Swansea · West Glamorgan
Concrete repairs in Swansea
From a cracked canopy over a shop door to a spalling lintel on a house, concrete repairs in Swansea follow the same steps. Cut back to sound concrete, treat the steel, rebuild the section and stop water getting back in.
Guide price from£80per m² inc VAT
- Postcodes
- SA1, SA2, SA5
- Population
- about 300,000
- Area
- West Glamorgan
- Pricing region
- Wales
What is the ground like in West Glamorgan?
Swansea is in West Glamorgan and takes in postcode districts SA1, SA2, SA5. About 300,000 people live there. Neighbouring towns we cover: Clydach (5 miles), Gorseinon (5 miles) and Neath (7 miles).
Parts of West Glamorgan have clay that can shrink near trees in dry spells. Historic coal workings are recorded beneath parts of West Glamorgan, and a coal mining search is worth checking where movement is unexplained. Typical buildings in West Glamorgan: Hillside terraces, Victorian villas in Swansea and post-war estates.
Methods for concrete repairs
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
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
From first photo to finished repair
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.
Symptoms that point to concrete repairs
- Chunks or flakes of concrete breaking away from edges and soffits
- Rust-coloured stains or streaks running down the concrete surface
- Fine cracks running in straight lines along the line of the reinforcement
Guide prices for concrete repairs in Swansea
For Swansea we use Wales 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 – £165 | per m² |
| Crack injection | £165 – £440 | per metre |
| Small jobs (minimum visit)est. | £415 – £830 | per visit |
Rules for concrete repairs in Wales
In Wales, small like-for-like repairs do not usually need approval, but work that alters or strengthens the structure needs building control under the Welsh Building Regulations, and the Party Wall etc. Act 1996 can apply to shared walls.
Frequently asked questions
How much should I budget for concrete repairs in Swansea?
Guide prices for concrete repairs in Swansea start from about £80 per m², including VAT, on Wales 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 Swansea?
We do. Swansea and the surrounding area are covered, including nearby Clydach and Gorseinon. A free initial assessment from your photos is the first step.
Why do houses in West Glamorgan crack?
Swansea and Neath Port Talbot lie on the South Wales coalfield, with historic workings, tips and steep valley sides, and softer estuarine ground around the docks. 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 Swansea
- Bay window subsidence repairs
- Structural crack repairs
- Extension pulling away repairs
- Retaining wall repairs
- Subsidence insurance claim repairs
Concrete repairs near Swansea
The written quote for concrete repairs in Swansea sets out the estimated areas and lengths, then becomes a fixed price in writing once the repair is specified.