Colwyn Bay · Clwyd
Retaining wall repairs in Colwyn Bay
Whether it is a terraced lawn, a sunken patio or a drive cut into a bank, a failing retaining wall in Colwyn Bay 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
- LL28, LL29
- Population
- about 29,000
- Area
- Clwyd
- Pricing region
- Wales
Why does the ground in Clwyd matter for retaining wall repairs?
Colwyn Bay (LL28, LL29) has around 29,000 residents and sits in Clwyd. Neighbouring towns we cover: Llandudno (5 miles), Abergele (6 miles) and Rhyl (10 miles).
Clwyd has a mix of ground, with clay in some places and firmer rock in others. Parts of Clwyd lie on a former coalfield, so a coal mining search is worth checking if movement has no obvious cause. Across Clwyd, most homes are brick colliery terraces, seaside villas in Rhyl and Colwyn Bay, and post-war estates.
How we usually approach 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
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
What happens during retaining wall repairs, step by step?
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.
Site assessment
On site we measure height and lean, check the drainage and the ground at the top and bottom, and look at access for digging out. Walls that support a drive, path or building, or retain more than a modest height, are referred to an engineer.
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.
What to look for before calling about retaining wall repairs
- Bricks or blocks pushed out of line, or coping stones sliding off
- Ground cracking or sinking along the top of the wall
- No weep holes, or weep holes that never seem to drain
Retaining wall repairs prices in Colwyn Bay
Prices in Colwyn Bay 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 |
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.
Questions about retaining wall repairs in Colwyn Bay
How much should I budget for retaining wall repairs in Colwyn Bay?
Guide prices for retaining wall repairs in Colwyn Bay 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 Colwyn Bay?
We do. Colwyn Bay and the surrounding area are covered, including nearby Llandudno and Abergele. A free initial assessment from your photos is the first step.
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.
Can a bulging retaining wall be saved?
Sometimes, if the bulge is small, the wall is low and the cause is mainly poor drainage. Improving drainage and repairing the face may stop further movement. A wall that has bulged a lot, cracked through or moved at its base usually needs that section rebuilding on a proper footing.
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 Colwyn Bay
Retaining wall repairs near Colwyn Bay
For a guide price on retaining wall repairs in Colwyn Bay, use the quote tool or send photos with the wall’s rough height and what sits behind it.