Northampton · Northamptonshire
Concrete repairs in Northampton
Concrete repairs in Northampton begin with finding out how far the damage goes, not just patching what has already fallen off. Tapping the surface for hollow areas and checking the exposed steel tells us how much needs cutting out and rebuilding.
Guide price from£85per m² inc VAT
- Postcodes
- NN1, NN2, NN3, NN4, NN7
- Population
- about 250,000
- Area
- Northamptonshire
- Pricing region
- East Midlands
Is Northamptonshire prone to ground movement?
Northampton (NN1, NN2, NN3, NN4, NN7) has around 250,000 residents and sits in Northamptonshire. Nearby places we cover include Wellingborough (9 miles), Daventry (12 miles) and Rushden (12 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. Typical buildings in Northamptonshire: Ironstone and limestone cottages, Victorian terraces in Northampton and Kettering, and new-town estates in Corby.
Guide prices for concrete repairs in Northampton
Prices in Northampton 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 |
|---|---|---|
| Concrete patch repair | £85 – £175 | per m² |
| Crack injection | £175 – £470 | per metre |
| Small jobs (minimum visit)est. | £440 – £880 | per visit |
Methods for concrete repairs
Crack injection
Cracks are sealed at the surface, then a low-viscosity resin is injected under pressure through ports until it fills the crack. A rigid resin bonds the two faces back together, while a flexible one seals live cracks against water. The choice depends on whether the crack is still moving.
Best for: Cracks letting water in, or splitting a slab or beam
Recasting or strengthening
Where steel has lost much of its section, or a lintel or canopy is too far gone to patch, the element is propped and rebuilt, replaced or strengthened to an engineer’s design. It is less common, but sometimes the more lasting option for small canopies and old precast lintels.
Best for: Badly corroded lintels, canopies and balcony edges
From first photo to finished repair
Engineer where needed
If the steel has lost significant section, or the element carries a balcony, stair or wall, an independent chartered structural engineer is appointed to assess and specify. We can arrange this, and the repair follows their scope.
Written quote
You receive a no-obligation written quote setting out the estimated area of patching, the length of crack injection, coatings and access. It becomes a fixed price in writing once the repair is specified, with any re-measure terms stated clearly.
Break out, repair, protect
Damaged concrete is cut back to sound material, steel cleaned and primed, and the section rebuilt and cured. Cracks are injected, then the surface is coated and drainage details put right so water runs off rather than sitting.
Symptoms that point to concrete repairs
- Fine cracks running in straight lines along the line of the reinforcement
- Damp patches, white deposits or drips on a balcony or canopy underside
- Hollow sound when the surface is tapped with a hammer
Rules for concrete repairs 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
What is the price of concrete repairs in Northampton?
Guide prices for concrete repairs in Northampton start from about £85 per m², 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 concrete repairs in Northampton?
Yes, Northampton is covered, along with postcode districts NN1, NN2, NN3, NN4. We also cover nearby Wellingborough and Daventry.
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. Only an investigation can say why a particular building has moved.
Why does concrete crack and rust?
Concrete cracks as it shrinks, moves with temperature or carries more load than intended. Steel inside it rusts when carbonation or salts reach it and moisture gets in. The two feed each other: cracks let water in, and rusting steel expands and cracks the concrete further.
Can you repair a cracked concrete lintel?
Often, yes. Spalling and small cracks in a concrete lintel can be patch repaired and the steel treated. If the lintel is badly cracked, sagging or the bars have lost much of their section, replacement is usually better, and the opening is propped while it is done.
More repairs we carry out in Northampton
- Wall tie replacement
- Roof structure repairs
- Boundary and garden wall repairs
- Structural surveys and crack monitoring
- Bay window subsidence repairs
Concrete repairs near Northampton
For a guide price on concrete repairs in Northampton, use the quote tool or send photos showing the spalling, any exposed steel and the drainage.