Barry · South Glamorgan
Retaining wall repairs in Barry
A garden retaining wall in Barry holds back far more weight than it looks, and the push increases every time the soil behind it gets wet. Most leaning or bulging walls turn out to have poor drainage, thin construction or shallow footings, often all three.
Guide price from£460per wall inc VAT

- Postcodes
- CF62, CF63
- Population
- about 55,000
- Area
- South Glamorgan
- Pricing region
- Wales
What is the ground like in South Glamorgan?
Postcode districts CF62, CF63 cover Barry, a South Glamorgan town of about 55,000 people. Nearby places we cover include Penarth (5 miles), Cardiff (7 miles) and Llantwit Major (9 miles).
Clay soils are found in parts of South Glamorgan. Ground movement here is more often linked to soils, drains and trees than to mining. Typical buildings in South Glamorgan: Victorian terraces in Cardiff and Penarth, inter-war semis and post-war estates.
Signs you may need retaining wall repairs
- Bricks or blocks pushed out of line, or coping stones sliding off
- Water seeping through joints, or white salt staining, after rain
- No weep holes, or weep holes that never seem to drain
How much will retaining wall repairs cost in Barry?
The ranges below reflect typical Wales costs for retaining wall repairs, including VAT. Scaffold, access and making good can push a job to the top of the range.
| Item | Guide price | Per |
|---|---|---|
| Minor repairs and drainage | £460 – £1,850 | per wall |
| Structural repair or partial rebuild | £2,750 – £13,800 | per wall |
| New retaining wall | £185 – £415 | per m² of wall face |
Which repair method suits a home in Barry?
Structural repair and partial rebuild
A leaning or bulging section is taken down, the soil behind dug out and supported, and the wall rebuilt on a new footing with drainage and, where specified, reinforcement tied into the sound wall either side. The engineer’s design sets footing size and wall thickness.
Best for: A section that has moved while the rest stays sound
Drainage and minor repairs
Blocked weep holes are cleared or new ones drilled, and where practical a drainage layer is formed behind the wall with an outlet at its base. Loose copings are rebedded, open joints repointed and a few damaged bricks replaced. For a low wall that has not moved much, this can be enough.
Best for: Low walls that are damp or slightly weathered but still upright
What happens when we carry out retaining wall repairs in Barry?
Photos and measurements
Send photos of the whole wall from the front and the end, so any lean shows, plus close-ups of cracks and weep holes. Tell us roughly how tall it is and what sits at the top, such as lawn, patio, drive or a building.
Written quote
You receive a no-obligation written quote covering demolition, excavation, temporary support, the footing, the new or repaired wall, drainage and spoil removal. It becomes a fixed price in writing once the repair is specified.
Build and drain
The failing section is taken down, the soil supported in short lengths, and the footing cast. The wall is rebuilt with drainage behind it, backfilled with free-draining material, and building control inspects where the work needs it.
Rules for retaining wall 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.
Retaining wall repairs in Barry: questions and answers
How much will retaining wall repairs cost in Barry?
Guide prices for retaining wall repairs in Barry start from about £460 per wall, 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 Barry?
Yes, Barry is covered, along with postcode districts CF62, CF63. We also cover nearby Penarth and Cardiff.
Is the ground in South Glamorgan prone to subsidence?
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. Only an investigation can say why a particular building has moved.
Do I need an engineer for a retaining wall?
For low walls holding back a planting bed, often not. Walls retaining more than a modest height, often taken as more than about a metre, or supporting a drive, path, building or neighbour’s land, generally need an engineer’s design. An independent chartered structural engineer is appointed where needed, and we can arrange this.
What are weep holes in a retaining wall?
Weep holes are small openings near the base of a retaining wall that let water drain out from the soil behind it. Without them, water builds up and adds hydrostatic pressure that can push the wall over. They work best with a drainage layer behind the wall, and they need to be kept clear.
Other structural repairs in Barry
- Bay window subsidence repairs
- Structural crack repairs
- Boundary and garden wall repairs
- Wall tie replacement
- Bowing wall repairs
Retaining wall repairs near Barry
Retaining wall leaning in Barry? Keep the area below clear, send us photos, and we will tell you whether it needs an engineer’s design.