
underpinning cost
At the heart of our journey lies the trust of thousands of businesses worldwide, reflected in the numbers that drive us forward.
How much does underpinning cost?

If you’ve discovered subsidence in your home, one of the first things you’ve probably wondered is how much remediation methods, such as underpinning, will cost you.
When calculating the price of underpinning for a residential home, the numbers can quickly go up, but the good news is that Mainmark’s more modern alternatives, resin- and cementitious grout-injection techniques, may also be suitable for saving your home and saving you money.
Depending on the method used, underpinning costs can vary. Here are some rough estimates for subsidence treatment for an average three-bedroom terraced house*:
Underpinning – mass concrete: £13,000
Underpinning – piling: £23,000
Mainmark’s resin injection: £7,500
Of course, there are additional underpinning costs to consider, particularly with the more disruptive mass concrete or piling methods:
Inspections, surveys and building control applications
Potential legal fees for party wall agreements if you live in an attached or semi-detached property
Accommodation for your family while the work is carried out
Re-landscaping around your home after the underpinning is complete
The disruption to your everyday family life
Mainmark’s technologies help you to avoid the majority of these extra costs. Since the work is carried out quickly and with minimal disruption, this minimises the expense, as well as the stress and inconvenience.
*The above costs are averages, based on October 2023 prices and are for comparable like-for-like results.
How Mainmark helps to avoid high underpinning costs

Traditional underpinning costs are high because mass concrete and piling are messy projects that involve digging out the ground from under the foundations of your home. Mainmark’s Teretek® and JOG computer-controlled grouting techniques for dealing with subsidence take a much less invasive – and much more cost-effective – approach.
Our ground engineers will drill small holes (about 16mm in diameter) to the ground under your home’s foundations, and sometimes the floors, and then inject our proprietary resin or grout formulations. The technologies can:
Fill the voids in the soil underneath your home – Helping to support the foundation
Gently lift the house – Bringing your home back to level
Improve the soil – Increasing ground load-bearing capacity and mitigating liquefaction under your home.
The process is quick and unintrusive and can often be completed in a day, and there’s no need for your family to vacate your home while work is being carried out.
Once the project is completed, minor repairs may be necessary, such as filling in any holes drilled in the floor and repairing any cracks or other damage caused by the subsidence.
Mainmark technologies that reduce the costs of subsidence treatment
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.
Fast, cost effective & non-invasive solutions that help reduce the cost of subsidence remediation
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 subsidence treatments and reducing underpinning costs
Our dedicated team of experts is committed to understanding your unique needs and objectives, working closely with you to develop and execute.
Fast
Our technologies are installed quickly and can be walked on soon after.
Environmentally inert
We use safe materials that are non-toxic and do not leach into the environment or affect the treated area.
Non-invasive
Our solutions are surgical in nature, causing minimal disruption to you or your family.

Cost-effective
Compared to other solutions, our technologies cost significantly less.
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.

underpinning cost
At the heart of our journey lies the trust of thousands of businesses worldwide, reflected in the numbers that drive us forward.
How much does underpinning cost?

If you’ve discovered subsidence in your home, one of the first things you’ve probably wondered is how much remediation methods, such as underpinning, will cost you.
When calculating the price of underpinning for a residential home, the numbers can quickly go up, but the good news is that Mainmark’s more modern alternatives, resin- and cementitious grout-injection techniques, may also be suitable for saving your home and saving you money.
Depending on the method used, underpinning costs can vary. Here are some rough estimates for subsidence treatment for an average three-bedroom terraced house*:
Underpinning – mass concrete: £13,000
Underpinning – piling: £23,000
Mainmark’s resin injection: £7,500
Of course, there are additional underpinning costs to consider, particularly with the more disruptive mass concrete or piling methods:
Inspections, surveys and building control applications
Potential legal fees for party wall agreements if you live in an attached or semi-detached property
Accommodation for your family while the work is carried out
Re-landscaping around your home after the underpinning is complete
The disruption to your everyday family life
Mainmark’s technologies help you to avoid the majority of these extra costs. Since the work is carried out quickly and with minimal disruption, this minimises the expense, as well as the stress and inconvenience.
*The above costs are averages, based on October 2023 prices and are for comparable like-for-like results.
How Mainmark helps to avoid high underpinning costs

Traditional underpinning costs are high because mass concrete and piling are messy projects that involve digging out the ground from under the foundations of your home. Mainmark’s Teretek® and JOG computer-controlled grouting techniques for dealing with subsidence take a much less invasive – and much more cost-effective – approach.
Our ground engineers will drill small holes (about 16mm in diameter) to the ground under your home’s foundations, and sometimes the floors, and then inject our proprietary resin or grout formulations. The technologies can:
Fill the voids in the soil underneath your home – Helping to support the foundation
Gently lift the house – Bringing your home back to level
Improve the soil – Increasing ground load-bearing capacity and mitigating liquefaction under your home.
The process is quick and unintrusive and can often be completed in a day, and there’s no need for your family to vacate your home while work is being carried out.
Once the project is completed, minor repairs may be necessary, such as filling in any holes drilled in the floor and repairing any cracks or other damage caused by the subsidence.
Mainmark technologies that reduce the costs of subsidence treatment
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.
Fast, cost effective & non-invasive solutions that help reduce the cost of subsidence remediation
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 subsidence treatments and reducing underpinning costs
Our dedicated team of experts is committed to understanding your unique needs and objectives, working closely with you to develop and execute.
Fast
Our technologies are installed quickly and can be walked on soon after.
Environmentally inert
We use safe materials that are non-toxic and do not leach into the environment or affect the treated area.
Non-invasive
Our solutions are surgical in nature, causing minimal disruption to you or your family.

Cost-effective
Compared to other solutions, our technologies cost significantly less.
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.

underpinning cost
At the heart of our journey lies the trust of thousands of businesses worldwide, reflected in the numbers that drive us forward.
How much does underpinning cost?

If you’ve discovered subsidence in your home, one of the first things you’ve probably wondered is how much remediation methods, such as underpinning, will cost you.
When calculating the price of underpinning for a residential home, the numbers can quickly go up, but the good news is that Mainmark’s more modern alternatives, resin- and cementitious grout-injection techniques, may also be suitable for saving your home and saving you money.
Depending on the method used, underpinning costs can vary. Here are some rough estimates for subsidence treatment for an average three-bedroom terraced house*:
Underpinning – mass concrete: £13,000
Underpinning – piling: £23,000
Mainmark’s resin injection: £7,500
Of course, there are additional underpinning costs to consider, particularly with the more disruptive mass concrete or piling methods:
Inspections, surveys and building control applications
Potential legal fees for party wall agreements if you live in an attached or semi-detached property
Accommodation for your family while the work is carried out
Re-landscaping around your home after the underpinning is complete
The disruption to your everyday family life
Mainmark’s technologies help you to avoid the majority of these extra costs. Since the work is carried out quickly and with minimal disruption, this minimises the expense, as well as the stress and inconvenience.
*The above costs are averages, based on October 2023 prices and are for comparable like-for-like results.
How Mainmark helps to avoid high underpinning costs

Traditional underpinning costs are high because mass concrete and piling are messy projects that involve digging out the ground from under the foundations of your home. Mainmark’s Teretek® and JOG computer-controlled grouting techniques for dealing with subsidence take a much less invasive – and much more cost-effective – approach.
Our ground engineers will drill small holes (about 16mm in diameter) to the ground under your home’s foundations, and sometimes the floors, and then inject our proprietary resin or grout formulations. The technologies can:
Fill the voids in the soil underneath your home – Helping to support the foundation
Gently lift the house – Bringing your home back to level
Improve the soil – Increasing ground load-bearing capacity and mitigating liquefaction under your home.
The process is quick and unintrusive and can often be completed in a day, and there’s no need for your family to vacate your home while work is being carried out.
Once the project is completed, minor repairs may be necessary, such as filling in any holes drilled in the floor and repairing any cracks or other damage caused by the subsidence.
Mainmark technologies that reduce the costs of subsidence treatment
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.
Fast, cost effective & non-invasive solutions that help reduce the cost of subsidence remediation
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 subsidence treatments and reducing underpinning costs
Our dedicated team of experts is committed to understanding your unique needs and objectives, working closely with you to develop and execute.
Fast
Our technologies are installed quickly and can be walked on soon after.
Environmentally inert
We use safe materials that are non-toxic and do not leach into the environment or affect the treated area.
Non-invasive
Our solutions are surgical in nature, causing minimal disruption to you or your family.

Cost-effective
Compared to other solutions, our technologies cost significantly less.
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.