Keynsham · Somerset
Mining subsidence repairs in Keynsham
Whether old mine workings lie beneath Keynsham 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£80per metre of crack inc VAT
- Postcodes
- BS31
- Population
- about 20,000
- Area
- Somerset
- Pricing region
- South West
Is Somerset prone to ground movement?
Keynsham is in Somerset and takes in postcode districts BS31. About 20,000 people live there. Nearby places we cover include Kingswood (3 miles), Bath (6 miles) and Yate (9 miles).
Clay soils are found in parts of Somerset. Parts of Somerset lie on a former coalfield, so a coal mining search is worth checking if movement has no obvious cause. Housing stock in Somerset: Bath stone Georgian terraces, Victorian houses in Taunton and Weston-super-Mare, and post-war estates.
How much will mining subsidence repairs cost in Keynsham?
Guide prices below are for homes in Keynsham, on South West rates and including VAT. A survey or good photos let us turn them into a fixed written price.
| Item | Guide price | Per |
|---|---|---|
| Crack stitching and making good | £80 – £185 | per metre of crack |
| Re-levelling or ground stabilisation by resin injection | £825 – £1,550 | per metre of wall |
| Underpinning where the engineer specifies it | £1,050 – £3,600 | 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 Keynsham?
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
What happens when we carry out mining subsidence repairs in Keynsham?
Report and photograph
Photograph every crack with a scale and note the date it appeared. Report suspected coal-mining damage to the Mining Remediation Authority, or the operator of a working mine, and notify your home insurer. Time limits can apply, so report promptly.
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
- A dip, hollow or hole opening in the garden or drive
- Cracks appearing suddenly across several walls at once
- Steps or ridges forming in paths, kerbs or garden walls
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 Keynsham: questions and answers
How much will mining subsidence repairs cost in Keynsham?
Guide prices for mining subsidence repairs in Keynsham start from about £80 per metre of crack, including VAT, on South West rates. Your fixed written price follows photos or a survey and depends on the extent of the work and access.
Do you cover Keynsham?
We do. Keynsham and the surrounding area are covered, including nearby Kingswood and Bath. A free initial assessment from your photos is the first step.
Is the ground in Somerset prone to subsidence?
Somerset mixes Lias clays, Mercia Mudstone, limestone hills and the peat and alluvium of the Levels around Bridgwater, which can settle. The former Somerset coalfield around Radstock and Midsomer Norton left recorded workings. 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.
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.
Other structural repairs in Keynsham
- Lintel replacement
- Subsidence repairs
- Underpinning
- Extension pulling away repairs
- Bay window subsidence repairs
Mining subsidence repairs near Keynsham
For a no-obligation written quote on mining damage repairs in Keynsham, call or send photos of the cracks and any mining report you have.