Llanelli · Dyfed
Mining subsidence repairs in Llanelli
Cracking in a Llanelli home is more often caused by clay, trees or drains than by mining, even in areas with a mining past. If mining is a possibility, report it to the right body early and keep a dated photo record of every crack.
Guide price from£75per metre of crack inc VAT

- Postcodes
- SA15
- Population
- about 50,000
- Area
- Dyfed
- Pricing region
- Wales
What is the ground like in Dyfed?
We cover Llanelli and its postcode districts SA15, part of Dyfed, with a population of roughly 50,000. If you are just outside Llanelli, we also cover Gorseinon (5 miles), Swansea (10 miles) and Ammanford (11 miles).
Most of Dyfed is on firmer ground than the clay belts of the south-east. Parts of Dyfed lie on a former coalfield, so a coal mining search is worth checking if movement has no obvious cause. Housing stock in Dyfed: Stone cottages, Victorian terraces in Llanelli and Carmarthen, and post-war estates.
How we usually approach mining subsidence repairs
Pricing an engineer’s repair scope
When a claim is under way, the engineer or claim handler usually writes the scope of repairs. We price that schedule item by item, at no charge to request, and carry out the work if you choose us. Anything outside the scope is shown separately.
Best for: Homeowners with a mining claim or engineer’s report in hand
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 during mining subsidence repairs, step by step?
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.
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.
What to look for before calling about mining subsidence repairs
- A dip, hollow or hole opening in the garden or drive
- Cracks running through the foundations and up both faces of a wall
- Damage that does not change with the seasons
Mining subsidence repairs prices in Llanelli
For Llanelli we use Wales rates. Treat the table as a budget guide, inc VAT; the price you pay is the one on your written quote.
| Item | Guide price | Per |
|---|---|---|
| Crack stitching and making good | £75 – £165 | per metre of crack |
| Re-levelling or ground stabilisation by resin injection | £735 – £1,400 | per metre of wall |
| Underpinning where the engineer specifies it | £920 – £3,200 | per metre of wall |
| Repair schedule for a claim (pricing an engineer's scope)est. | Free to request | — |
Rules for mining subsidence repairs in Wales
In Wales, the Welsh version of the Building Regulations applies. Underpinning and other work that alters or strengthens the structure needs building control approval and inspection; like-for-like repairs often do not. The Party Wall etc. Act 1996 applies to work on party walls and excavation close to a neighbour’s foundations.
Questions about mining subsidence repairs in Llanelli
What is the price of mining subsidence repairs in Llanelli?
Guide prices for mining subsidence repairs in Llanelli start from about £75 per metre of crack, including VAT, on Wales 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 Llanelli?
Yes. We take enquiries from across Llanelli, including SA15, and from nearby places such as Gorseinon and Swansea. Send photos for a free initial view and we will tell you what happens next.
Does the ground around Llanelli cause cracking?
The western edge of the South Wales coalfield lies beneath Llanelli, Ammanford and parts of Pembrokeshire, while the rest of the area is older hard rock with glacial deposits in the valleys. Only an investigation can say why a particular building has moved.
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.
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.
More repairs we carry out in Llanelli
- Gable end wall repairs
- Structural crack repairs
- Subsidence insurance claim repairs
- Subsidence repairs
- Bowing wall repairs
Mining subsidence repairs near Llanelli
Once the cause is confirmed at your Llanelli property, we confirm a fixed price in writing for the repairs; send the report or photos to start.