Screw Pile

We specialise in designing and installing screw pile underpinning solutions, a modern, efficient, and cost-effective method to stabilise structures affected by subsidence.

What is screw pile underpinning?

A Mainmark vehicle outside a property to deliver slab lifting services

Screw piling is an advanced technique that provides a clear, faster and more sustainable alternative to traditional underpinning solutions.

Screw piles (also known as helical piles) are high-strength steel shafts with helical plates that are screwed into the ground using specialised hydraulic equipment. They are installed to a predetermined depth and torque to reach stable ground, transferring the weight of the building from weak surface soils to stronger layers below.

The piles are then connected to the foundations with custom-engineered brackets, which provide immediate load-bearing support and allows precise lifting or re-levelling of the structure if required.

Screw piling is ideal for stabilising structures on clay soils with a high Plasticity Index as this type of ground is prone to significant shrink-swell movement.

This method is also ideal for use on peat because the piles can be screwed through the soft upper layers and down into firm ground below to create reliable structural support.

What are the benefits of screw piling?

Gap between a concrete floor slab and wall showing signs of ground movement, illustrating the need for slab lifting repair

Screw piling offers numerous benefits:

• Minimal-excavation installation with no spoil, no mass concrete, and no need for large machinery

• Suitable for various ground conditions including soft and peaty soils

• Site-specific pile design based on detailed geotechnical assessment

• Full compliance with Eurocode 7 (EN1997-1) and UK certification standards, including BSI, BBA, CE, and NHBC

• Supported by a 20-year workmanship and material warranty

• Optional anti-heave sleeves for shallower applications

What is Mainmark's screw pile installation process?

We undertake a geotechnical investigation to establish the soil type and location of underground services.

  1. Design the screw pile layout, considering the ground conditions, location and loads on foundations to be underpinned.

  2. Dig a series of pits adjacent to the building to locate the footings requiring support.

  3. We then install a screw pile into the firm ground below; torque readings confirm correct depth.

  4. A specially designed bracket is installed on top of the screw pile and slotted beneath the footing.

  5. A jacking system is used to raise the bracket, transferring the load to the new screw piles. In some instances, this can be used to lift the building back in position.

  6. Once the load has been transferred to the screw piles and the structure is stable, the bracket is secured and jack removed.

  7. The excavated area is then backfilled and rectified.

Think you need screw pile underpinning? Our dedicated team of experts is committed to understanding your unique needs and objectives, working closely with you to develop and execute.

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.

Modern glass art gallery re-supported and re-levelled by Mainmark using advanced ground engineering solutions
Art Gallery Re-supported and Re-levelled
Mainmark truck parked beside a historic listed building, where resin injection was used to treat foundation subsidence.
Resin injection ground strengthening instead of underpinning for historic building.
Mainmark Completes Subsidence and Heave Re-Levelling Across Residential Housing Estate
Specialised Resin and High-Strength Concrete Used to Seal Damaged Groundwater Pit

Delivering exceptional outcomes to our
clients, partners and team

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

Technical expertise icon representing Mainmark UK’s advanced ground engineering technologies and experienced slab lifting engineers

Technical

The combination of our proven ground improvement technologies and our experienced ground engineers enables us to re-level and re-support buildings affected by subsidence across various sectors.

Consultative approach icon representing Mainmark UK’s problem-solving expertise in slab lifting solutions

Consultative

Our problem-solving approach and recommendation of ground engineering solutions sets us apart from the competition. The complexity of ground improvement requires a range of state-of-the-art technologies to meet both project and client requirements.

Trusted

We are trusted to present effective and creative solutions to many types of ground engineering problems in a wide range of sectors, including residential, industrial, commercial, civil engineering and infrastructure.

Get in Touch

Worried about wall cracks, ceiling cracks, or possible subsidence? Mainmark Ireland’s specialists are here to help. We’ll inspect, assess, and provide the most effective repair plan for your property.

Location

Mainmark Ground Engineering (UK) Ltd
3rd Floor
40 Mespil Road
Dublin 4
D04 C2NA

Screw Pile

We specialise in designing and installing screw pile underpinning solutions, a modern, efficient, and cost-effective method to stabilise structures affected by subsidence.

What is screw pile underpinning?

A Mainmark vehicle outside a property to deliver slab lifting services

Screw piling is an advanced technique that provides a clear, faster and more sustainable alternative to traditional underpinning solutions.

Screw piles (also known as helical piles) are high-strength steel shafts with helical plates that are screwed into the ground using specialised hydraulic equipment. They are installed to a predetermined depth and torque to reach stable ground, transferring the weight of the building from weak surface soils to stronger layers below.

The piles are then connected to the foundations with custom-engineered brackets, which provide immediate load-bearing support and allows precise lifting or re-levelling of the structure if required.

Screw piling is ideal for stabilising structures on clay soils with a high Plasticity Index as this type of ground is prone to significant shrink-swell movement.

This method is also ideal for use on peat because the piles can be screwed through the soft upper layers and down into firm ground below to create reliable structural support.

What are the benefits of screw piling?

Gap between a concrete floor slab and wall showing signs of ground movement, illustrating the need for slab lifting repair

Screw piling offers numerous benefits:

• Minimal-excavation installation with no spoil, no mass concrete, and no need for large machinery

• Suitable for various ground conditions including soft and peaty soils

• Site-specific pile design based on detailed geotechnical assessment

• Full compliance with Eurocode 7 (EN1997-1) and UK certification standards, including BSI, BBA, CE, and NHBC

• Supported by a 20-year workmanship and material warranty

• Optional anti-heave sleeves for shallower applications

What is Mainmark's screw pile installation process?

We undertake a geotechnical investigation to establish the soil type and location of underground services.

  1. Design the screw pile layout, considering the ground conditions, location and loads on foundations to be underpinned.

  2. Dig a series of pits adjacent to the building to locate the footings requiring support.

  3. We then install a screw pile into the firm ground below; torque readings confirm correct depth.

  4. A specially designed bracket is installed on top of the screw pile and slotted beneath the footing.

  5. A jacking system is used to raise the bracket, transferring the load to the new screw piles. In some instances, this can be used to lift the building back in position.

  6. Once the load has been transferred to the screw piles and the structure is stable, the bracket is secured and jack removed.

  7. The excavated area is then backfilled and rectified.

Think you need screw pile underpinning? Our dedicated team of experts is committed to understanding your unique needs and objectives, working closely with you to develop and execute.

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.

Modern glass art gallery re-supported and re-levelled by Mainmark using advanced ground engineering solutions
Art Gallery Re-supported and Re-levelled
Mainmark truck parked beside a historic listed building, where resin injection was used to treat foundation subsidence.
Resin injection ground strengthening instead of underpinning for historic building.
Mainmark Completes Subsidence and Heave Re-Levelling Across Residential Housing Estate
Specialised Resin and High-Strength Concrete Used to Seal Damaged Groundwater Pit

Delivering exceptional outcomes to our
clients, partners and team

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

Technical expertise icon representing Mainmark UK’s advanced ground engineering technologies and experienced slab lifting engineers

Technical

The combination of our proven ground improvement technologies and our experienced ground engineers enables us to re-level and re-support buildings affected by subsidence across various sectors.

Consultative approach icon representing Mainmark UK’s problem-solving expertise in slab lifting solutions

Consultative

Our problem-solving approach and recommendation of ground engineering solutions sets us apart from the competition. The complexity of ground improvement requires a range of state-of-the-art technologies to meet both project and client requirements.

Trusted

We are trusted to present effective and creative solutions to many types of ground engineering problems in a wide range of sectors, including residential, industrial, commercial, civil engineering and infrastructure.

Get in Touch

Worried about wall cracks, ceiling cracks, or possible subsidence? Mainmark Ireland’s specialists are here to help. We’ll inspect, assess, and provide the most effective repair plan for your property.

Location

Mainmark Ground Engineering (UK) Ltd
3rd Floor
40 Mespil Road
Dublin 4
D04 C2NA

Screw Pile

We specialise in designing and installing screw pile underpinning solutions, a modern, efficient, and cost-effective method to stabilise structures affected by subsidence.

What is screw pile underpinning?

A Mainmark vehicle outside a property to deliver slab lifting services

Screw piling is an advanced technique that provides a clear, faster and more sustainable alternative to traditional underpinning solutions.

Screw piles (also known as helical piles) are high-strength steel shafts with helical plates that are screwed into the ground using specialised hydraulic equipment. They are installed to a predetermined depth and torque to reach stable ground, transferring the weight of the building from weak surface soils to stronger layers below.

The piles are then connected to the foundations with custom-engineered brackets, which provide immediate load-bearing support and allows precise lifting or re-levelling of the structure if required.

Screw piling is ideal for stabilising structures on clay soils with a high Plasticity Index as this type of ground is prone to significant shrink-swell movement.

This method is also ideal for use on peat because the piles can be screwed through the soft upper layers and down into firm ground below to create reliable structural support.

What are the benefits of screw piling?

Gap between a concrete floor slab and wall showing signs of ground movement, illustrating the need for slab lifting repair

Screw piling offers numerous benefits:

• Minimal-excavation installation with no spoil, no mass concrete, and no need for large machinery

• Suitable for various ground conditions including soft and peaty soils

• Site-specific pile design based on detailed geotechnical assessment

• Full compliance with Eurocode 7 (EN1997-1) and UK certification standards, including BSI, BBA, CE, and NHBC

• Supported by a 20-year workmanship and material warranty

• Optional anti-heave sleeves for shallower applications

What is Mainmark's screw pile installation process?

We undertake a geotechnical investigation to establish the soil type and location of underground services.

  1. Design the screw pile layout, considering the ground conditions, location and loads on foundations to be underpinned.

  2. Dig a series of pits adjacent to the building to locate the footings requiring support.

  3. We then install a screw pile into the firm ground below; torque readings confirm correct depth.

  4. A specially designed bracket is installed on top of the screw pile and slotted beneath the footing.

  5. A jacking system is used to raise the bracket, transferring the load to the new screw piles. In some instances, this can be used to lift the building back in position.

  6. Once the load has been transferred to the screw piles and the structure is stable, the bracket is secured and jack removed.

  7. The excavated area is then backfilled and rectified.

Think you need screw pile underpinning? Our dedicated team of experts is committed to understanding your unique needs and objectives, working closely with you to develop and execute.

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.

Modern glass art gallery re-supported and re-levelled by Mainmark using advanced ground engineering solutions
Art Gallery Re-supported and Re-levelled
Mainmark truck parked beside a historic listed building, where resin injection was used to treat foundation subsidence.
Resin injection ground strengthening instead of underpinning for historic building.
Mainmark Completes Subsidence and Heave Re-Levelling Across Residential Housing Estate
Specialised Resin and High-Strength Concrete Used to Seal Damaged Groundwater Pit

Delivering exceptional outcomes to our
clients, partners and team

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

Technical expertise icon representing Mainmark UK’s advanced ground engineering technologies and experienced slab lifting engineers

Technical

The combination of our proven ground improvement technologies and our experienced ground engineers enables us to re-level and re-support buildings affected by subsidence across various sectors.

Consultative approach icon representing Mainmark UK’s problem-solving expertise in slab lifting solutions

Consultative

Our problem-solving approach and recommendation of ground engineering solutions sets us apart from the competition. The complexity of ground improvement requires a range of state-of-the-art technologies to meet both project and client requirements.

Trusted

We are trusted to present effective and creative solutions to many types of ground engineering problems in a wide range of sectors, including residential, industrial, commercial, civil engineering and infrastructure.

Get in Touch

Worried about wall cracks, ceiling cracks, or possible subsidence? Mainmark Ireland’s specialists are here to help. We’ll inspect, assess, and provide the most effective repair plan for your property.

Location

Mainmark Ground Engineering (UK) Ltd
3rd Floor
40 Mespil Road
Dublin 4
D04 C2NA