Void Filling
Underground voids can form beneath buildings and infrastructure due to washout, dissolved materials, collapsed drains, salt dissolution, or old mine workings. These voids pose a significant risk of sudden ground collapse. Our void filling service uses controlled injection techniques to safely fill these spaces and prevent further settlement.
Key Benefits
Controlled injection process
Non-destructive method
Prevents sudden collapse
Rapid completion times
Sub-surface void detection
Suitable for all void types
Void Filling — Pros & Cons
Pros
- Prevents sudden collapse risk
- Minimally invasive process
- Suitable for all void types
- Rapid completion times
- Non-destructive detection methods
Cons
- •Requires specialist detection equipment
- •Multiple injection sessions may be needed
- •Access limitations in some locations
- •Ongoing monitoring may be recommended
How It Works
Detection
Ground penetrating radar and other methods to locate and map voids.
Planning
Injection plan designed based on void size, location, and cause.
Filling
Controlled injection of grout or resin to fill the void safely.
Verification
Post-treatment scanning confirms complete void filling.
Frequently Asked Questions
Several factors cause them. Voids can form from collapsed drains, soil washout, dissolved salt deposits, old mine workings, or degraded fill materials. In Cheshire, salt dissolution is a particularly common cause.
We use non-invasive methods including ground penetrating radar (GPR), dynamic cone penetrometers, and trial pits to locate and assess voids beneath your property.
It depends on the void size and conditions. We use geopolymer resin, cementitious grout, or foamed concrete depending on what's most appropriate for your situation.
No, the process is minimally invasive. Small injection holes are drilled and the filling material is pumped in under controlled conditions with no need for excavation.
Void Filling Across Cheshire
We provide void filling services throughout Cheshire. Click a location for local details.
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