Maidstone · Kent
Mining subsidence repairs in Maidstone
Whether old mine workings lie beneath Maidstone is a question for the mining records, not for guesswork. A coal mining report shows recorded seams, shafts and past workings nearby, while an engineer’s inspection is what links any damage to them.
Guide price from£90per metre of crack inc VAT

- Postcodes
- ME14, ME15, ME16
- Population
- about 110,000
- Area
- Kent
- Pricing region
- South East
What should you know about the ground under Maidstone?
Maidstone is in Kent and takes in postcode districts ME14, ME15, ME16. About 110,000 people live there. Neighbouring towns we cover: Gillingham (9 miles), Strood (9 miles) and Sittingbourne (11 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. Typical buildings in Kent: Victorian terraces in the Medway towns, weatherboarded and Wealden houses, 1930s semis and seaside bungalows.
What happens when we carry out mining subsidence repairs in Maidstone?
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.
Repairs and records
Work proceeds once any ground treatment is complete and the engineer is satisfied. We stitch, stabilise or underpin as specified, make good inside and out, deal with building control where needed, and hand over records for your file.
Signs you may need mining subsidence repairs
- The whole house leaning slightly, with doors swinging open
- Cracks appearing suddenly across several walls at once
- Damage that does not change with the seasons
How much will mining subsidence repairs cost in Maidstone?
Prices in Maidstone are worked out on South East 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 |
|---|---|---|
| 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 Maidstone?
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
Ground stabilisation by resin injection
For localised settlement in the upper soil layers, expanding resin can be injected beneath the footings to firm the ground and sometimes reduce a small tilt. It is not suitable for large voids deep below, which need grouting or other specialist treatment first.
Best for: Shallow settlement once deeper voids are ruled out or treated
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 Maidstone: questions and answers
How much will mining subsidence repairs cost in Maidstone?
Guide prices for mining subsidence repairs in Maidstone 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 cover Maidstone?
We do. Maidstone and the surrounding area are covered, including nearby Gillingham and Strood. A free initial assessment from your photos is the first step.
Is the ground in Kent prone to subsidence?
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.
What about salt, lead or ironstone mining?
Damage from non-coal mining follows different routes. Cheshire’s brine areas have their own statutory compensation arrangements, while metal, ironstone and limestone workings often have no equivalent scheme, leaving your home insurer as the main route. A solicitor or your insurer can confirm which applies.
Can mining subsidence start again years later?
It can, particularly over shallow workings or old shafts, where collapse can happen long after mining ended. Movement from deep longwall mining generally settled within a few years of extraction. An engineer can judge whether current damage is old, settled cracking or new movement.
Other structural repairs in Maidstone
- Subsidence insurance claim repairs
- Structural crack repairs
- Bay window subsidence repairs
- Structural surveys and crack monitoring
- Concrete repairs
Mining subsidence repairs near Maidstone
Call us about cracking or ground movement in Maidstone, or send photos, and we will explain the likely next steps and a guide price.