Daventry · Northamptonshire
Concrete repairs in Daventry
Where flats and houses in Daventry and across Northamptonshire have concrete balconies, canopies or lintels several decades old, carbonation has had time to reach the reinforcement. That is when spalling and straight-line cracking tend to appear.
Guide price from£85per m² inc VAT
- Postcodes
- NN11
- Population
- about 28,000
- Area
- Northamptonshire
- Pricing region
- East Midlands
What should you know about the ground under Daventry?
Postcode districts NN11 cover Daventry, a Northamptonshire town of about 28,000 people. Nearby, we also cover Rugby (9 miles), Northampton (12 miles) and Leamington Spa (15 miles).
Shrinkable clay is widespread in Northamptonshire. 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.
Concrete repairs prices in Daventry
Guide prices below are for homes in Daventry, on East Midlands rates and including VAT. A survey or good photos let us turn them into a fixed written price.
| 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 |
How we usually approach concrete repairs
Patch repair
Loose and contaminated concrete is broken out behind the bar, the steel is cleaned of rust and primed, and the section is rebuilt with a repair mortar. The edges are cut square so the patch does not feather out and fail. A protective coating may be applied over the whole surface afterwards.
Best for: Localised spalling around rusting bars
Protective coatings and sealing
After repair, an anti-carbonation coating, a waterproof deck membrane on a balcony, or a penetrating sealer slows the return of moisture and carbon dioxide. Restoring drips, upstands and falls so water drains away is as important as the coating itself.
Best for: Extending the life of repaired balconies and canopies
What happens during concrete repairs, step by step?
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.
What to look for before calling about concrete repairs
- Hollow sound when the surface is tapped with a hammer
- Damp patches, white deposits or drips on a balcony or canopy underside
- Fine cracks running in straight lines along the line of the reinforcement
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.
Questions about concrete repairs in Daventry
How much will concrete repairs cost in Daventry?
Guide prices for concrete repairs in Daventry 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 cover Daventry?
We do. Daventry and the surrounding area are covered, including nearby Rugby and Northampton. A free initial assessment from your photos is the first step.
Is the ground in Northamptonshire prone to subsidence?
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.
Can a concrete balcony be repaired rather than replaced?
In most cases, yes. Patch repairs, crack injection, a new waterproof deck and restored drips usually extend a balcony’s life considerably. Replacement is generally only needed where the steel has lost a lot of section or the balcony’s fixing to the building is compromised.
What is spalling concrete?
Spalling is concrete breaking away from the surface in flakes or chunks. In reinforced concrete it is usually caused by the steel inside rusting and expanding, which pushes the cover off. It often follows a straight line where a bar sits close to the surface, with rust staining nearby.
Other structural repairs in Daventry
- Lintel replacement
- Bowing wall repairs
- Subsidence insurance claim repairs
- Extension pulling away repairs
- Bay window subsidence repairs
Concrete repairs near Daventry
Send close-up and wide photos of the damaged concrete at your Daventry property for a free initial assessment and a no-obligation written quote.