Merton · Greater London
Resin injection ground stabilisation in Merton
Resin injection can suit some Merton homes well and others not at all. The deciding factors are the soil below the footing, how deep firm ground lies and whether the cause of movement, such as a leaking drain, has already been dealt with.
Guide price from£1,000per metre of wall treated inc VAT
- Postcodes
- CR4, SM4, SW19, SW20
- Population
- about 220,000
- Area
- Greater London
- Pricing region
- London
What is the ground like in Greater London?
Merton is one of the 32 London boroughs, with around 220,000 residents in districts such as CR4, SM4, SW19, SW20. Nearby, we also cover Wandsworth (3 miles), Sutton (3 miles) and Kingston upon Thames (4 miles).
Greater London is one of the parts of the UK where clay soils are most likely to move with the seasons. Ground movement here is more often linked to soils, drains and trees than to mining. Housing stock in Greater London: Victorian and Edwardian terraces with shallow footings, inter-war semis in the outer boroughs, and converted flats and mansion blocks.
Repair options we may recommend
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
What to expect when we carry out resin injection ground stabilisation
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.
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.
Is it time for resin injection ground stabilisation? Common signs
- A corner that has dropped but no longer moves with the seasons
- Sinking that trial pits trace to loose or washed-out soil
- Gaps opening beneath a ground-floor slab or path
What should you budget for resin injection ground stabilisation in Merton?
Prices in Merton are worked out on London rates. They include VAT and are a starting point: access, the extent of the damage and whether an engineer or building control is involved all move the figure.
| Item | Guide price | Per |
|---|---|---|
| Resin injection ground stabilisation | £1,000 – £1,900 | per metre of wall treated |
| Typical domestic project | £6,250 – £18,800 | per project |
| Level monitoring after treatmentest. | £440 – £1,100 | per programme |
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.
Your resin injection ground stabilisation questions
How much will resin injection ground stabilisation cost in Merton?
Guide prices for resin injection ground stabilisation in Merton start from about £1,000 per metre of wall treated, including VAT, on London rates. Your fixed written price follows photos or a survey and depends on the extent of the work and access.
Do you cover Merton?
We do. Merton and the surrounding area are covered, including nearby Wandsworth and Sutton. A free initial assessment from your photos is the first step.
Is the ground in Greater London prone to subsidence?
Most of Greater London sits on London Clay, among the most shrinkage-prone ground in the UK, with river gravels along the Thames. Subsidence claims here are among the most frequent in the country, especially after dry summers and near street and garden trees. 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.
Is resin injection better than underpinning?
It is better for some jobs and unsuitable for others. Resin is quicker and less disruptive where the problem is loose or washed-out soil close to the footing. Underpinning or mini-piles are usually the safer choice for deep soft ground or clay dried by trees that cannot be removed.
Other structural repairs in Merton
- Roof structure repairs
- Structural crack repairs
- Lintel replacement
- Chimney stack repairs
- Extension pulling away repairs
Resin injection ground stabilisation near Merton
Send us the drain survey and any soil information for your Merton property, and we will confirm the next step and a guide price.