Northamptonshire · England
Wall tie replacement in Northamptonshire
Looking for wall tie replacement in Northamptonshire? Send us photos for a free initial view. Northamptonshire is one of the parts of the UK where clay soils are most likely to move with the seasons, so we look at the ground, drains and nearby trees before recommending anything.
Guide price from£1,750per house inc VAT
- Area
- Northamptonshire
- Pricing region
- East Midlands
- Ground
- Shrinkable clay widespread
- Towns listed
- 6
What should you know about the ground under Northamptonshire?
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.
Historic ironstone working has left disturbed ground in places. Housing stock in Northamptonshire: Ironstone and limestone cottages, Victorian terraces in Northampton and Kettering, and new-town estates in Corby.
Wall tie replacement prices in Northamptonshire
The ranges below reflect typical East Midlands costs for wall tie replacement, including VAT. Scaffold, access and making good can push a job to the top of the range.
| Item | Guide price | Per |
|---|---|---|
| Mid-terrace houseest. | £1,750 – £3,450 | per house |
| Semi-detached house | £2,450 – £4,900 | per house |
| Detached houseest. | £3,450 – £6,850 | per house |
| Scaffolding where neededest. | £590 – £1,750 | per elevation |
How we usually approach wall tie replacement
Remedial tie installation
New stainless ties are drilled through the outer leaf into the inner leaf, then fixed by mechanical expansion or resin, depending on the masonry. They are placed to a set grid across each elevation, with extra ties around openings and at the edges. Holes are made good in matching mortar.
Best for: Walls where the original ties have failed or are missing
Partial rebuild of the outer leaf
If a section of the outer leaf has bulged too far to be tied back, it is carefully taken down and rebuilt with new ties built in as the work goes up. This is uncommon, and is usually limited to a gable top, a parapet or a panel under a window.
Best for: Outer leaf too distorted to tie back safely
Isolating the old ties
Where the old ties are swelling and cracking the brickwork, fitting new ties alone may not stop further damage. Each old tie can be isolated, usually by cutting it through within the cavity or sleeving its outer end, so it can no longer lift the outer leaf as it continues to corrode.
Best for: Thick mild steel ties still causing horizontal cracking
What happens during wall tie replacement, step by step?
Tie survey
A metal detector locates the existing ties and shows their pattern. Small holes are then drilled at sample points and a borescope passed into the cavity to see the tie condition, type and embedment. The holes are made good afterwards.
Report and quote
You receive a written summary of what the survey found on each elevation, which walls need new ties, whether old ties should be isolated or removed, and a no-obligation written quote with scaffold shown separately.
Install the new ties
New stainless ties are drilled and fixed to the specified grid, with closer spacing around windows, doors and the roofline. Sample ties can be pull-tested to confirm they are holding in your particular brick and block.
What to look for before calling about wall tie replacement
- Horizontal cracks along mortar joints, repeating every few brick courses
- A house built before the 1980s on an exposed or coastal site
- Mortar joints that look wider or opened up on one elevation
- The roof edge or verge lifting slightly above the brickwork
Do you need approval for wall tie replacement 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.
Wall tie replacement near you in Northamptonshire
Questions about wall tie replacement in Northamptonshire
Does the ground around Northampton cause cracking?
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. Historic ironstone working has left disturbed ground in places. Only an investigation on site can say why a particular building has moved.
How much will wall tie replacement cost in Northamptonshire?
On East Midlands rates, wall tie replacement starts from about £1,750 per house, including VAT. The written price depends on the extent of the damage, access and whether an engineer or building control is needed.
How do I know if my wall ties have failed?
The clearest sign is horizontal cracking in the mortar joints repeating every few courses, often with a bulge or a lifted roofline. Wire ties can fail with no cracking at all, so a tie survey with a metal detector and borescope is the only reliable check.
Is wall tie failure covered by insurance?
Usually not, because insurers treat it as gradual deterioration. Damage caused by a sudden event, such as part of a wall collapsing in a storm, may be treated differently under some policies. Check your policy wording, and tell your insurer if you are unsure.
Do all walls of the house need new ties?
Not necessarily, because ties often fail on one exposed elevation long before the others. The survey checks each wall, and the quote covers only the elevations where ties have failed or are close to it. Sheltered walls may simply be noted for future checks.