Underpinning

Underpinning involves strengthening the existing foundations of a building to provide additional support. This is typically required when the original foundation is no longer strong enough to support the structure, often due to changes in soil conditions, nearby construction, or subsidence damage.

Structural crack requiring repair

Key Benefits

Multiple underpinning methods available

Suitable for all property types

Structural engineering expertise

Building regulations compliant

Long-term foundation stability

Can increase property value

Pros & Cons of Underpinning

Advantages

  • Provides a permanent, engineered solution to weak foundations
  • Can extend the life of a building by decades
  • Multiple methods available to suit different property types
  • Increases structural load capacity for extensions or conversions
  • Fully certified — adds confidence for buyers and lenders

Considerations

  • Traditional underpinning involves excavation and can be disruptive
  • Typically takes longer than non-invasive methods like resin injection
  • May require temporary propping during the works
  • Building control approval is needed in most cases

How It Works

1

Assessment

Thorough assessment of your foundations and soil conditions.

2

Design

Our engineers design the optimal underpinning solution for your property.

3

Installation

Expert installation using the chosen underpinning method.

4

Certification

Full documentation and certification of completed works.

Frequently Asked Questions

What types of underpinning do you offer?

We offer several methods, including mass concrete underpinning, mini-piled underpinning, beam and base systems, and resin injection. The right method depends on your soil type, foundation depth, and the severity of the issue.

How much does underpinning cost?

It varies significantly depending on property size, access, and the method required. We provide free, no-obligation quotes after an initial survey so you get an accurate figure before committing.

Is underpinning disruptive?

It can be. Traditional mass concrete underpinning requires excavation, which is more disruptive. However, modern alternatives like resin injection are far less invasive and can often achieve the same result with minimal disturbance.

Do I need planning permission for underpinning?

No, planning permission is not usually required. However, building control approval is typically needed. We handle all necessary approvals as a standard part of our service.

Free Underpinning Quote

No obligation — we respond within 24 hours

Need Underpinning?

Get a free, no-obligation quote from our specialist team.