Tonbridge · Kent
Crack stitching in Tonbridge
For stitching work in Tonbridge, the details decide how long the repair lasts: slot depth, bar length, grout type and a mortar that matches. We price each crack individually, so you can see where the money goes.
Guide price from£90per metre of crack inc VAT
- Postcodes
- TN9, TN10, TN11
- Population
- about 36,000
- Area
- Kent
- Pricing region
- South East
Is Kent prone to ground movement?
Tonbridge is in Kent and takes in postcode districts TN9, TN10, TN11. About 36,000 people live there. Nearby, we also cover Tunbridge Wells (4 miles), Sevenoaks (6 miles) and Crowborough (10 miles).
Kent is one of the parts of the UK where clay soils are most likely to move with the seasons. Parts of Kent lie on a former coalfield, so a coal mining search is worth checking if movement has no obvious cause. Typical buildings in Kent: Victorian terraces in the Medway towns, weatherboarded and Wealden houses, 1930s semis and seaside bungalows.
Methods for crack stitching
Helical bars in cementitious grout
The most common approach. A slot is cut along the bed joint with a twin-blade cutter, flushed out and part filled with a cement-based grout. The helical bar is pushed in, more grout is packed over it, and the joint is pointed to match. The grout cures over a few days.
Best for: Most brick and block walls, including older softer bricks
Helical bars in resin grout
A resin grout bonds quickly and strongly to the bar and masonry and suits wet conditions or work that must take load sooner. It is less forgiving of soft or crumbly bricks, so the choice of grout is made wall by wall rather than as a rule.
Best for: Dense bricks, damp walls and repairs needing a fast cure
From first photo to finished repair
Confirm the cause has stopped
Before quoting we check what made the wall crack and whether it is still moving. If there is doubt, we suggest a period of monitoring or an engineer’s view, rather than stitching a crack that will simply open again.
Set out the bars
Bar positions are marked across the crack, typically every few courses up its full height, with each bar extending well into sound brickwork on both sides. An engineer’s specification, where there is one, sets the exact spacing and length.
Repoint to match
The cut joints and crack are pointed in a mortar chosen to match the colour, texture and strength of the existing work. On older houses with soft bricks, a lime mortar is used so the repair does not trap moisture.
Symptoms that point to crack stitching
- Filled cracks that keep reopening along the same line
- A crack visible on both the inside and outside face of the wall
- Bricks split clean through where the crack crosses them
Guide prices for crack stitching in Tonbridge
Prices in Tonbridge 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 |
|---|---|---|
| Crack stitching with stainless helical bars | £90 – £200 | per metre of crack |
| Small jobs (minimum visit)est. | £390 – £560 | per visit |
| Repointing over the stitched line in matching mortarest. | £35 – £65 | per metre |
Rules for crack stitching in England
Like-for-like repairs such as crack stitching and repointing do not usually need building control approval in England, but anything that changes or strengthens the structure, such as underpinning or rebuilding a wall, does. If the work touches a party wall, the Party Wall etc. Act 1996 may apply.
Frequently asked questions
How much will crack stitching cost in Tonbridge?
Guide prices for crack stitching in Tonbridge start from about £90 per metre of crack, 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 cover Tonbridge?
We do. Tonbridge and the surrounding area are covered, including nearby Tunbridge Wells and Sevenoaks. A free initial assessment from your photos is the first step.
Is the ground in Kent prone to subsidence?
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 crack stitching stop a wall moving?
No, crack stitching reconnects cracked masonry but does not stop the movement that caused it. If the ground is still shrinking, a drain is still leaking or ties are still rusting, a stitched wall can crack again nearby. The cause has to be identified and dealt with first.
Can I stitch a crack myself?
It is possible on a small, stable crack, but the work involves cutting into joints with a twin-blade cutter, controlling silica dust and placing the bars correctly. If the crack is part of an insurance claim or is wide, have it assessed first, because a poor repair can hide ongoing movement.
Other structural repairs in Tonbridge
- Boundary and garden wall repairs
- Gable end wall repairs
- Bowing wall repairs
- Lintel replacement
- Structural surveys and crack monitoring
Crack stitching near Tonbridge
Have a loss adjuster’s schedule for a Tonbridge property? Send it over and we can price the crack stitching to it line by line.