Corby · Northamptonshire
Wall tie replacement in Corby
For landlords with older housing stock in Corby, wall ties are worth checking before the cracks appear. A short survey on each elevation gives you a clear record and a priced plan if replacement is needed.
Guide price from£1,750per house inc VAT
- Postcodes
- NN17, NN18
- Population
- about 68,000
- Area
- Northamptonshire
- Pricing region
- East Midlands
How do local ground conditions affect wall tie replacement in Corby?
With roughly 68,000 people, Corby spans postcode districts NN17, NN18 in Northamptonshire. We also take enquiries from nearby Uppingham (6 miles), Kettering (7 miles) and Market Harborough (10 miles).
Shrinkable clay is widespread in Northamptonshire. 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.
Guide prices for wall tie replacement in Corby
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 |
Methods for 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
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
From first photo to finished repair
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.
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.
Deal with the old ties and make good
Old ties are isolated or removed where the report calls for it, cracked joints are raked out and repointed, and drilled holes are filled in matching mortar. A written note of tie positions and findings goes in your property file.
Symptoms that point to wall tie replacement
- 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
Rules 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.
Frequently asked questions
How much should I budget for wall tie replacement in Corby?
Guide prices for wall tie replacement in Corby start from about £1,750 per house, 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.
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.
Related work in Corby
- Bowing wall repairs
- Floor joist repairs
- Boundary and garden wall repairs
- Extension pulling away repairs
- Gable end wall repairs
Wall tie replacement near Corby
Need a report for a buyer or lender in Corby? Send us the valuation comment and we will explain what a tie survey and quote would cover.