Neath · West Glamorgan
Resin injection ground stabilisation in Neath
A sunken floor slab or a settled corner in a Neath home can sometimes be treated from the surface with expanding resin. Levels are read throughout, and monitoring afterwards shows whether the ground is holding before the cracks are repaired.
Guide price from£735per metre of wall treated inc VAT

- Postcodes
- SA10, SA11
- Population
- about 46,000
- Area
- West Glamorgan
- Pricing region
- Wales
What should you know about the ground under Neath?
Neath is in West Glamorgan and takes in postcode districts SA10, SA11. About 46,000 people live there. We also take enquiries from nearby Clydach (4 miles), Swansea (7 miles) and Maesteg (7 miles).
West Glamorgan has a mix of ground, with clay in some places and firmer rock in others. Historic coal workings are recorded beneath parts of West Glamorgan, and a coal mining search is worth checking where movement is unexplained. Across West Glamorgan, most homes are hillside terraces, Victorian villas in Swansea and post-war estates.
What happens during resin injection ground stabilisation, step by step?
Ground and drain checks
Trial pits or probes confirm the soil profile, and a CCTV drain survey checks for leaks and for pipes in the injection zone. Damaged drains are repaired first, so resin is not lost into them or used to treat a cause that is still active.
Design and written price
The injection depths, spacing and target lift are set out before work starts. We confirm a fixed price in writing for the treated length, the monitoring and the making good, and deal with building control where the work needs it.
Level monitoring
Readings after treatment show whether the ground is holding. Once they are steady, cracks are stitched and redecoration can follow. If a section keeps moving, the engineer decides whether further injection or a different method is needed.
What to look for before calling about resin injection ground stabilisation
- Gaps opening beneath a ground-floor slab or path
- Floor slab dropping or hollow-sounding near one external wall
- Cracks over a section of wall built on loose fill
Resin injection ground stabilisation prices in Neath
For Neath we use Wales rates. Treat the table as a budget guide, inc VAT; the price you pay is the one on your written quote.
| Item | Guide price | Per |
|---|---|---|
| Resin injection ground stabilisation | £735 – £1,400 | per metre of wall treated |
| Typical domestic project | £4,600 – £13,800 | per project |
| Level monitoring after treatmentest. | £320 – £830 | per programme |
How we usually approach resin injection ground stabilisation
Slab void filling and lifting
Small holes are drilled through the floor, and resin is fed into the void between the slab and the fill. As it expands it fills the gap and can lift the slab by small, controlled amounts. Floor coverings are lifted locally and the holes filled afterwards.
Best for: Sunken concrete ground floors and garage slabs
Resin alongside other repairs
Injection often forms one part of a wider scheme: drains repaired first, resin under the affected section, then crack stitching and making good once readings settle. On a mixed site, one wall may suit resin while another needs conventional underpinning instead.
Best for: Localised settlement within a broader subsidence repair
Rules for resin injection ground stabilisation in Wales
In Wales, the Welsh version of the Building Regulations applies. Underpinning and other work that alters or strengthens the structure needs building control approval and inspection; like-for-like repairs often do not. The Party Wall etc. Act 1996 applies to work on party walls and excavation close to a neighbour’s foundations.
Questions about resin injection ground stabilisation in Neath
How much should I budget for resin injection ground stabilisation in Neath?
Guide prices for resin injection ground stabilisation in Neath start from about £735 per metre of wall treated, including VAT, on Wales rates. Your fixed written price follows photos or a survey and depends on the extent of the work and access.
Can you survey a property in Neath?
Yes. We take enquiries from across Neath, including SA10, SA11, and from nearby places such as Clydach and Swansea. Send photos for a free initial view and we will tell you what happens next.
Why do houses in West Glamorgan crack?
Swansea and Neath Port Talbot lie on the South Wales coalfield, with historic workings, tips and steep valley sides, and softer estuarine ground around the docks. Only an investigation can say why a particular building has moved.
How long does resin injection last?
The cured resin itself is stable and does not break down in normal ground. Whether the repair lasts depends on whether the cause of movement has been removed, which is why drains are checked and monitoring follows. If the ground was the only problem, the treatment is usually long-term.
Does resin injection work on clay soil?
Sometimes, but clay needs the most caution. If seasonal shrinkage from nearby trees is the cause, resin under the footing may not stop the drying below it. An engineer should look at the soil, the trees and the monitoring history before resin is chosen for a clay site.
Related work in Neath
- Concrete repairs
- Structural crack repairs
- Wall tie replacement
- Boundary and garden wall repairs
- Bay window subsidence repairs
Resin injection ground stabilisation near Neath
For a no-obligation written quote on resin injection in Neath, send the engineer’s report or a few photos of the settlement and cracking.