
5.0
Subsidence Repair Without Traditional Underpinning
Cracks in Your Walls? Concerned About Subsidence?
Mainmark provides fast, non-invasive subsidence repair solutions that address the cause of foundation movement without the disruption of traditional underpinning. Trusted by homeowners, insurers and property professionals across the UK.
Why Choose Mainmark?
35+ years of ground engineering expertise
35,000+ successful projects completed
Trusted by insurers, surveyors and structural engineers
Alternative to disruptive concrete underpinning
50-year product warranty
Concerned about cracks, sloping floors or signs of movement?
Mainmark provides fast, non-invasive subsidence repair solutions that address the cause of foundation movement without the disruption of traditional underpinning. Trusted by homeowners, insurers and property professionals across the UK.
Our specialists will:
Assess the symptoms
Identify the likely cause
Explain your repair options
Provide a tailored recommendation


Common Signs of Subsidence
Mainmark provides fast, non-invasive subsidence repair solutions that address the cause of foundation movement without the disruption of traditional underpinning. Trusted by homeowners, insurers and property professionals across the UK.
If you've noticed any of the following, it may be time to arrange a professional assessment:
Cracks in internal or external walls
Cracks around doors and windows
Doors and windows sticking unexpectedly
Sloping or uneven floors
Gaps appearing between walls and ceilings
Cracked brickwork
Sinking patios, pathways or driveways
Subsidence rarely improves on its own. Early assessment can help reduce repair costs and prevent further movement.
Repair Subsidence Without Major Excavation
For decades, traditional underpinning was considered the standard solution for subsidence.
Today, many properties can be repaired using Mainmark's proven resin injection technology, which strengthens the ground beneath foundations through small injection points rather than extensive excavation.

Subsidence repair specialist
Mainmark provides fast, non-invasive subsidence repair solutions that address the cause of foundation movement without the disruption of traditional underpinning. Trusted by homeowners, insurers and property professionals across the UK.
Resin and screw piles
Traditional Underpinning
Fast
Cost Effective
Minimum Disruption
Non-invasive
Carbon Savings
Fix the problem
How Our Subsidence Repair Solution Works

Step 1. Assess
Our specialists inspect the property and review the signs of movement.

Step 2. Investigate
Ground conditions and structural symptoms are evaluated to determine the most appropriate solution.

Step 3. Treat
Resin is injected through small holes to improve the ground beneath the structure.

Step 4. Monitor
Works are verified and documented to ensure the required outcomes have been achieved.
Trusted by Homeowners, Insurers and Property Professionals
Mainmark uses a 2 in 1 non-invasive underpinning solution to fix subsidence. Our structural repair solution only strengthens the ground under the foundation but lifts the structure back to level.
Mainmark regularly works with:
Homeowners
Insurers
Loss adjusters
Surveyors
Structural engineers
Property owners and managers
Our experience and proven methodology provide confidence that the root cause of the issue has been properly identified and addressed.

Fast
Our technologies have fast curing times and treated areas can be used immediately or without the delays compared to traditional repair methods.
Environmentally inert
Our technologies use an inert material that is non-toxic and does not leach into the environment or affect the treated area.
Non-invasive
Our solutions are of surgical nature compared to traditional methods.
Cost-effective
Compared to traditional methods, our solutions are more cost-effective, with minimal disruption to the area.
Subsidence Repair Projects:
A diverse group of passionate professionals, each bringing unique skills and experiences to drive innovation and excellence in every project we undertake.
Victorian Home, London
Challenge: Signs of foundation movement affecting a Victorian property.
Solution: Ground strengthening using Mainmark's resin injection technology.
Outcome: Property support improved with minimal disruption to occupants.
Semi-Detached Bungalow, Cambridgeshire
Challenge: Ongoing subsidence causing concern for the homeowner.
Solution: Targeted ground improvement beneath affected areas.
Outcome: Successful remediation without traditional underpinning.
Macclesfield homeowner JOG
Challenge: Historic property requiring a sensitive approach.
Solution: Non-invasive ground improvement solution.
Outcome: Subsidence addressed without extensive excavation.
Settlement vs Subsidence: What's the Difference?
Many property owners use the terms interchangeably, but they are different issues.
Settlement is the natural compression of ground beneath a building after construction. It is often gradual and may not indicate a serious structural issue.
Typical signs include:
Small hairline cracks
Minor cosmetic movement
Slight unevenness
Subsidence occurs when the ground beneath a property moves downward, reducing support to foundations and causing structural movement.
Typical signs include:
Larger cracks in walls
Sticking windows and doors
Sloping floors
Structural movement
A professional assessment can help determine which issue is affecting your property.

Why Property Owners Choose Mainmark
Over 35 Years of Experience - Delivering ground engineering solutions worldwide since 1989.
Non-Invasive Solutions - Designed to minimise disruption to your property and daily life.
Fast Turnaround - Many projects can be completed significantly quicker than traditional underpinning methods.
Bespoke Assessment - Every property and every ground condition is different.
Long-Term Confidence – Teretek backed by an industry-leading warranty.
Frequently Asked Questions
What are the signs of subsidence?
Common signs include cracking walls, sticking doors and windows, uneven floors and visible movement around the property.
Can subsidence be repaired without underpinning?
Enter your answer
Do cracks in walls always mean subsidence?
Enter your answer
Will my insurance cover subsidence repairs?
Enter your answer
How long does subsidence repair take?
Enter your answer
Can I stay in my property during the works?
Enter your answer

Concerned About Cracks, Subsidence or Foundation Movement?
Don't wait for the problem to become worse.
Our specialists can assess your property, explain what's causing the movement and recommend the most appropriate solution.
Expert assessment
Insurance-friendly solutions
Alternative to underpinning
Minimal disruption
Fast response
Complete the form and a member of our team will be in touch to arrange your assessment.

5.0
Subsidence Repair Without Traditional Underpinning
Cracks in Your Walls? Concerned About Subsidence?
Mainmark provides fast, non-invasive subsidence repair solutions that address the cause of foundation movement without the disruption of traditional underpinning. Trusted by homeowners, insurers and property professionals across the UK.
Why Choose Mainmark?
35+ years of ground engineering expertise
35,000+ successful projects completed
Trusted by insurers, surveyors and structural engineers
Alternative to disruptive concrete underpinning
50-year product warranty
Concerned about cracks, sloping floors or signs of movement?
Mainmark provides fast, non-invasive subsidence repair solutions that address the cause of foundation movement without the disruption of traditional underpinning. Trusted by homeowners, insurers and property professionals across the UK.
Our specialists will:
Assess the symptoms
Identify the likely cause
Explain your repair options
Provide a tailored recommendation


Common Signs of Subsidence
Mainmark provides fast, non-invasive subsidence repair solutions that address the cause of foundation movement without the disruption of traditional underpinning. Trusted by homeowners, insurers and property professionals across the UK.
If you've noticed any of the following, it may be time to arrange a professional assessment:
Cracks in internal or external walls
Cracks around doors and windows
Doors and windows sticking unexpectedly
Sloping or uneven floors
Gaps appearing between walls and ceilings
Cracked brickwork
Sinking patios, pathways or driveways
Subsidence rarely improves on its own. Early assessment can help reduce repair costs and prevent further movement.
Repair Subsidence Without Major Excavation
For decades, traditional underpinning was considered the standard solution for subsidence.
Today, many properties can be repaired using Mainmark's proven resin injection technology, which strengthens the ground beneath foundations through small injection points rather than extensive excavation.

Subsidence repair specialist
Mainmark provides fast, non-invasive subsidence repair solutions that address the cause of foundation movement without the disruption of traditional underpinning. Trusted by homeowners, insurers and property professionals across the UK.
Resin and screw piles
Traditional Underpinning
Fast
Cost Effective
Minimum Disruption
Non-invasive
Carbon Savings
Fix the problem
How Our Subsidence Repair Solution Works

Step 1. Assess
Our specialists inspect the property and review the signs of movement.

Step 2. Investigate
Ground conditions and structural symptoms are evaluated to determine the most appropriate solution.

Step 3. Treat
Resin is injected through small holes to improve the ground beneath the structure.

Step 4. Monitor
Works are verified and documented to ensure the required outcomes have been achieved.
Trusted by Homeowners, Insurers and Property Professionals
Mainmark uses a 2 in 1 non-invasive underpinning solution to fix subsidence. Our structural repair solution only strengthens the ground under the foundation but lifts the structure back to level.
Mainmark regularly works with:
Homeowners
Insurers
Loss adjusters
Surveyors
Structural engineers
Property owners and managers
Our experience and proven methodology provide confidence that the root cause of the issue has been properly identified and addressed.

Fast
Our technologies have fast curing times and treated areas can be used immediately or without the delays compared to traditional repair methods.
Environmentally inert
Our technologies use an inert material that is non-toxic and does not leach into the environment or affect the treated area.
Non-invasive
Our solutions are of surgical nature compared to traditional methods.
Cost-effective
Compared to traditional methods, our solutions are more cost-effective, with minimal disruption to the area.
Subsidence Repair Projects:
A diverse group of passionate professionals, each bringing unique skills and experiences to drive innovation and excellence in every project we undertake.
Victorian Home, London
Challenge: Signs of foundation movement affecting a Victorian property.
Solution: Ground strengthening using Mainmark's resin injection technology.
Outcome: Property support improved with minimal disruption to occupants.
Semi-Detached Bungalow, Cambridgeshire
Challenge: Ongoing subsidence causing concern for the homeowner.
Solution: Targeted ground improvement beneath affected areas.
Outcome: Successful remediation without traditional underpinning.
Macclesfield homeowner JOG
Challenge: Historic property requiring a sensitive approach.
Solution: Non-invasive ground improvement solution.
Outcome: Subsidence addressed without extensive excavation.
Settlement vs Subsidence: What's the Difference?
Many property owners use the terms interchangeably, but they are different issues.
Settlement is the natural compression of ground beneath a building after construction. It is often gradual and may not indicate a serious structural issue.
Typical signs include:
Small hairline cracks
Minor cosmetic movement
Slight unevenness
Subsidence occurs when the ground beneath a property moves downward, reducing support to foundations and causing structural movement.
Typical signs include:
Larger cracks in walls
Sticking windows and doors
Sloping floors
Structural movement
A professional assessment can help determine which issue is affecting your property.

Why Property Owners Choose Mainmark
Over 35 Years of Experience - Delivering ground engineering solutions worldwide since 1989.
Non-Invasive Solutions - Designed to minimise disruption to your property and daily life.
Fast Turnaround - Many projects can be completed significantly quicker than traditional underpinning methods.
Bespoke Assessment - Every property and every ground condition is different.
Long-Term Confidence – Teretek backed by an industry-leading warranty.
Frequently Asked Questions
What are the signs of subsidence?
Common signs include cracking walls, sticking doors and windows, uneven floors and visible movement around the property.
Can subsidence be repaired without underpinning?
Enter your answer
Do cracks in walls always mean subsidence?
Enter your answer
Will my insurance cover subsidence repairs?
Enter your answer
How long does subsidence repair take?
Enter your answer
Can I stay in my property during the works?
Enter your answer

Concerned About Cracks, Subsidence or Foundation Movement?
Don't wait for the problem to become worse.
Our specialists can assess your property, explain what's causing the movement and recommend the most appropriate solution.
Expert assessment
Insurance-friendly solutions
Alternative to underpinning
Minimal disruption
Fast response
Complete the form and a member of our team will be in touch to arrange your assessment.

5.0
Subsidence Repair Without Traditional Underpinning
Cracks in Your Walls? Concerned About Subsidence?
Mainmark provides fast, non-invasive subsidence repair solutions that address the cause of foundation movement without the disruption of traditional underpinning. Trusted by homeowners, insurers and property professionals across the UK.
Why Choose Mainmark?
35+ years of ground engineering expertise
35,000+ successful projects completed
Trusted by insurers, surveyors and structural engineers
Alternative to disruptive concrete underpinning
50-year product warranty
Concerned about cracks, sloping floors or signs of movement?
Mainmark provides fast, non-invasive subsidence repair solutions that address the cause of foundation movement without the disruption of traditional underpinning. Trusted by homeowners, insurers and property professionals across the UK.
Our specialists will:
Assess the symptoms
Identify the likely cause
Explain your repair options
Provide a tailored recommendation


Common Signs of Subsidence
Mainmark provides fast, non-invasive subsidence repair solutions that address the cause of foundation movement without the disruption of traditional underpinning. Trusted by homeowners, insurers and property professionals across the UK.
If you've noticed any of the following, it may be time to arrange a professional assessment:
Cracks in internal or external walls
Cracks around doors and windows
Doors and windows sticking unexpectedly
Sloping or uneven floors
Gaps appearing between walls and ceilings
Cracked brickwork
Sinking patios, pathways or driveways
Subsidence rarely improves on its own. Early assessment can help reduce repair costs and prevent further movement.
Repair Subsidence Without Major Excavation
For decades, traditional underpinning was considered the standard solution for subsidence.
Today, many properties can be repaired using Mainmark's proven resin injection technology, which strengthens the ground beneath foundations through small injection points rather than extensive excavation.

Subsidence repair specialist
Mainmark provides fast, non-invasive subsidence repair solutions that address the cause of foundation movement without the disruption of traditional underpinning. Trusted by homeowners, insurers and property professionals across the UK.
Resin and screw piles
Traditional Underpinning
Fast
Cost Effective
Minimum Disruption
Non-invasive
Carbon Savings
Fix the problem
How Our Subsidence Repair Solution Works

Step 1. Assess
Our specialists inspect the property and review the signs of movement.

Step 2. Investigate
Ground conditions and structural symptoms are evaluated to determine the most appropriate solution.

Step 3. Treat
Resin is injected through small holes to improve the ground beneath the structure.

Step 4. Monitor
Works are verified and documented to ensure the required outcomes have been achieved.
Trusted by Homeowners, Insurers and Property Professionals
With over 30 years of experience treating subsidence, we work closely with local structural engineers around the UK to ensure your home is lifted gently without damaging the building or landscaping.
Our solutions are covered by a 50-year guarantee, providing peace of mind for your home’s long-term safety and stability.
Mainmark use a 2 in 1 non-invasive underpinning solution to fix subsidence.
Mainmark regularly works with:
Homeowners
Insurers
Loss adjusters
Surveyors
Structural engineers
Property owners and managers
Our experience and proven methodology provide confidence that the root cause of the issue has been properly identified and addressed.

Fast
Our technologies have fast curing times and treated areas can be used immediately or without the delays compared to traditional repair methods.
Environmentally inert
Our technologies use an inert material that is non-toxic and does not leach into the environment or affect the treated area.
Non-invasive
Our solutions are of surgical nature compared to traditional methods.
Cost-effective
Compared to traditional methods, our solutions are more cost-effective, with minimal disruption to the area.
Subsidence Repair Projects:
A diverse group of passionate professionals, each bringing unique skills and experiences to drive innovation and excellence in every project we undertake.
Victorian Home, London
Challenge: Signs of foundation movement affecting a Victorian property.
Solution: Ground strengthening using Mainmark's resin injection technology.
Outcome: Property support improved with minimal disruption to occupants.
Semi-Detached Bungalow, Cambridgeshire
Challenge: Ongoing subsidence causing concern for the homeowner.
Solution: Targeted ground improvement beneath affected areas.
Outcome: Successful remediation without traditional underpinning.
Macclesfield homeowner JOG
Challenge: Historic property requiring a sensitive approach.
Solution: Non-invasive ground improvement solution.
Outcome: Subsidence addressed without extensive excavation.
Settlement vs Subsidence: What's the Difference?
Many property owners use the terms interchangeably, but they are different issues.
Settlement is the natural compression of ground beneath a building after construction. It is often gradual and may not indicate a serious structural issue.
Typical signs include:
Small hairline cracks
Minor cosmetic movement
Slight unevenness
Subsidence occurs when the ground beneath a property moves downward, reducing support to foundations and causing structural movement.
Typical signs include:
Larger cracks in walls
Sticking windows and doors
Sloping floors
Structural movement
A professional assessment can help determine which issue is affecting your property.

Why Property Owners Choose Mainmark
Over 35 Years of Experience - Delivering ground engineering solutions worldwide since 1989.
Non-Invasive Solutions - Designed to minimise disruption to your property and daily life.
Fast Turnaround - Many projects can be completed significantly quicker than traditional underpinning methods.
Bespoke Assessment - Every property and every ground condition is different.
Long-Term Confidence – Teretek backed by an industry-leading warranty.
Frequently Asked Questions
What are the signs of subsidence?
Common signs include cracking walls, sticking doors and windows, uneven floors and visible movement around the property.
Can subsidence be repaired without underpinning?
Enter your answer
Do cracks in walls always mean subsidence?
Enter your answer
Will my insurance cover subsidence repairs?
Enter your answer
How long does subsidence repair take?
Enter your answer
Can I stay in my property during the works?
Enter your answer

Concerned About Cracks, Subsidence or Foundation Movement?
Don't wait for the problem to become worse.
Our specialists can assess your property, explain what's causing the movement and recommend the most appropriate solution.
Expert assessment
Insurance-friendly solutions
Alternative to underpinning
Minimal disruption
Fast response
Complete the form and a member of our team will be in touch to arrange your assessment.








