Retaining wall repairs in Crawley

Postcodes: RH10, RH11
Population: about 120,000
Area: West Sussex
Pricing region: South East

Is West Sussex prone to ground movement?

Crawley (RH10, RH11) has around 120,000 residents and sits in West Sussex. Neighbouring towns we cover: Horley (4 miles), Horsham (7 miles) and East Grinstead (8 miles).

Much of West Sussex sits on clay that shrinks in dry summers and swells in wet winters. Ground movement here is more often linked to soils, drains and trees than to mining. Across West Sussex, most homes are Wealden cottages, 1930s semis and bungalows on the coast, and new-town estates in Crawley.

What to look for before calling about retaining wall repairs

Water seeping through joints, or white salt staining, after rain
Horizontal or stepped cracks running along the face of the wall
Wall leaning forward, or bulging out in the middle of its length

Retaining wall repairs prices in Crawley

Prices in Crawley 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.

Guide prices inc VAT on South East rates. Items marked est. are our estimates.
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

How we usually approach retaining wall repairs

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

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

What happens during retaining wall repairs, step by step?

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.
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.

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.

Questions about retaining wall repairs in Crawley

What is the price of retaining wall repairs in Crawley?

Guide prices for retaining wall repairs in Crawley 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 Crawley?

Yes, Crawley is covered, along with postcode districts RH10, RH11. We also cover nearby Horley and Horsham.

Does the ground around Crawley 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.

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.

Is a leaning retaining wall dangerous?

It can be, especially if the lean is getting worse, the wall is tall, or there is a path, drive or building next to it. A wall that has leaned slightly for decades may be stable, but one that has moved recently should be kept clear and assessed soon.

More repairs we carry out in Crawley

Retaining wall repairs near Crawley

Get a free initial assessment of a bulging or cracked retaining wall in Crawley from your photos or a call, before the next wet spell.