Andover · Hampshire
Concrete repairs in Andover
If rust stains or loose concrete have appeared on your Andover property, it is worth acting before pieces fall. Patch repair, crack injection and a protective coating usually restore balconies, canopies and lintels without replacing them.
Guide price from£95per m² inc VAT

- Postcodes
- SP10
- Population
- about 42,000
- Area
- Hampshire
- Pricing region
- South East
What should you know about the ground under Andover?
Andover, Hampshire: about 42,000 residents across postcode districts SP10. Neighbouring towns we cover: Winchester (13 miles), Newbury (15 miles) and Romsey (15 miles).
Shrinkable clay is widespread in Hampshire. Ground movement here is more often linked to soils, drains and trees than to mining. Housing stock in Hampshire: Victorian terraces in Portsmouth and Southampton, 1930s semis, and large post-war and new-build estates.
How much will concrete repairs cost in Andover?
Guide prices below are for homes in Andover, on South East 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 | £95 – £200 | per m² |
| Crack injection | £200 – £540 | per metre |
| Small jobs (minimum visit)est. | £505 – £1,000 | per visit |
Which repair method suits a home in Andover?
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
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 when we carry out concrete repairs in Andover?
Survey and tapping test
On site we tap the surface to find hollow areas, check the steel where it is exposed and note drainage. Where the extent is unclear, a cover meter, carbonation test or chloride test may be advised before repair.
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.
Signs you may need concrete repairs
- Exposed steel bars showing where concrete has fallen away
- 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.
Concrete repairs in Andover: questions and answers
How much should I budget for concrete repairs in Andover?
Guide prices for concrete repairs in Andover start from about £95 per m², including VAT, on South East 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 Andover?
Yes. We take enquiries from across Andover, including SP10, and from nearby places such as Winchester and Newbury. Send photos for a free initial view and we will tell you what happens next.
Why do houses in Hampshire crack?
Central Hampshire is chalk, while the south around Portsmouth, Southampton and the New Forest fringe and the north-east around Farnborough sit on London Clay, Reading Beds and other clays and sands. The clay areas see seasonal movement near trees. Only an investigation can say why a particular building has moved.
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.
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.
Related work in Andover
- Resin injection ground stabilisation
- Boundary and garden wall repairs
- Lintel replacement
- Brick arch repairs
- Floor joist repairs
Concrete repairs near Andover
Concrete falling from a balcony or canopy in Andover? Fence off the area below, send us photos, and we will advise on making it safe and repairing it.