Weymouth · Dorset
Retaining wall repairs in Weymouth
On sloping plots in Weymouth and across Dorset, 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£515per wall inc VAT
- Postcodes
- DT3, DT4
- Population
- about 53,000
- Area
- Dorset
- Pricing region
- South West
What is the ground like in Dorset?
We cover Weymouth and its postcode districts DT3, DT4, part of Dorset, with a population of roughly 53,000. Nearby, we also cover Dorchester (7 miles), Poole (22 miles) and Yeovil (24 miles).
Dorset 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. What you mostly find across Dorset: stone and brick villages, Victorian villas in Bournemouth, and inter-war and post-war semis.
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
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
From first photo to finished repair
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.
Symptoms that point to retaining wall repairs
- Wall leaning forward, or bulging out in the middle of its length
- Water seeping through joints, or white salt staining, after rain
- Ground cracking or sinking along the top of the wall
Guide prices for retaining wall repairs in Weymouth
Prices in Weymouth are worked out on South West 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 | £515 – £2,050 | per wall |
| Structural repair or partial rebuild | £3,100 – £15,400 | per wall |
| New retaining wall | £205 – £465 | per m² of wall face |
Rules for retaining wall repairs in England
In England, underpinning and other work that alters or strengthens a wall or foundation is building work under the Building Regulations (Part A, structure), so building control approves and inspects it. Like-for-like repairs often are not, and we tell you which applies before a price is agreed. Work to a party wall, or excavation close to a neighbour’s foundations, can also need a notice under the Party Wall etc. Act 1996.
Frequently asked questions
How much will retaining wall repairs cost in Weymouth?
Guide prices for retaining wall repairs in Weymouth start from about £515 per wall, including VAT, on South West rates. Your fixed written price follows photos or a survey and depends on the extent of the work and access.
Do you cover Weymouth?
Yes, Weymouth is covered, along with postcode districts DT3, DT4. We also cover nearby Dorchester and Poole.
Is the ground in Dorset prone to subsidence?
Dorset mixes chalk downs, Oxford and Kimmeridge Clays in the vales, and the sands and gravels of the Poole basin. Clay vales can shrink and swell, and parts of the coast are known for landslip. 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 Weymouth
- Floor joist repairs
- Gable end wall repairs
- Lintel replacement
- Boundary and garden wall repairs
- Bowing wall repairs
Retaining wall repairs near Weymouth
If an engineer has already designed a new retaining wall for your Weymouth property, send the drawings and we will price building it.