Ebbw Vale · Gwent
Mining subsidence repairs in Ebbw Vale
If you think historic mining may be behind movement at your Ebbw Vale 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
- NP23
- Population
- about 33,000
- Area
- Gwent
- Pricing region
- Wales
What should you know about the ground under Ebbw Vale?
With roughly 33,000 people, Ebbw Vale spans postcode districts NP23 in Gwent. We also take enquiries from nearby Abertillery (5 miles), Merthyr Tydfil (8 miles) and Blackwood (8 miles).
Gwent has a mix of ground, with clay in some places and firmer rock in others. Historic coal workings are recorded beneath parts of Gwent, and a coal mining search is worth checking where movement is unexplained. Housing stock in Gwent: Valley terraces on steep hillsides, Victorian houses in Newport and Abergavenny, and post-war estates.
Guide prices for mining subsidence repairs in Ebbw Vale
The ranges below reflect typical Wales costs for mining subsidence repairs, including VAT. Scaffold, access and making good can push a job to the top of the range.
| 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 | — |
Methods for mining subsidence repairs
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
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
From first photo to finished repair
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.
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.
Symptoms that point to mining subsidence repairs
- Cracks running through the foundations and up both faces of a wall
- Cracks appearing suddenly across several walls at once
- The whole house leaning slightly, with doors swinging open
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.
Frequently asked questions
How much will mining subsidence repairs cost in Ebbw Vale?
Guide prices for mining subsidence repairs in Ebbw Vale 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 Ebbw Vale?
Yes. We take enquiries from across Ebbw Vale, including NP23, and from nearby places such as Abertillery and Merthyr Tydfil. Send photos for a free initial view and we will tell you what happens next.
Is the ground in Gwent prone to subsidence?
The valleys of Blaenau Gwent, Torfaen and Islwyn lie on the South Wales coalfield with extensive historic workings and spoil tips, while Newport and Monmouthshire have Mercia Mudstone, alluvium and Old Red Sandstone. 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 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.
Other structural repairs in Ebbw Vale
- Wall tie replacement
- Structural surveys and crack monitoring
- Subsidence insurance claim repairs
- Boundary and garden wall repairs
- Chimney stack repairs
Mining subsidence repairs near Ebbw Vale
Unsure whether mining is behind the cracks at your Ebbw Vale home? Share photos for a free initial assessment before you commit to anything.