Corby · Northamptonshire
Subsidence repairs in Corby
Tapered cracks around the windows or doors of a Corby home are worth taking seriously without assuming the worst. In most cases the cause can be found and removed, and the house then needs crack stitching and making good rather than new foundations.
Guide price from£2,450per property inc VAT
- Postcodes
- NN17, NN18
- Population
- about 68,000
- Area
- Northamptonshire
- Pricing region
- East Midlands
How do local ground conditions affect subsidence repairs in Corby?
We cover Corby and its postcode districts NN17, NN18, part of Northamptonshire, with a population of roughly 68,000. Nearby, we also cover Uppingham (6 miles), Kettering (7 miles) and Market Harborough (10 miles).
Much of Northamptonshire sits on clay that shrinks in dry summers and swells in wet winters. 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.
What to look for before calling about subsidence repairs
- Wallpaper rippling or tearing where the wall meets the ceiling
- Fresh cracks showing on both the inside and outside of one wall
- Cracks that open in summer and partly close again in winter
Subsidence repairs prices in Corby
The ranges below reflect typical East Midlands costs for subsidence repairs, including VAT. Scaffold, access and making good can push a job to the top of the range.
| Item | Guide price | Per |
|---|---|---|
| Structural engineer's investigation and report | £490 – £1,950 | per property |
| CCTV drain survey (common first check) | £145 – £345 | per survey |
| Typical repair once the cause is dealt with: crack stitching and making goodest. | £2,450 – £11,800 | per property |
| Foundation strengthening where it is needed (see underpinning) | £980 – £3,450 | per metre of wall |
How we usually approach subsidence repairs
Remove the cause, then repair
Most subsidence is dealt with this way. The drain is repaired or the vegetation managed, the house is watched to confirm it has stabilised, and then the cracks are stitched, repointed and made good inside. It is the least disruptive route and usually the cheapest.
Best for: Clay movement or drain leaks where the cause can be removed
Foundation strengthening
Where the ground cannot be made stable, the load is carried down to firmer soil by underpinning, a beam-and-base scheme, mini-piles or resin injection, depending on the soil and access. It is designed by an engineer and is the exception, not the rule.
Best for: Ongoing movement where removing the cause has not worked
What happens during subsidence repairs, step by step?
Send photos or call
Send photos of the cracks with a coin or tape for scale, and say when you first noticed them. We give a free initial assessment and suggest whether an engineer, a drain survey or your insurer comes first.
Find the cause
An independent chartered structural engineer inspects the house and, where needed, arranges a drain survey, trial pits or soil tests. We can arrange the engineer. The aim is to know what is moving, and why, before money goes on repairs.
Deal with the cause
Drains are repaired, vegetation is managed on the engineer’s advice, or a foundation scheme is designed if nothing else will work. Where monitoring is recommended, readings run for several months to show the movement has stopped.
Rules for subsidence repairs in England
In England, underpinning and other work that alters or strengthens a wall or foundation is building work under the Building Regulations (Part A, structure), so building control approves and inspects it. Like-for-like repairs often are not, and we tell you which applies before a price is agreed. Work to a party wall, or excavation close to a neighbour’s foundations, can also need a notice under the Party Wall etc. Act 1996.
Questions about subsidence repairs in Corby
What is the price of subsidence repairs in Corby?
Guide prices for subsidence repairs in Corby start from about £2,450 per property, 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.
Do you carry out subsidence repairs in Corby?
Yes. We take enquiries from across Corby, including NN17, NN18, and from nearby places such as Uppingham and Kettering. Send photos for a free initial view and we will tell you what happens next.
Does the ground around Corby 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. Only an investigation can say why a particular building has moved.
How long should I wait before repairing subsidence cracks?
Usually until the cause has been dealt with and the engineer is satisfied that movement has stopped. On clay that can mean watching the house through a summer and a winter. Repairing too early risks the same cracks opening again.
How do I know if cracks are subsidence?
Subsidence cracks are usually tapered, run diagonally from door and window corners, and show on both faces of the wall. Fine vertical cracks in new plaster are more often shrinkage. An engineer’s inspection, sometimes with monitoring, is the reliable way to tell.
More repairs we carry out in Corby
Subsidence repairs near Corby
Worried about movement at your Corby property? Share photos or ring for a free initial assessment before you spend anything on investigations.