Mountain Ash · Mid Glamorgan
Mining subsidence repairs in Mountain Ash
Mining damage to a house in Mountain Ash 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£75per metre of crack inc VAT
- Postcodes
- CF45
- Population
- about 11,000
- Area
- Mid Glamorgan
- Pricing region
- Wales
What should you know about the ground under Mountain Ash?
Mountain Ash (CF45) has around 11,000 residents and sits in Mid Glamorgan. Nearby places we cover include Rhondda (3 miles), Aberdare (4 miles) and Merthyr Tydfil (4 miles).
Mid Glamorgan has a mix of ground, with clay in some places and firmer rock in others. 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.
What happens when we carry out mining subsidence repairs in Mountain Ash?
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.
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.
Signs you may need mining subsidence repairs
- Steps or ridges forming in paths, kerbs or garden walls
- The whole house leaning slightly, with doors swinging open
- A dip, hollow or hole opening in the garden or drive
How much will mining subsidence repairs cost in Mountain Ash?
Guide prices below are for homes in Mountain Ash, on Wales 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 | £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 | — |
Which repair method suits a home in Mountain Ash?
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
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
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.
Mining subsidence repairs in Mountain Ash: questions and answers
What is the price of mining subsidence repairs in Mountain Ash?
Guide prices for mining subsidence repairs in Mountain Ash 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 Mountain Ash?
Yes, Mountain Ash is covered, along with postcode districts CF45. We also cover nearby Rhondda and Aberdare.
Does the ground around Mountain Ash cause cracking?
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.
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.
What should I do if a hole opens in my garden?
Keep everyone away from it and do not try to fill it yourself. Report it straight away to the Mining Remediation Authority if coal mining may be involved, or to your council and insurer otherwise. Old shafts can be deeper and wider than the visible hole suggests.
More repairs we carry out in Mountain Ash
- Structural crack repairs
- Retaining wall repairs
- Underpinning
- Resin injection ground stabilisation
- Crack stitching
Mining subsidence repairs near Mountain Ash
Once the cause is confirmed at your Mountain Ash property, we confirm a fixed price in writing for the repairs; send the report or photos to start.