
Signs of subsidence
At the heart of our journey lies the trust of thousands of businesses worldwide, reflected in the numbers that drive us forward.
What are the signs of subsidence?

Common signs of subsidence include cracks in walls, sticking doors and windows and uneven floors. If you’ve noticed any signs of subsidence in your home, it’s important to get expert advice as soon as possible. Ignoring them will only allow the problem – and any potential damage to your home – to get worse.
Mainmark offers quick, reliable and cost-effective subsidence solutions to treat subsidence in residential homes. Our team can carry out surveys to:
Examine the signs of subsidence
Diagnose the problem
Advise on the next steps
What are the likely signs of foundation subsidence?

Our Teretek® resin injection solution and JOG computer-controlled grouting technologies address the root causes of subsidence by improving the ground the structure is built on, giving you peace of mind about your home’s long-term safety and stability.
Using cementitious grout or an environmentally inert resin precisely injected into the ground, we fill in any voids under the foundations of your home. This strengthens the ground underneath the house, re-levels it if needed and prevents further damage. Subsidence treatment using our methods can usually be completed in a day. After that, the original signs of subsidence, such as cracks in walls or damaged doorframes, may require additional repair, cosmetic improvements and redecoration.
Recognising the signs of subsidence

Subsidence occurs when the ground beneath your home sinks, settles or moves. Identifying the signs of subsidence and dealing with the problem as soon as possible can help prevent any additional damage to your home. Signs of subsidence include:
Cracks in walls, floors or ceilings – These cracks are usually at least 3mm thick. In walls, they’re likely to be wider at the top.
Doors and windows sticking – As walls move, door and window frames may become distorted, causing windows and doors to stick or not open and close properly.
Uneven floors – Because subsidence can cause the ground under your home to become uneven, it can lead to sloped or sinking floors.
Extensions or conservatory subsidence and separating – If your home has an extension or a conservatory examine the joints between the extension and the main building. If it looks as if the extension is pulling away, it may be a sign of subsidence.
Ripples or creases in wallpaper – When wallpaper acts up, homeowners often think it’s caused by damp, but if there are no signs of moisture, it may mean that the walls are moving due to subsidence.
Leaning of the house – As the foundation shifts, the whole house may lean to one side.
Bay windows – The historical misconception that bay windows are lighter structural elements that require a shallower foundation than the main house, leads to bay windows in older homes being particularly vulnerable to subsidence.
Mainmark technologies for treatment when the signs of subsidence appear
Our dedicated team of experts is committed to understanding your unique needs and objectives, working closely with you to develop and execute.

Teretek® – Subsidence signs remediation through resin injection
Teretek® is an engineered solution for ground improvement and re-levelling subsided residential homes, using a plural component, expanding polyurethane resin. Teretek® works in a way similar to keyhole surgery. Small holes are drilled under the foundation in order for Mainmark’s proprietary, environmentally inert resin to be injected under the house foundation, improving the stability of the ground and re-levelling the home.

Subsidence signs remediation with JOG computer-controlled grouting
JOG computer-controlled grouting is a multi-point injection technique. This technology typically uses cementitious grout to re-level structures, including residential homes. This means that cementitious grout is injected under the foundations of your home, using computers to accurately control the injection amounts in the various predetermined locations.
Fast, cost effective & non-invasive solutions to treat signs of subsidence
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 foundation subsidence treatments
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.

Signs of subsidence
At the heart of our journey lies the trust of thousands of businesses worldwide, reflected in the numbers that drive us forward.
What are the signs of subsidence?

Common signs of subsidence include cracks in walls, sticking doors and windows and uneven floors. If you’ve noticed any signs of subsidence in your home, it’s important to get expert advice as soon as possible. Ignoring them will only allow the problem – and any potential damage to your home – to get worse.
Mainmark offers quick, reliable and cost-effective subsidence solutions to treat subsidence in residential homes. Our team can carry out surveys to:
Examine the signs of subsidence
Diagnose the problem
Advise on the next steps
What are the likely signs of foundation subsidence?

Our Teretek® resin injection solution and JOG computer-controlled grouting technologies address the root causes of subsidence by improving the ground the structure is built on, giving you peace of mind about your home’s long-term safety and stability.
Using cementitious grout or an environmentally inert resin precisely injected into the ground, we fill in any voids under the foundations of your home. This strengthens the ground underneath the house, re-levels it if needed and prevents further damage. Subsidence treatment using our methods can usually be completed in a day. After that, the original signs of subsidence, such as cracks in walls or damaged doorframes, may require additional repair, cosmetic improvements and redecoration.
Recognising the signs of subsidence

Subsidence occurs when the ground beneath your home sinks, settles or moves. Identifying the signs of subsidence and dealing with the problem as soon as possible can help prevent any additional damage to your home. Signs of subsidence include:
Cracks in walls, floors or ceilings – These cracks are usually at least 3mm thick. In walls, they’re likely to be wider at the top.
Doors and windows sticking – As walls move, door and window frames may become distorted, causing windows and doors to stick or not open and close properly.
Uneven floors – Because subsidence can cause the ground under your home to become uneven, it can lead to sloped or sinking floors.
Extensions or conservatory subsidence and separating – If your home has an extension or a conservatory examine the joints between the extension and the main building. If it looks as if the extension is pulling away, it may be a sign of subsidence.
Ripples or creases in wallpaper – When wallpaper acts up, homeowners often think it’s caused by damp, but if there are no signs of moisture, it may mean that the walls are moving due to subsidence.
Leaning of the house – As the foundation shifts, the whole house may lean to one side.
Bay windows – The historical misconception that bay windows are lighter structural elements that require a shallower foundation than the main house, leads to bay windows in older homes being particularly vulnerable to subsidence.
Mainmark technologies for treatment when the signs of subsidence appear
Our dedicated team of experts is committed to understanding your unique needs and objectives, working closely with you to develop and execute.

Teretek® – Subsidence signs remediation through resin injection
Teretek® is an engineered solution for ground improvement and re-levelling subsided residential homes, using a plural component, expanding polyurethane resin. Teretek® works in a way similar to keyhole surgery. Small holes are drilled under the foundation in order for Mainmark’s proprietary, environmentally inert resin to be injected under the house foundation, improving the stability of the ground and re-levelling the home.

Subsidence signs remediation with JOG computer-controlled grouting
JOG computer-controlled grouting is a multi-point injection technique. This technology typically uses cementitious grout to re-level structures, including residential homes. This means that cementitious grout is injected under the foundations of your home, using computers to accurately control the injection amounts in the various predetermined locations.
Fast, cost effective & non-invasive solutions to treat signs of subsidence
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 foundation subsidence treatments
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.

Signs of subsidence
At the heart of our journey lies the trust of thousands of businesses worldwide, reflected in the numbers that drive us forward.
What are the signs of subsidence?

Common signs of subsidence include cracks in walls, sticking doors and windows and uneven floors. If you’ve noticed any signs of subsidence in your home, it’s important to get expert advice as soon as possible. Ignoring them will only allow the problem – and any potential damage to your home – to get worse.
Mainmark offers quick, reliable and cost-effective subsidence solutions to treat subsidence in residential homes. Our team can carry out surveys to:
Examine the signs of subsidence
Diagnose the problem
Advise on the next steps
What are the likely signs of foundation subsidence?

Our Teretek® resin injection solution and JOG computer-controlled grouting technologies address the root causes of subsidence by improving the ground the structure is built on, giving you peace of mind about your home’s long-term safety and stability.
Using cementitious grout or an environmentally inert resin precisely injected into the ground, we fill in any voids under the foundations of your home. This strengthens the ground underneath the house, re-levels it if needed and prevents further damage. Subsidence treatment using our methods can usually be completed in a day. After that, the original signs of subsidence, such as cracks in walls or damaged doorframes, may require additional repair, cosmetic improvements and redecoration.
Recognising the signs of subsidence

Subsidence occurs when the ground beneath your home sinks, settles or moves. Identifying the signs of subsidence and dealing with the problem as soon as possible can help prevent any additional damage to your home. Signs of subsidence include:
Cracks in walls, floors or ceilings – These cracks are usually at least 3mm thick. In walls, they’re likely to be wider at the top.
Doors and windows sticking – As walls move, door and window frames may become distorted, causing windows and doors to stick or not open and close properly.
Uneven floors – Because subsidence can cause the ground under your home to become uneven, it can lead to sloped or sinking floors.
Extensions or conservatory subsidence and separating – If your home has an extension or a conservatory examine the joints between the extension and the main building. If it looks as if the extension is pulling away, it may be a sign of subsidence.
Ripples or creases in wallpaper – When wallpaper acts up, homeowners often think it’s caused by damp, but if there are no signs of moisture, it may mean that the walls are moving due to subsidence.
Leaning of the house – As the foundation shifts, the whole house may lean to one side.
Bay windows – The historical misconception that bay windows are lighter structural elements that require a shallower foundation than the main house, leads to bay windows in older homes being particularly vulnerable to subsidence.
Mainmark technologies for treatment when the signs of subsidence appear
Our dedicated team of experts is committed to understanding your unique needs and objectives, working closely with you to develop and execute.

Teretek® – Subsidence signs remediation through resin injection
Teretek® is an engineered solution for ground improvement and re-levelling subsided residential homes, using a plural component, expanding polyurethane resin. Teretek® works in a way similar to keyhole surgery. Small holes are drilled under the foundation in order for Mainmark’s proprietary, environmentally inert resin to be injected under the house foundation, improving the stability of the ground and re-levelling the home.

Subsidence signs remediation with JOG computer-controlled grouting
JOG computer-controlled grouting is a multi-point injection technique. This technology typically uses cementitious grout to re-level structures, including residential homes. This means that cementitious grout is injected under the foundations of your home, using computers to accurately control the injection amounts in the various predetermined locations.
Fast, cost effective & non-invasive solutions to treat signs of subsidence
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 foundation subsidence treatments
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.