Swanley · Kent
Resin injection ground stabilisation in Swanley
For a Swanley house that has settled over loose fill or ground washed out by a drain, expanding resin can firm the soil in a day or two. It is done through small drilled holes, so gardens and paths are left largely as they were.
Guide price from£895per metre of wall treated inc VAT

- Postcodes
- BR8
- Population
- about 22,000
- Area
- Kent
- Pricing region
- South East
What is the ground like in Kent?
Swanley is in Kent and takes in postcode districts BR8. About 22,000 people live there. Nearby places we cover include Dartford (4 miles), Bexley (4 miles) and Bromley (5 miles).
Shrinkable clay is widespread in Kent. Parts of Kent lie on a former coalfield, so a coal mining search is worth checking if movement has no obvious cause. Housing stock in Kent: Victorian terraces in the Medway towns, weatherboarded and Wealden houses, 1930s semis and seaside bungalows.
What happens during resin injection ground stabilisation, step by step?
Is resin suitable?
Send photos and any reports you hold. We give a free initial assessment, and an independent engineer then checks soil type, depth to firm ground and the cause. We can arrange the engineer. Clay and tree problems need particular care.
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.
Injection day
Holes are drilled, tubes placed and resin injected in stages while laser levels on the wall are watched for any rise. Most domestic jobs are done from outside, with little mess. Holes are filled and joints made good at the end.
What to look for before calling about resin injection ground stabilisation
- Sinking that trial pits trace to loose or washed-out soil
- Settlement after a drain leak has been found and repaired
- Gaps opening beneath a ground-floor slab or path
Resin injection ground stabilisation prices in Swanley
The ranges below reflect typical South East costs for resin injection ground stabilisation, including VAT. Scaffold, access and making good can push a job to the top of the range.
| Item | Guide price | Per |
|---|---|---|
| Resin injection ground stabilisation | £895 – £1,700 | per metre of wall treated |
| Typical domestic project | £5,600 – £16,800 | per project |
| Level monitoring after treatmentest. | £390 – £1,000 | per programme |
How we usually approach resin injection ground stabilisation
Injection beneath strip footings
Holes are drilled at close spacing along the wall, and tubes are placed at one or more depths below the footing. Resin is injected in stages from the bottom up, building a stiffened zone of ground under the wall while levels are read continuously.
Best for: Settled walls on loose or washed-out soil at shallow depth
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 England
In England, underpinning and other work that alters or strengthens a wall or foundation is building work under the Building Regulations (Part A, structure), so building control approves and inspects it. Like-for-like repairs often are not, and we tell you which applies before a price is agreed. Work to a party wall, or excavation close to a neighbour’s foundations, can also need a notice under the Party Wall etc. Act 1996.
Questions about resin injection ground stabilisation in Swanley
What is the price of resin injection ground stabilisation in Swanley?
Guide prices for resin injection ground stabilisation in Swanley start from about £895 per metre of wall treated, including VAT, on South East rates. Your fixed written price follows photos or a survey and depends on the extent of the work and access.
Do you carry out resin injection ground stabilisation in Swanley?
Yes, Swanley is covered, along with postcode districts BR8. We also cover nearby Dartford and Bexley.
Does the ground around Swanley cause cracking?
North Kent sits on London Clay, central Kent on Gault and Weald Clays and the Downs on chalk, so shrinkable clay is widespread. East Kent around Deal and Dover had a small deep coalfield, worked until the late 1980s. Only an investigation can say why a particular building has moved.
Is the resin harmful to the ground or drains?
Once cured, the resin is inert in the ground. The practical risk is resin travelling into a damaged drain or service duct, which is why a CCTV drain survey comes first and any defects are repaired before injection. Services near the treated zone are located and protected.
Can resin injection lift my house back to level?
It can produce small, controlled lifts, but it is not a way to jack a house back to its original position. The main aim is to stabilise the ground. Laser levels are watched throughout so injection stops before the lift strains the walls or opens new cracks.
More repairs we carry out in Swanley
- Extension pulling away repairs
- Structural crack repairs
- Wall tie replacement
- Roof structure repairs
- Bowing wall repairs
Resin injection ground stabilisation near Swanley
For a no-obligation written quote on resin injection in Swanley, send the engineer’s report or a few photos of the settlement and cracking.