Penzance · Cornwall
Retaining wall repairs in Penzance
Wondering whether a bowed garden wall in Penzance can be repaired or must come down? The answer depends on height, the size of the bulge and whether the footing has moved, and photos usually tell us which it is likely to be.
Guide price from£515per wall inc VAT
- Postcodes
- TR18
- Population
- about 20,000
- Area
- Cornwall
- Pricing region
- South West
What should you know about the ground under Penzance?
Penzance is in Cornwall and takes in postcode districts TR18. About 20,000 people live there. Nearby places we cover include Camborne (12 miles), Redruth (16 miles) and Falmouth (21 miles).
Clay shrinkage is less of a concern in Cornwall, so other causes such as drains, poor footings or older walls are checked first. Old metal-mine shafts and workings are recorded in places, so mining searches are routine for some properties. Housing stock in Cornwall: Granite and slate-stone cottages, cob buildings, Victorian terraces and post-war estates.
What should you budget for retaining wall repairs in Penzance?
Guide prices below are for homes in Penzance, on South West rates and including VAT. A survey or good photos let us turn them into a fixed written price.
| 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 |
Repair options we may recommend
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
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
What to expect when we carry out retaining wall repairs
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.
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.
Is it time for retaining wall repairs? Common signs
- Ground cracking or sinking along the top of the wall
- No weep holes, or weep holes that never seem to drain
- Wall leaning forward, or bulging out in the middle of its length
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.
Your retaining wall repairs questions
What is the price of retaining wall repairs in Penzance?
Guide prices for retaining wall repairs in Penzance 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 carry out retaining wall repairs in Penzance?
Yes, Penzance is covered, along with postcode districts TR18. We also cover nearby Camborne and Redruth.
Does the ground around Penzance cause cracking?
Cornwall is mostly granite and slate with little shrinkable clay, so clay subsidence is less common than in the south-east. Historic tin and copper mining has left shafts and workings in places such as Camborne and Redruth, and mining searches are routine there. Only an investigation can say why a particular building has moved.
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.
Who is responsible for a retaining wall between two properties?
Usually the owner of the higher ground, because the wall holds up their land, but it depends on your title deeds and how the wall came to be built. Check the deeds first, take advice if it is unclear, and agree the repair with your neighbour before work starts.
More repairs we carry out in Penzance
- Floor joist repairs
- Brick arch repairs
- Structural surveys and crack monitoring
- Underpinning
- Wall tie replacement
Retaining wall repairs near Penzance
Get a free initial assessment of a bulging or cracked retaining wall in Penzance from your photos or a call, before the next wet spell.