Wales
Structural repairs in South Glamorgan
Structural repairs across South Glamorgan: subsidence, cracks, underpinning, wall ties, lintels and claim repairs. Parts of South Glamorgan have clay that can shrink near trees in dry spells.
- Nation
- Wales
- Pricing region
- Wales
- Towns listed
- 4
- Mining legacy
- Not a major factor
What is the ground like in South Glamorgan?
Cardiff is built on Mercia Mudstone, river gravels and alluvium, and the Vale of Glamorgan on Lias limestone and clay. Soft alluvium near the rivers and docks can settle.
Ground movement here is more often linked to soils, drains and trees than to mining.
What usually causes cracking in South Glamorgan?
These are the things we most often check for in South Glamorgan. The repair only lasts if the cause has stopped.
- Pockets of shrinkable clay, mainly where large trees grow close to the house
- Shallow footings and corroded wall ties in older brick houses
- Bay windows built on shallower footings than the main walls
- Garden and boundary walls leaning as tree roots and frost get to them
- Extensions and bays moving differently from the main house
What kind of buildings are common here?
Victorian terraces in Cardiff and Penarth, inter-war semis and post-war estates.
Which repairs do we carry out in South Glamorgan?
- Structural crack repairs
- Boundary and garden wall repairs
- Gable end wall repairs
- Resin injection ground stabilisation
- Retaining wall repairs
- Floor joist repairs
- Subsidence insurance claim repairs
- Crack stitching
- Subsidence repairs
- Concrete repairs
- Brick arch repairs
- Underpinning
- Chimney stack repairs
- Bowing wall repairs
- Wall tie replacement
- Roof structure repairs
- Lintel replacement
- Structural surveys and crack monitoring
- Extension pulling away repairs
- Bay window subsidence repairs
Guide prices in South Glamorgan
A selection of guide prices on Wales rates, including VAT. Each repair page has the full table.
| Item | Guide price | Per |
|---|---|---|
| Crack stitching: crack stitching with stainless helical bars | £75 – £165 | per metre of crack |
| Resin injection ground stabilisation: resin injection ground stabilisation | £735 – £1,400 | per metre of wall treated |
| Wall tie replacement: semi-detached house | £2,300 – £4,600 | per house |
| Structural surveys and crack monitoring: structural engineer's inspection and report | £460 – £1,850 | per property |
Towns we cover in South Glamorgan
We list 4 towns in South Glamorgan, covering 7 postcode districts in the CF postcode area. The largest are Cardiff (about 370,000 people), Barry (about 55,000 people) and Penarth (about 23,000 people). Each town page has local postcodes, nearby places and the repairs we carry out there.
Do repairs in South Glamorgan need approval?
Most crack repairs in Wales need no approval; foundation work does. We confirm which applies before a price is agreed.
Questions about structural repairs in South Glamorgan
Do you cover the whole of South Glamorgan?
Yes. We take enquiries from across South Glamorgan, including Cardiff, Barry, Penarth and Llantwit Major. A free initial assessment from your photos is the first step.
Is South Glamorgan affected by subsidence?
South Glamorgan has a mix of ground, with clay in some places and firmer rock in others. Ground movement here is more often linked to soils, drains and trees than to mining. Whether a particular building has moved, and why, needs an investigation on site.
How much do structural repairs cost in South Glamorgan?
It depends on the repair. On Wales rates, crack stitching from about £75 per metre of crack and wall tie replacement on a semi-detached house from about £2,300 per house, including VAT. Your written price follows photos or a survey.
What should I send for a free assessment in South Glamorgan?
Photos of each crack inside and out with a coin or tape for scale, a wider shot showing where it is on the building, your postcode in South Glamorgan, and when you first noticed it. If an insurer is involved, include the claim reference.