Mining subsidence repairs in Flint

Postcodes: CH6
Population: about 26,000
Area: Clwyd
Pricing region: Wales

Is Clwyd prone to ground movement?

Flint, Clwyd: about 26,000 residents across postcode districts CH6. Nearby places we cover include Connah's Quay (5 miles), Mold (5 miles) and Buckley (6 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. Housing stock in Clwyd: Brick colliery terraces, seaside villas in Rhyl and Colwyn Bay, and post-war estates.

What to expect when we carry out mining subsidence repairs

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.
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.

Is it time for mining subsidence repairs? Common signs

Damage that does not change with the seasons
The whole house leaning slightly, with doors swinging open
Steps or ridges forming in paths, kerbs or garden walls

What should you budget for mining subsidence repairs in Flint?

Prices in Flint are worked out on Wales rates. They include VAT and are a starting point: access, the extent of the damage and whether an engineer or building control is involved all move the figure.

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	—

Repair options we may recommend

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

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

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.

Your mining subsidence repairs questions

What is the price of mining subsidence repairs in Flint?

Guide prices for mining subsidence repairs in Flint 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 Flint?

Yes. We take enquiries from across Flint, including CH6, and from nearby places such as Connah's Quay and Mold. Send photos for a free initial view and we will tell you what happens next.

Does the ground around Flint cause cracking?

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.

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.

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 Flint

Mining subsidence repairs near Flint

Call us about cracking or ground movement in Flint, or send photos, and we will explain the likely next steps and a guide price.