Dartford · Kent
Bowing wall repairs in Dartford
Sighting along a wall at your Dartford home and seeing a curve can be unsettling. Send us photos with a level held against it, and we will explain what is likely holding it, or not, and what the repair involves.
Guide price from£1,100per wall inc VAT
- Postcodes
- DA1
- Population
- about 51,000
- Area
- Kent
- Pricing region
- South East
Is Kent prone to ground movement?
Dartford is in Kent and takes in postcode districts DA1. About 51,000 people live there. Nearby places we cover include Bexley (3 miles), Swanley (4 miles) and Swanscombe (4 miles).
Shrinkable clay is widespread in Kent. Parts of Kent lie on a former coalfield, so a coal mining search is worth checking if movement has no obvious cause. What you mostly find across Kent: Victorian terraces in the Medway towns, weatherboarded and Wealden houses, 1930s semis and seaside bungalows.
Symptoms that point to bowing wall repairs
- Window frames pulling away from the brickwork at the sides
- Gaps opening between floorboards and the skirting on an outside wall
- Internal plaster cracks where a wall meets the ceiling
Guide prices for bowing wall repairs in Dartford
Prices in Dartford 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 |
|---|---|---|
| Lateral restraint for a typical gable | £1,100 – £3,350 | per wall |
| Remedial restraint ties installed | £30 – £65 | per tie |
| Partial rebuild of a badly distorted sectionest. | £3,350 – £8,950 | per section |
Methods for bowing wall repairs
Stitching a delaminating wall
Where the layers of a solid wall have separated, long stainless ties are drilled in from the face and bonded into the inner layer to bind the wall together again. This is often combined with restraint ties, so the wall is both reconnected through its thickness and tied back to the structure.
Best for: Solid walls where the outer layer has pulled away
Restraint ties into the floor
Stainless restraint ties are drilled through the wall and fixed into the floor joists or into blocking between them. Where joists run parallel, noggins are fitted across several joists so the tie has something solid to hold. A neat plate or a buried fixing is left on the outside face.
Best for: Walls bowing at floor level where joists run alongside
From first photo to finished repair
Assess the bow
We look at where the wall bows, how far it is out of plumb and how the floors and roof meet it. Photographs from your phone held flat against the wall often show the shape clearly before anyone visits.
Decide restrain or rebuild
If the wall is badly out of plumb, has bricks crushing or follows removed internal walls, we recommend an engineer, and can arrange one. Their view sets whether restraint is enough or a section needs rebuilding.
Fit the ties and straps
Ties are drilled through and fixed, or straps fitted and secured, at the spacing specified. Any rebuild is carried out at this stage, with temporary propping in place until the new brickwork has gained strength.
Rules for bowing 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 should I budget for bowing wall repairs in Dartford?
Guide prices for bowing wall repairs in Dartford start from about £1,100 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.
Can you survey a property in Dartford?
Yes, Dartford is covered, along with postcode districts DA1. We also cover nearby Bexley and Swanley.
Why do houses in Kent crack?
North Kent sits on London Clay, central Kent on Gault and Weald Clays and the Downs on chalk, so shrinkable clay is widespread. East Kent around Deal and Dover had a small deep coalfield, worked until the late 1980s. Only an investigation can say why a particular building has moved.
Does a bowing wall need an engineer?
Often it does, especially if the bow is large, growing or linked to removed internal walls or chimney breasts. Small, long-standing bows can sometimes be restrained to a standard detail. Where the repair needs an engineer’s design or sign-off, we can arrange an independent chartered structural engineer.
How do I know if my wall is bowing?
Hold a long spirit level or a taut string against the wall and look for a gap in the middle. From inside, gaps between floorboards and skirting on an outside wall are a common clue. Photos showing the gap help us judge it before a visit.
Related work in Dartford
- Resin injection ground stabilisation
- Gable end wall repairs
- Boundary and garden wall repairs
- Crack stitching
- Brick arch repairs
Bowing wall repairs near Dartford
If a wall in Dartford began bowing after building work next door, dated photos help us suggest who should look at it first.