Horsham · West Sussex
Retaining wall repairs in Horsham
Wondering whether a bowed garden wall in Horsham 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£560per wall inc VAT
- Postcodes
- RH12
- Population
- about 51,000
- Area
- West Sussex
- Pricing region
- South East
What should you know about the ground under Horsham?
With roughly 51,000 people, Horsham spans postcode districts RH12 in West Sussex. Nearby places we cover include Crawley (7 miles), Horley (11 miles) and Haywards Heath (11 miles).
Shrinkable clay is widespread in West Sussex. Ground movement here is more often linked to soils, drains and trees than to mining. Housing stock in West Sussex: Wealden cottages, 1930s semis and bungalows on the coast, and new-town estates in Crawley.
Is it time for retaining wall repairs? Common signs
- Water seeping through joints, or white salt staining, after rain
- Horizontal or stepped cracks running along the face of the wall
- Ground cracking or sinking along the top of the wall
What should you budget for retaining wall repairs in Horsham?
Prices in Horsham are worked out on South East 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 | £560 – £2,250 | per wall |
| Structural repair or partial rebuild | £3,350 – £16,800 | per wall |
| New retaining wall | £225 – £505 | per m² of wall face |
Repair options we may recommend
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 to expect when we carry out retaining wall repairs
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.
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 Horsham?
Guide prices for retaining wall repairs in Horsham start from about £560 per wall, including VAT, on South East 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 Horsham?
Yes. We take enquiries from across Horsham, including RH12, and from nearby places such as Crawley and Horley. Send photos for a free initial view and we will tell you what happens next.
Does the ground around Horsham cause cracking?
North West Sussex around Crawley and Horsham sits on Weald Clay, the South Downs are chalk, and the coastal plain has brickearth and gravels. The Weald Clay is prone to shrink-swell movement near trees. 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.
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.
More repairs we carry out in Horsham
- Boundary and garden wall repairs
- Crack stitching
- Lintel replacement
- Structural surveys and crack monitoring
- Brick arch repairs
Retaining wall repairs near Horsham
Send photos of the whole wall and its end profile at your Horsham property for a free initial assessment and a no-obligation written quote.