Abergele · Clwyd
Mining subsidence repairs in Abergele
If you think historic mining may be behind movement at your Abergele 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
- LL22
- Population
- about 11,000
- Area
- Clwyd
- Pricing region
- Wales
What is the ground like in Clwyd?
Postcode districts LL22 cover Abergele, a Clwyd town of about 11,000 people. Neighbouring towns we cover: Rhyl (4 miles), Colwyn Bay (6 miles) and Prestatyn (8 miles).
Clay soils are found in parts of Clwyd. Parts of Clwyd lie on a former coalfield, so a coal mining search is worth checking if movement has no obvious cause. What you mostly find across Clwyd: brick colliery terraces, seaside villas in Rhyl and Colwyn Bay, and post-war estates.
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
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
From first photo to finished repair
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.
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
- The whole house leaning slightly, with doors swinging open
- Cracks appearing suddenly across several walls at once
- Damage that does not change with the seasons
Guide prices for mining subsidence repairs in Abergele
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 | — |
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 Abergele?
Guide prices for mining subsidence repairs in Abergele 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 Abergele?
We do. Abergele and the surrounding area are covered, including nearby Rhyl and Colwyn Bay. A free initial assessment from your photos is the first step.
Is the ground in Clwyd prone to subsidence?
The North Wales coalfield runs beneath parts of Wrexham and Flintshire, where historic workings are recorded, while the coast and vale have glacial clays and the hills are older hard rock. 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.
Who pays for coal-mining subsidence damage?
Liability for damage from past coal mining usually rests with the Mining Remediation Authority, or with the operator of a working mine. They investigate whether coal mining caused the damage before agreeing any repair. Tell your home insurer as well, because policy cover and the mining claim can overlap.
Other structural repairs in Abergele
- Bay window subsidence repairs
- Underpinning
- Structural crack repairs
- Retaining wall repairs
- Wall tie replacement
Mining subsidence repairs near Abergele
Holding an engineer’s repair scope for your Abergele property? Send it over and we will price it item by item at no charge.