Screw Pile Underpinning vs Traditional Methods
| Factor | Screw Pile Underpinning | Traditional Underpinning |
|---|---|---|
| Installation time | ✓ 2-5 days typical | ✗ 4-8 weeks minimum |
| Excavation required | ✓ Minimal – small access pits | ✗ Extensive trenching beneath foundations |
| Building occupation | ✓ Remain in property throughout | ✗ Often requires temporary relocation |
| Curing time | ✓ Immediate load transfer | ✗ 28 days per section |
| Ground vibration | ✓ Negligible | ✗ Significant during excavation |
| Mess & disruption | ✓ Contained, clean operation | ✗ Major site works |
do you have a screw pile foundation project we can help with?
Why Choose Us for Your Underpinning Project?
Traditional underpinning involves digging beneath your existing foundations in sections, pouring concrete, and waiting weeks for it to cure. It’s slow, disruptive, and often requires temporary relocation.
Our screw pile underpinning system installs piles adjacent to your existing foundations, then transfers structural load onto stable ground deep below the problem zone. The building stays occupied. The garden stays intact. Stabilisation happens immediately.
Benefits of Screw Pile Underpinning
Fast & Minimal Disruption
Installation completes in days, not months. Remain in your property throughout the works with no large-scale excavation.
Ideal for restricted access
Equipment fits through standard doorways and side passages. Works internally through floor slabs where external access is impossible.
Cleaner and eco-friendly
Less carbon & waste than concrete footings.
High-quality, long-life components
GoliathTech galvanised steel piles engineered to ISO9001 standards. Designed for long-term durability.
Immediate Structural Capacity
No waiting for concrete to cure. Load transfers instantly from failed foundations onto the new screw pile system.
Less Disruptive for Neighbours
No extensive trenching or heavy machinery. Low-vibration installation minimises impact on adjoining properties.
When Is Helical Pile Underpinning Needed?
Helical pile underpinning can simplify several common extension challenges:
Subsidence & Ground Movement
- Clay shrinkage, tree root moisture extraction, or gradual settlement causing uneven foundation drop
- Screw pile underpinning anchors foundations to stable strata below the affected zone
Foundation Failure
- Original foundations undersized, built on poorly compacted fill, or deteriorated over time
- Our screw pile foundation system bypasses failed footings entirely
Additional Load Requirements
- Loft conversions, additional storeys, or heavy alterations exceeding existing foundation capacity
- Screw pile underpinning provides supplementary support without complete rebuilds
Historic & Listed Buildings
- Period properties with shallow foundations unsuitable for modern loading
- Low-impact screw pile installation preserves architectural integrity
What to Expect from Installation
Typical project timeline:
- Day 1: Structural survey and pile positioning
- Days 2-4: Screw pile installation through access pits
- Day 4-5: Bracket connection and load transfer
- Completion: Full documentation and certification for insurers and Building Control
Our screw pile underpinning system works for properties facing subsidence, foundation failure, tree damage, or additional load requirements.
Perfect for terraced houses, period properties, listed buildings, and any situation where traditional underpinning proves too disruptive or impractical.
Screw Pile Installation Coverage Area
Our screw pile underpinning service covers the following areas shaded in the map, including but not limited to:
Greater London – Hertfordshire – Surrey – Kent – East Sussex – West Sussex
Unsure if your area is covered? Get in touch
Get A Quote Today
Concerned about foundation movement or structural cracks? Send us your details and we’ll arrange a site assessment. We provide:
- Foundation condition evaluation
- Screw pile underpinning feasibility assessment
- Engineering specification
- Project timeline and pricing
