Corby · Northamptonshire
Crack stitching in Corby
Many Corby homeowners find a crack that has been filled twice and reopened both times. That pattern usually means the masonry needs bonding back together, and helical bar stitching does exactly that once the movement behind it has ended.
Guide price from£80per metre of crack inc VAT
- Postcodes
- NN17, NN18
- Population
- about 68,000
- Area
- Northamptonshire
- Pricing region
- East Midlands
Why does the ground in Northamptonshire matter for crack stitching?
Corby, Northamptonshire: about 68,000 residents across postcode districts NN17, NN18. If you are just outside Corby, we also cover Uppingham (6 miles), Kettering (7 miles) and Market Harborough (10 miles).
Northamptonshire is one of the parts of the UK where clay soils are most likely to move with the seasons. Historic ironstone working has left disturbed ground in places. What you mostly find across Northamptonshire: ironstone and limestone cottages, Victorian terraces in Northampton and Kettering, and new-town estates in Corby.
Is it time for crack stitching? Common signs
- Stepped cracking beside a window, door or corner
- A crack visible on both the inside and outside face of the wall
- Bricks split clean through where the crack crosses them
What should you budget for crack stitching in Corby?
Prices in Corby are worked out on East Midlands 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 | £80 – £175 | per metre of crack |
| Small jobs (minimum visit)est. | £345 – £490 | per visit |
| Repointing over the stitched line in matching mortarest. | £30 – £60 | per metre |
Repair options we may recommend
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
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
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.
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
How much should I budget for crack stitching in Corby?
Guide prices for crack stitching in Corby start from about £80 per metre of crack, including VAT, on East Midlands 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 Corby?
Yes, Corby is covered, along with postcode districts NN17, NN18. We also cover nearby Uppingham and Kettering.
Why do houses in Northamptonshire crack?
Northamptonshire sits largely on Lias clay and Jurassic ironstones and limestones, with historic ironstone quarrying around Corby and Kettering. The clay vales are prone to shrinkage near trees. Only an investigation can say why a particular building has moved.
Is resin or cement grout better for crack stitching?
Neither is better in every case. Cement-based grout suits most walls and is kinder to soft, older bricks, while resin grout bonds faster and copes better with damp. The choice depends on the masonry, the conditions and any engineer’s specification.
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.
Related work in Corby
Crack stitching near Corby
Have a loss adjuster’s schedule for a Corby property? Send it over and we can price the crack stitching to it line by line.