Mining subsidence repairs in Mold

Postcodes: CH7
Population: about 10,000
Area: Clwyd
Pricing region: Wales

What should you know about the ground under Mold?

We cover Mold and its postcode districts CH7, part of Clwyd, with a population of roughly 10,000. If you are just outside Mold, we also cover Buckley (2 miles), Connah's Quay (5 miles) and Flint (5 miles).

Parts of Clwyd have clay that can shrink near trees in dry spells. Parts of Clwyd lie on a former coalfield, so a coal mining search is worth checking if movement has no obvious cause. Housing stock in Clwyd: Brick colliery terraces, seaside villas in Rhyl and Colwyn Bay, and post-war estates.

How we usually approach mining subsidence repairs

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

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

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.
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.

What to look for before calling about mining subsidence repairs

The whole house leaning slightly, with doors swinging open
A dip, hollow or hole opening in the garden or drive
Cracks running through the foundations and up both faces of a wall

Mining subsidence repairs prices in Mold

Guide prices below are for homes in Mold, on Wales rates and including VAT. A survey or good photos let us turn them into a fixed written price.

Guide prices inc VAT on Wales rates. Items marked est. are our estimates.
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.

Questions about mining subsidence repairs in Mold

How much should I budget for mining subsidence repairs in Mold?

Guide prices for mining subsidence repairs in Mold 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.

Can you survey a property in Mold?

Yes, Mold is covered, along with postcode districts CH7. We also cover nearby Buckley and Connah's Quay.

Why do houses in Clwyd crack?

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.

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.

Related work in Mold

Mining subsidence repairs near Mold

Holding an engineer’s repair scope for your Mold property? Send it over and we will price it item by item at no charge.