Larne · County Antrim
Retaining wall repairs in Larne
On sloping plots in Larne and across County Antrim, many retaining walls were built decades ago with little thought for drainage. As the soil stays wet and roots grow, those walls start to lean, and the lean usually speeds up rather than slows.
Guide price from£440per wall inc VAT
- Postcodes
- BT40
- Population
- about 18,000
- Area
- County Antrim
- Pricing region
- Northern Ireland
How do local ground conditions affect retaining wall repairs in Larne?
Larne is in County Antrim and takes in postcode districts BT40. About 18,000 people live there. Nearby places we cover include Carrickfergus (9 miles), Newtownabbey (14 miles) and Belfast (18 miles).
Most of County Antrim is on firmer ground than the clay belts of the south-east. Historic brine and salt working has caused ground movement in parts of County Antrim in the past. Across County Antrim, most homes are red-brick terraces in Belfast, Victorian villas, and post-war and newer estates.
Retaining wall repairs prices in Larne
These are guide prices for Larne, using Northern Ireland rates and including VAT. Your written quote follows photos or a survey, and is fixed once the repair is specified.
| Item | Guide price | Per |
|---|---|---|
| Minor repairs and drainage | £440 – £1,750 | per wall |
| Structural repair or partial rebuild | £2,650 – £13,200 | per wall |
| New retaining wall | £175 – £395 | per m² of wall face |
How we usually approach retaining wall repairs
Rebuilding on new footings
Where the whole wall is failing, it is replaced with a new retaining wall on a properly sized footing, with free-draining backfill, a membrane, weep holes and a drain at the base. Reinforced blockwork faced in brick or stone is common, so the wall matches its surroundings.
Best for: Walls failing along their length, or retaining significant height
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 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.
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.
What to look for before calling about retaining wall repairs
- No weep holes, or weep holes that never seem to drain
- Horizontal or stepped cracks running along the face of the wall
- Bricks or blocks pushed out of line, or coping stones sliding off
Rules for retaining wall repairs in Northern Ireland
In Northern Ireland, the Building Regulations (Northern Ireland) 2012 apply and the council’s building control service approves structural work such as underpinning; minor like-for-like repairs usually need no approval. The Party Wall Act does not apply in Northern Ireland, so work to shared walls depends on deeds and agreement with neighbours.
Questions about retaining wall repairs in Larne
How much will retaining wall repairs cost in Larne?
Guide prices for retaining wall repairs in Larne start from about £440 per wall, including VAT, on Northern Ireland rates. Your fixed written price follows photos or a survey and depends on the extent of the work and access.
Do you cover Larne?
Yes. We take enquiries from across Larne, including BT40, and from nearby places such as Carrickfergus and Newtownabbey. Send photos for a free initial view and we will tell you what happens next.
Is the ground in County Antrim prone to subsidence?
County Antrim is largely basalt over chalk, with soft estuarine 'sleech' along Belfast Lough that is notorious for settlement. Historic salt mining is recorded near Carrickfergus. Only an investigation can say why a particular building has moved.
Does home insurance cover a collapsed garden retaining wall?
Often not, because many policies exclude garden walls unless the house is damaged by the same event, and gradual failure is usually excluded. A collapse caused by landslip or a sudden escape of water may be treated differently. Check your schedule and tell your insurer before permanent repairs start.
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.
Other structural repairs in Larne
- Subsidence insurance claim repairs
- Structural surveys and crack monitoring
- Chimney stack repairs
- Underpinning
- Roof structure repairs
Retaining wall repairs near Larne
The written quote for your Larne retaining wall sets out excavation, footing, drainage and rebuild, then becomes a fixed price in writing once the repair is specified.