Dunoon · Argyll and Bute
Concrete repairs in Dunoon
Where flats and houses in Dunoon and across Argyll and Bute 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£80per m² inc VAT
- Postcodes
- PA23
- Population
- about 8,000
- Area
- Argyll and Bute
- Pricing region
- Scotland
Why does the ground in Argyll and Bute matter for concrete repairs?
Dunoon, Argyll and Bute: about 8,000 residents across postcode districts PA23. We also take enquiries from nearby Helensburgh (9 miles), Largs (11 miles) and Alexandria (13 miles).
Clay shrinkage is less of a concern in Argyll and Bute, so other causes such as drains, poor footings or older walls are checked first. Ground movement here is more often linked to soils, drains and trees than to mining. Across Argyll and Bute, most homes are Victorian villas, stone terraces and cottages, and post-war estates.
Concrete repairs prices in Dunoon
For Dunoon we use Scotland rates. Treat the table as a budget guide, inc VAT; the price you pay is the one on your written quote.
| Item | Guide price | Per |
|---|---|---|
| Concrete patch repair | £80 – £170 | per m² |
| Crack injection | £170 – £455 | per metre |
| Small jobs (minimum visit)est. | £430 – £855 | per visit |
How we usually approach 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
What happens during concrete repairs, step by step?
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.
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.
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
- Chunks or flakes of concrete breaking away from edges and soffits
- Rust-coloured stains or streaks running down the concrete surface
Rules for concrete repairs in Scotland
In Scotland, small repairs often do not need a building warrant, but structural alterations and strengthening generally do. Check with the council’s building standards service if unsure; there is no Party Wall Act in Scotland.
Questions about concrete repairs in Dunoon
How much will concrete repairs cost in Dunoon?
Guide prices for concrete repairs in Dunoon start from about £80 per m², including VAT, on Scotland rates. Your fixed written price follows photos or a survey and depends on the extent of the work and access.
Do you cover Dunoon?
Survey visits to Dunoon are by arrangement because of travel and access. We can still give a free initial view from photos, and we tell you any travel cost before a visit is booked.
Is the ground in Argyll and Bute prone to subsidence?
Argyll is hard rock with thin glacial soils and raised beaches along the coast; mainland towns such as Helensburgh and Oban sit on steep coastal slopes. 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.
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 Dunoon
- Boundary and garden wall repairs
- Subsidence repairs
- Crack stitching
- Roof structure repairs
- Gable end wall repairs
Concrete repairs near Dunoon
For a guide price on concrete repairs in Dunoon, use the quote tool or send photos showing the spalling, any exposed steel and the drainage.