Sevenoaks · Kent
Mining subsidence repairs in Sevenoaks
Mining damage to a house in Sevenoaks is usually repaired the same way as other movement once the ground is settled: stitching, stabilising or underpinning as the engineer specifies. What differs is who investigates and who may be liable.
Guide price from£90per metre of crack inc VAT
- Postcodes
- TN13
- Population
- about 30,000
- Area
- Kent
- Pricing region
- South East
How do local ground conditions affect mining subsidence repairs in Sevenoaks?
Sevenoaks, Kent: about 30,000 residents across postcode districts TN13. If you are just outside Sevenoaks, we also cover Tonbridge (6 miles), Swanley (9 miles) and Bromley (10 miles).
Kent is one of the parts of the UK where clay soils are most likely to move with the seasons. Parts of Kent lie on a former coalfield, so a coal mining search is worth checking if movement has no obvious cause. Across Kent, most homes are Victorian terraces in the Medway towns, weatherboarded and Wealden houses, 1930s semis and seaside bungalows.
Signs you may need mining subsidence repairs
- Damage that does not change with the seasons
- Steps or ridges forming in paths, kerbs or garden walls
- A dip, hollow or hole opening in the garden or drive
How much will mining subsidence repairs cost in Sevenoaks?
These are guide prices for Sevenoaks, using South East rates and including VAT. Your written quote follows photos or a survey, and is fixed once the repair is specified.
| Item | Guide price | Per |
|---|---|---|
| Crack stitching and making good | £90 – £200 | per metre of crack |
| Re-levelling or ground stabilisation by resin injection | £895 – £1,700 | per metre of wall |
| Underpinning where the engineer specifies it | £1,100 – £3,900 | per metre of wall |
| Repair schedule for a claim (pricing an engineer's scope)est. | Free to request | — |
Which repair method suits a home in Sevenoaks?
Crack stitching and making good
Where the ground has stopped moving and the damage is cracking, the walls are stitched with stainless helical bars, repointed and replastered. This covers a large share of mining damage, especially legacy movement that settled years ago and left cracks behind.
Best for: Cracking after movement that has now stopped
Underpinning to sound ground
Where the engineer specifies it, foundations are taken down by mass concrete, beam-and-base or mini-piles to ground that will not move further. On mining sites the design often follows grouting of old workings so the new foundation sits above a stable mass.
Best for: Ongoing movement or damage beyond what crack repairs can hold
What happens when we carry out mining subsidence repairs in Sevenoaks?
Check the mining record
A coal mining report or a search of mining records shows whether recorded workings or shafts lie near the property. Records are incomplete, so a clear report does not rule mining out, and a recorded seam nearby does not prove it is the cause.
Engineer’s assessment
An independent chartered structural engineer inspects the damage and, if needed, recommends drilling or ground investigation to locate voids. We can arrange the engineer. Their report sets out the cause, whether movement has stopped and what repair is needed.
Written price to the scope
We price the repair from the engineer’s or claim schedule and confirm a fixed price in writing once the work is specified. Where a claim body or insurer is handling the repair, their own process for appointing contractors applies.
Rules for mining subsidence repairs 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.
Mining subsidence repairs in Sevenoaks: questions and answers
What is the price of mining subsidence repairs in Sevenoaks?
Guide prices for mining subsidence repairs in Sevenoaks start from about £90 per metre of crack, 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 mining subsidence repairs in Sevenoaks?
We do. Sevenoaks and the surrounding area are covered, including nearby Tonbridge and Swanley. A free initial assessment from your photos is the first step.
Does the ground around Sevenoaks 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.
Who pays for coal-mining subsidence damage?
Liability for damage from past coal mining usually rests with the Mining Remediation Authority, or with the operator of a working mine. They investigate whether coal mining caused the damage before agreeing any repair. Tell your home insurer as well, because policy cover and the mining claim can overlap.
How do I make a mining subsidence claim?
Start by reporting the damage to the Mining Remediation Authority, describing when it appeared and including photographs. They will usually arrange an inspection and investigation. Report promptly, because time limits can apply. Keep copies of everything you send, and notify your home insurer in parallel.
More repairs we carry out in Sevenoaks
- Structural surveys and crack monitoring
- Retaining wall repairs
- Underpinning
- Bay window subsidence repairs
- Bowing wall repairs
Mining subsidence repairs near Sevenoaks
Call us about cracking or ground movement in Sevenoaks, or send photos, and we will explain the likely next steps and a guide price.