Kingston upon Thames · Greater London
Crack stitching in Kingston upon Thames
Stitched repairs suit most brick and block walls in Kingston upon Thames, from older solid nine-inch walls to modern cavity construction. On soft historic brick we use lime mortar and grout chosen to suit it, so the repair does not damage the wall.
Guide price from£100per metre of crack inc VAT
- Postcodes
- KT1, KT2, KT3, KT4, KT5
- Population
- about 170,000
- Area
- Greater London
- Pricing region
- London
What is the ground like in Greater London?
We cover the whole of Kingston upon Thames, including postcode districts KT1, KT2, KT3, KT4, KT5; about 170,000 people live in the borough. Nearby places we cover include East Molesey (3 miles), Ewell (3 miles) and Esher (4 miles).
Greater London is one of the parts of the UK where clay soils are most likely to move with the seasons. Ground movement here is more often linked to soils, drains and trees than to mining. Typical buildings in Greater London: Victorian and Edwardian terraces with shallow footings, inter-war semis in the outer boroughs, and converted flats and mansion blocks.
Repair options we may recommend
Stitching with crack injection
Once the bars are in, the crack itself is filled. Fine cracks are pointed in matching mortar, while wider or deeper cracks can be injected with grout so the void inside the wall is filled rather than just the face. On older houses, lime mortar keeps the repair breathable.
Best for: Deep cracks running through the full thickness of the wall
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
What to expect when we carry out crack stitching
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.
Make good and record
Internal plaster cracks are cut out and filled where included, and dust is cleared. You receive a short note of where the bars went, which is useful for future buyers, surveyors and any insurance file.
Is it time for crack stitching? Common signs
- A crack you can fit a coin into, running through bricks and mortar
- Cracking that a surveyor or engineer has said is now stable
- Stepped cracking beside a window, door or corner
What should you budget for crack stitching in Kingston upon Thames?
The ranges below reflect typical London costs for crack stitching, including VAT. Scaffold, access and making good can push a job to the top of the range.
| Item | Guide price | Per |
|---|---|---|
| Crack stitching with stainless helical bars | £100 – £225 | per metre of crack |
| Small jobs (minimum visit)est. | £440 – £625 | per visit |
| Repointing over the stitched line in matching mortarest. | £40 – £75 | 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.
Your crack stitching questions
What is the price of crack stitching in Kingston upon Thames?
Guide prices for crack stitching in Kingston upon Thames start from about £100 per metre of crack, including VAT, on London rates. Your fixed written price follows photos or a survey and depends on the extent of the work and access.
Do you carry out crack stitching in Kingston upon Thames?
We do. Kingston upon Thames and the surrounding area are covered, including nearby East Molesey and Ewell. A free initial assessment from your photos is the first step.
Does the ground around Kingston upon Thames cause cracking?
Most of Greater London sits on London Clay, among the most shrinkage-prone ground in the UK, with river gravels along the Thames. Subsidence claims here are among the most frequent in the country, especially after dry summers and near street and garden trees. Only an investigation can say why a particular building has moved.
How far apart are helical bars placed?
Helical bars are usually placed every few courses up the full height of the crack, each one running well past the crack into sound brickwork. Spacing and bar length depend on the wall and the crack width, and where an engineer has specified the repair, their drawing sets them.
How long does crack stitching last?
Stainless steel bars do not rust, so a stitched repair in a stable wall should last as long as the surrounding brickwork. The repair only fails early when the wall keeps moving, which is why the cause is dealt with before the bars go in.
More repairs we carry out in Kingston upon Thames
- Retaining wall repairs
- Gable end wall repairs
- Subsidence repairs
- Bay window subsidence repairs
- Bowing wall repairs
Crack stitching near Kingston upon Thames
Have a loss adjuster’s schedule for a Kingston upon Thames property? Send it over and we can price the crack stitching to it line by line.