Underpinning & foundations
The short answer
Stabilise and strengthen
- Price from
- £8,000.00
- Time on site
- 1 to 6 weeks, often longer for complex projects
What you get
You get a structurally sound and stable property with reinforced or repaired foundations, ensuring long-term safety and integrity.
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When do you need a Underpinning & foundations?
Underpinning is needed when a property shows signs of foundation failure, such as significant cracking in walls, sloping floors, or doors/windows sticking due to movement. This can be caused by subsidence, changes in soil conditions, or increased load on the structure.
What happens on the day
Work will involve excavation around the existing foundations, careful propping of the structure, and then pouring new concrete or installing other underpinning solutions in sections. It is a disruptive process, and you may need to vacate the property or part of it.
How to prepare
- Arrange for a structural engineer's report and designs.
- Ensure clear access for machinery and material delivery.
- Protect valuable possessions from dust and vibration.
- Inform neighbours about potential noise and disruption.
- Consider temporary accommodation if the work is extensive.
How to improve your result
- Always get a professional structural engineer's assessment first.
- Ensure work is carried out by experienced and insured contractors.
- Monitor soil conditions around your property for changes.
- Maintain good drainage to prevent water accumulation near foundations.
Why it is useful day to day
Proper underpinning and foundation work safeguards your property's long-term stability and value, resolving critical structural issues that could otherwise lead to complete failure.
Why we ask these questions
We ask about the type and age of the property, the observed damage, and any known ground conditions to assess the best underpinning or foundation repair method. This helps us understand the structural issues and required engineering solutions.
Frequently asked questions
Often needed alongside
Project manager
Run the build for you
Home extension
Single or double storey
Loft conversion
Dormer, hip-to-gable, Velux
Garage conversion
Turn garage into living space
Basement conversion
Cellar to habitable room
Garden room or annexe
Studios, offices, outbuildings
Knock-through & steel beams
Remove walls safely
Brickwork & walls
Walls, repointing, repairs