Abercarn · Gwent
Retaining wall repairs in Abercarn
Whether it is a terraced lawn, a sunken patio or a drive cut into a bank, a failing retaining wall in Abercarn needs drainage, a proper footing and enough strength for its height. We price the repair once the wall and its load are understood.
Guide price from£460per wall inc VAT
- Postcodes
- NP11
- Population
- about 10,000
- Area
- Gwent
- Pricing region
- Wales
What is the ground like in Gwent?
Postcode districts NP11 cover Abercarn, a Gwent town of about 10,000 people. Nearby, we also cover Risca (3 miles), Blackwood (3 miles) and Cwmbran (5 miles).
Gwent has a mix of ground, with clay in some places and firmer rock in others. Historic coal workings are recorded beneath parts of Gwent, and a coal mining search is worth checking where movement is unexplained. Housing stock in Gwent: Valley terraces on steep hillsides, Victorian houses in Newport and Abergavenny, and post-war estates.
From first photo to finished repair
Engineer’s design
Where the wall needs it, an independent chartered structural engineer is appointed to design the repair or new wall, including footing, thickness, reinforcement and drainage. We can arrange this, and the design forms the basis of the quote.
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.
Symptoms that point to retaining wall repairs
- Ground cracking or sinking along the top of the wall
- No weep holes, or weep holes that never seem to drain
- Horizontal or stepped cracks running along the face of the wall
Guide prices for retaining wall repairs in Abercarn
Prices in Abercarn 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.
| 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 |
Methods for retaining wall repairs
Temporary support and reducing load
While a repair is designed and programmed, a dangerous wall may be propped, or soil and loads near the top removed to reduce the push. Moving parked cars or a shed back from the wall is sometimes the simplest first step.
Best for: Walls that are moving now and need making safe
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
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.
Frequently asked questions
How much should I budget for retaining wall repairs in Abercarn?
Guide prices for retaining wall repairs in Abercarn 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.
Can you survey a property in Abercarn?
Yes, Abercarn is covered, along with postcode districts NP11. We also cover nearby Risca and Blackwood.
Why do houses in Gwent crack?
The valleys of Blaenau Gwent, Torfaen and Islwyn lie on the South Wales coalfield with extensive historic workings and spoil tips, while Newport and Monmouthshire have Mercia Mudstone, alluvium and Old Red Sandstone. Only an investigation can say why a particular building has moved.
Is a leaning retaining wall dangerous?
It can be, especially if the lean is getting worse, the wall is tall, or there is a path, drive or building next to it. A wall that has leaned slightly for decades may be stable, but one that has moved recently should be kept clear and assessed soon.
How long does a retaining wall rebuild take?
Drainage and minor repairs usually take a day or two. Rebuilding a garden retaining wall on new footings typically takes one to three weeks, depending on its length, height, access for digging and any wait for the engineer’s design or inspections.
Related work in Abercarn
- Roof structure repairs
- Subsidence insurance claim repairs
- Gable end wall repairs
- Subsidence repairs
- Concrete repairs
Retaining wall repairs near Abercarn
The written quote for your Abercarn retaining wall sets out excavation, footing, drainage and rebuild, then becomes a fixed price in writing once the repair is specified.