Holyhead · Gwynedd
Concrete repairs in Holyhead
From a cracked canopy over a shop door to a spalling lintel on a house, concrete repairs in Holyhead 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
- LL65
- Population
- about 11,000
- Area
- Gwynedd
- Pricing region
- Wales
How do local ground conditions affect concrete repairs in Holyhead?
We cover Holyhead and its postcode districts LL65, part of Gwynedd, with a population of roughly 11,000. Neighbouring towns we cover: Llangefni (14 miles), Caernarfon (19 miles) and Bangor (21 miles).
Shrinkable clay is less common in Gwynedd than in south-east England. Old metal-mine shafts and workings are recorded in places, so mining searches are routine for some properties. Housing stock in Gwynedd: Slate and stone terraces, chapels and cottages, Victorian seaside houses and post-war estates.
Symptoms that point to concrete repairs
- Chunks or flakes of concrete breaking away from edges and soffits
- Hollow sound when the surface is tapped with a hammer
- Rust-coloured stains or streaks running down the concrete surface
Guide prices for concrete repairs in Holyhead
These are guide prices for Holyhead, using Wales rates and including VAT. Your written quote follows photos or a survey, and is fixed once the repair is specified.
| 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 |
Methods for 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
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
Photos and a description
Send photos of the damage close up and from a distance, plus the whole balcony, canopy or elevation. Tell us roughly how old the building is and whether anything has fallen, so we can judge whether to make it safe first.
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.
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.
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 Holyhead?
Guide prices for concrete repairs in Holyhead 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 Holyhead?
Yes. We take enquiries from across Holyhead, including LL65, and from nearby places such as Llangefni and Caernarfon. Send photos for a free initial view and we will tell you what happens next.
Why do houses in Gwynedd crack?
Gwynedd and Anglesey are mostly hard rock with glacial deposits, so clay shrinkage is uncommon. Historic slate quarrying and metal mining have left tips and workings in places. 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 Holyhead
- Boundary and garden wall repairs
- Retaining wall repairs
- Subsidence repairs
- Roof structure repairs
- Crack stitching
Concrete repairs near Holyhead
Concrete falling from a balcony or canopy in Holyhead? Fence off the area below, send us photos, and we will advise on making it safe and repairing it.