Maesteg · Mid Glamorgan
Mining subsidence repairs in Maesteg
If you think historic mining may be behind movement at your Maesteg property, report coal-mining damage to the Mining Remediation Authority and tell your insurer too. Repairs come after the cause is confirmed and the ground is known to be stable.
Guide price from£75per metre of crack inc VAT

- Postcodes
- CF34
- Population
- about 21,000
- Area
- Mid Glamorgan
- Pricing region
- Wales
What is the ground like in Mid Glamorgan?
Maesteg (CF34) has around 21,000 residents and sits in Mid Glamorgan. Nearby places we cover include Neath (7 miles), Bridgend (8 miles) and Tonypandy (9 miles).
Parts of Mid Glamorgan have clay that can shrink near trees in dry spells. Historic coal workings are recorded beneath parts of Mid Glamorgan, and a coal mining search is worth checking where movement is unexplained. What you mostly find across Mid Glamorgan: long stone and brick terraces on valley sides, Victorian houses in Bridgend and post-war estates.
Mining subsidence repairs prices in Maesteg
These are guide prices for Maesteg, using Wales 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 | £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 | — |
How we usually approach mining subsidence repairs
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 during mining subsidence repairs, step by step?
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.
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.
What to look for before calling about mining subsidence repairs
- A dip, hollow or hole opening in the garden or drive
- The whole house leaning slightly, with doors swinging open
- Steps or ridges forming in paths, kerbs or garden walls
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 Maesteg
How much will mining subsidence repairs cost in Maesteg?
Guide prices for mining subsidence repairs in Maesteg 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 cover Maesteg?
Yes. We take enquiries from across Maesteg, including CF34, and from nearby places such as Neath and Bridgend. Send photos for a free initial view and we will tell you what happens next.
Is the ground in Mid Glamorgan prone to subsidence?
Mid Glamorgan lies on the South Wales coalfield, with dense historic workings, spoil tips and steep valley sides. Landslip, retaining walls and mining legacy are all live issues in the valleys. Only an investigation can say why a particular building has moved.
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.
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.
Other structural repairs in Maesteg
- Structural surveys and crack monitoring
- Concrete repairs
- Extension pulling away repairs
- Floor joist repairs
- Lintel replacement
Mining subsidence repairs near Maesteg
Unsure whether mining is behind the cracks at your Maesteg home? Share photos for a free initial assessment before you commit to anything.