methods address the root causes of subsidence, providing a comprehensive and long-lasting remedy:
Ground improvement – Our methods increase the load-bearing capacity of the soil and mitigate liquefaction.
Lifting and re-levelling – Through precise injection of resin or grout beneath the foundations, we gently lift and re-level the structure, restoring the property to a safe condition.
Void filling – Our techniques fill voids within the soil, providing essential support to the foundation. This enhances the structural integrity of the foundation.
Our solutions are flexible and can be tailored to the unique demands of each project, delivering results that prioritise the safety and stability of commercial buildings and homes.
Is foundation underpinning the right choice?

For properties with subsidence, Mainmark’s solutions may be a better choice than traditional foundation underpinning.
Traditional foundation underpinning is a complicated, costly and disruptive project that aims to strengthen the existing foundations and involves digging out from under the foundations of a commercial building and then carrying out remedial works such as piling or filling the excavation with concrete and other fillers. This labour-intensive process can stretch over weeks or months, and during work, building occupants cannot be present. Often, heavy machinery or equipment may also need to be removed from the premises.
Mainmark’s foundation methods remove many of these complications while providing effective and durable results. Using surgical precision, we drill under the foundations and inject our proprietary materials into key locations. The process is:
Quick – Work can usually be completed in one or two days.
Non-disruptive – There’s no need to vacate the building and surfaces are immediately trafficable.
Cost-effective – Mainmark’s solutions are less expensive than traditional underpinning and have fewer associated costs.
Dependable – The environmentally friendly materials remain strong and stable underground, providing long-lasting protection against subsidence.
Applications – Protecting your assets with foundation underpinning
A diverse group of passionate professionals, each bringing unique skills and experiences to drive innovation and excellence in every project we undertake.




Mainmark foundation underpinning technologies
Our dedicated team of experts is committed to understanding your unique needs and objectives, working closely with you to develop and execute.

Teretek® – Resin injection underpinning alternative
Teretek® is an engineered solution for re-levelling subsided buildings that utilises a plural component, expanding polyurethane resin. The expansion force of the material results in the controlled lift of structures, with a by-product of localised bearing capacity improvement through soil densification.

JOG computer-controlled grouting underpinning alternative
JOG computer-controlled grouting uses a multi-point injection technique to insert cementitious grout materials under foundations. It can be used under commercial and residential buildings ranging from single-storey shops to high-rise structures. The injected materials have a controlled set time, which allows for the precise lifting of a structure.
Mainmark’s specialised in-house solutions
Our dedicated team of experts is committed to understanding your unique needs and objectives, working closely with you to develop and execute.
Featured Case Studies
A diverse group of passionate professionals, each bringing unique skills and experiences to drive innovation and excellence in every project we undertake.
Benefits of Mainmark’s treatments for foundation underpinning
Our dedicated team of experts is committed to understanding your unique needs and objectives, working closely with you to develop and execute.
Fast
Our ground strengthening solutions can be completed within a matter of days or hours.
Immediately trafficable
Soon after work is completed, the area can be reopened to foot traffic and vehicles.
Non-invasive
Repairs are performed without the need for excavation or extensive disruption.
Cost-effective
Compared to other solutions, our technologies cost significantly less.
Environmentally inert
We use safe materials that are non-toxic and do not leach into the environment or affect the treated area.
Reliable
Our ground strengthening solutions provide long-term performance and protection for your investment.
Get in Touch
Our dedicated team of experts is committed to understanding your unique needs and objectives, working closely with you to develop and execute.

foundation underpinning
Foundation underpinning for treating subsidence

For properties experiencing subsidence, foundation underpinning is the traditional solution. But it’s not the only option.
Mainmark offers fast, non-invasive and reliable alternatives to foundation underpinning and solutions to common problems associated with ground movement or poor soil quality under residential properties, as well as commercial buildings – from factories and warehouses to offices, public buildings and social housing.
Our methods have been used on a wide range of structures, including multi-storey tower blocks, as well as car parks and roads.
Our Teretek® resin injection and JOG computer-controlled grouting techniques are rapid, non-intrusive and dependable ground improvement solutions that serve as effective alternatives to mechanical jacking. These methods address the root causes of subsidence, providing a comprehensive and long-lasting remedy:
Ground improvement – Our methods increase the load-bearing capacity of the soil and mitigate liquefaction.
Lifting and re-levelling – Through precise injection of resin or grout beneath the foundations, we gently lift and re-level the structure, restoring the property to a safe condition.
Void filling – Our techniques fill voids within the soil, providing essential support to the foundation. This enhances the structural integrity of the foundation.
Our solutions are flexible and can be tailored to the unique demands of each project, delivering results that prioritise the safety and stability of commercial buildings and homes.
Is foundation underpinning the right choice?

For properties with subsidence, Mainmark’s solutions may be a better choice than traditional foundation underpinning.
Traditional foundation underpinning is a complicated, costly and disruptive project that aims to strengthen the existing foundations and involves digging out from under the foundations of a commercial building and then carrying out remedial works such as piling or filling the excavation with concrete and other fillers. This labour-intensive process can stretch over weeks or months, and during work, building occupants cannot be present. Often, heavy machinery or equipment may also need to be removed from the premises.
Mainmark’s foundation methods remove many of these complications while providing effective and durable results. Using surgical precision, we drill under the foundations and inject our proprietary materials into key locations. The process is:
Quick – Work can usually be completed in one or two days.
Non-disruptive – There’s no need to vacate the building and surfaces are immediately trafficable.
Cost-effective – Mainmark’s solutions are less expensive than traditional underpinning and have fewer associated costs.
Dependable – The environmentally friendly materials remain strong and stable underground, providing long-lasting protection against subsidence.
Applications – Protecting your assets with foundation underpinning
A diverse group of passionate professionals, each bringing unique skills and experiences to drive innovation and excellence in every project we undertake.




Mainmark foundation underpinning technologies
Our dedicated team of experts is committed to understanding your unique needs and objectives, working closely with you to develop and execute.

Teretek® – Resin injection underpinning alternative
Teretek® is an engineered solution for re-levelling subsided buildings that utilises a plural component, expanding polyurethane resin. The expansion force of the material results in the controlled lift of structures, with a by-product of localised bearing capacity improvement through soil densification.

JOG computer-controlled grouting underpinning alternative
JOG computer-controlled grouting uses a multi-point injection technique to insert cementitious grout materials under foundations. It can be used under commercial and residential buildings ranging from single-storey shops to high-rise structures. The injected materials have a controlled set time, which allows for the precise lifting of a structure.
Mainmark’s specialised in-house solutions
Our dedicated team of experts is committed to understanding your unique needs and objectives, working closely with you to develop and execute.
Featured Case Studies
A diverse group of passionate professionals, each bringing unique skills and experiences to drive innovation and excellence in every project we undertake.
Benefits of Mainmark’s treatments for foundation underpinning
Our dedicated team of experts is committed to understanding your unique needs and objectives, working closely with you to develop and execute.
Fast
Our ground strengthening solutions can be completed within a matter of days or hours.
Immediately trafficable
Soon after work is completed, the area can be reopened to foot traffic and vehicles.
Non-invasive
Repairs are performed without the need for excavation or extensive disruption.
Cost-effective
Compared to other solutions, our technologies cost significantly less.
Environmentally inert
We use safe materials that are non-toxic and do not leach into the environment or affect the treated area.
Reliable
Our ground strengthening solutions provide long-term performance and protection for your investment.
Get in Touch
Our dedicated team of experts is committed to understanding your unique needs and objectives, working closely with you to develop and execute.

foundation underpinning
Foundation underpinning for treating subsidence

For properties experiencing subsidence, foundation underpinning is the traditional solution. But it’s not the only option.
Mainmark offers fast, non-invasive and reliable alternatives to foundation underpinning and solutions to common problems associated with ground movement or poor soil quality under residential properties, as well as commercial buildings – from factories and warehouses to offices, public buildings and social housing.
Our methods have been used on a wide range of structures, including multi-storey tower blocks, as well as car parks and roads.
Our Teretek® resin injection and JOG computer-controlled grouting techniques are rapid, non-intrusive and dependable ground improvement solutions that serve as effective alternatives to mechanical jacking. These methods address the root causes of subsidence, providing a comprehensive and long-lasting remedy:
Ground improvement – Our methods increase the load-bearing capacity of the soil and mitigate liquefaction.
Lifting and re-levelling – Through precise injection of resin or grout beneath the foundations, we gently lift and re-level the structure, restoring the property to a safe condition.
Void filling – Our techniques fill voids within the soil, providing essential support to the foundation. This enhances the structural integrity of the foundation.
Our solutions are flexible and can be tailored to the unique demands of each project, delivering results that prioritise the safety and stability of commercial buildings and homes.
Is foundation underpinning the right choice?

For properties with subsidence, Mainmark’s solutions may be a better choice than traditional foundation underpinning.
Traditional foundation underpinning is a complicated, costly and disruptive project that aims to strengthen the existing foundations and involves digging out from under the foundations of a commercial building and then carrying out remedial works such as piling or filling the excavation with concrete and other fillers. This labour-intensive process can stretch over weeks or months, and during work, building occupants cannot be present. Often, heavy machinery or equipment may also need to be removed from the premises.
Mainmark’s foundation methods remove many of these complications while providing effective and durable results. Using surgical precision, we drill under the foundations and inject our proprietary materials into key locations. The process is:
Quick – Work can usually be completed in one or two days.
Non-disruptive – There’s no need to vacate the building and surfaces are immediately trafficable.
Cost-effective – Mainmark’s solutions are less expensive than traditional underpinning and have fewer associated costs.
Dependable – The environmentally friendly materials remain strong and stable underground, providing long-lasting protection against subsidence.
Applications – Protecting your assets with foundation underpinning
A diverse group of passionate professionals, each bringing unique skills and experiences to drive innovation and excellence in every project we undertake.




Mainmark foundation underpinning technologies
Our dedicated team of experts is committed to understanding your unique needs and objectives, working closely with you to develop and execute.

Teretek® – Resin injection underpinning alternative
Teretek® is an engineered solution for re-levelling subsided buildings that utilises a plural component, expanding polyurethane resin. The expansion force of the material results in the controlled lift of structures, with a by-product of localised bearing capacity improvement through soil densification.

JOG computer-controlled grouting underpinning alternative
JOG computer-controlled grouting uses a multi-point injection technique to insert cementitious grout materials under foundations. It can be used under commercial and residential buildings ranging from single-storey shops to high-rise structures. The injected materials have a controlled set time, which allows for the precise lifting of a structure.
Mainmark’s specialised in-house solutions
Our dedicated team of experts is committed to understanding your unique needs and objectives, working closely with you to develop and execute.
Featured Case Studies
A diverse group of passionate professionals, each bringing unique skills and experiences to drive innovation and excellence in every project we undertake.
Benefits of Mainmark’s treatments for foundation underpinning
Our dedicated team of experts is committed to understanding your unique needs and objectives, working closely with you to develop and execute.
Fast
Our ground strengthening solutions can be completed within a matter of days or hours.
Immediately trafficable
Soon after work is completed, the area can be reopened to foot traffic and vehicles.
Non-invasive
Repairs are performed without the need for excavation or extensive disruption.
Cost-effective
Compared to other solutions, our technologies cost significantly less.
Environmentally inert
We use safe materials that are non-toxic and do not leach into the environment or affect the treated area.
Reliable
Our ground strengthening solutions provide long-term performance and protection for your investment.
Get in Touch
Our dedicated team of experts is committed to understanding your unique needs and objectives, working closely with you to develop and execute.