Porthcawl · Mid Glamorgan
Mining subsidence repairs in Porthcawl
Cracking in a Porthcawl 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
- CF36
- Population
- about 16,000
- Area
- Mid Glamorgan
- Pricing region
- Wales
What should you know about the ground under Porthcawl?
With roughly 16,000 people, Porthcawl spans postcode districts CF36 in Mid Glamorgan. Neighbouring towns we cover: Bridgend (6 miles), Maesteg (9 miles) and Llantwit Major (10 miles).
Clay soils are found in parts of Mid Glamorgan. Historic coal workings are recorded beneath parts of Mid Glamorgan, and a coal mining search is worth checking where movement is unexplained. Typical buildings in Mid Glamorgan: Long stone and brick terraces on valley sides, Victorian houses in Bridgend and post-war estates.
Methods for 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
From first photo to finished repair
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.
Symptoms that point to mining subsidence repairs
- Damage that does not change with the seasons
- Cracks running through the foundations and up both faces of a wall
- The whole house leaning slightly, with doors swinging open
Guide prices for mining subsidence repairs in Porthcawl
These are guide prices for Porthcawl, 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 | — |
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
What is the price of mining subsidence repairs in Porthcawl?
Guide prices for mining subsidence repairs in Porthcawl 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 Porthcawl?
Yes. We take enquiries from across Porthcawl, including CF36, and from nearby places such as Bridgend and Maesteg. Send photos for a free initial view and we will tell you what happens next.
Does the ground around Porthcawl 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.
Is my house affected by mining because it is on a coalfield?
Not necessarily. Many homes on coalfields have no mining-related damage at all, and cracks there can still come from clay, trees or drains. A coal mining report shows recorded workings nearby, and an engineer’s inspection is needed to link damage to mining.
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.
More repairs we carry out in Porthcawl
- Chimney stack repairs
- Wall tie replacement
- Brick arch repairs
- Subsidence insurance claim repairs
- Underpinning
Mining subsidence repairs near Porthcawl
Unsure whether mining is behind the cracks at your Porthcawl home? Share photos for a free initial assessment before you commit to anything.