Lisburn · County Antrim
Concrete repairs in Lisburn
If rust stains or loose concrete have appeared on your Lisburn 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£75per m² inc VAT
- Postcodes
- BT17, BT27, BT28
- Population
- about 78,000
- Area
- County Antrim
- Pricing region
- Northern Ireland
What is the ground like in County Antrim?
Postcode districts BT17, BT27, BT28 cover Lisburn, a County Antrim town of about 78,000 people. Nearby places we cover include Belfast (7 miles), Newtownabbey (11 miles) and Craigavon (15 miles).
Shrinkable clay is less common in County Antrim than in south-east England. Historic brine and salt working has caused ground movement in parts of County Antrim in the past. Typical buildings in County Antrim: Red-brick terraces in Belfast, Victorian villas, and post-war and newer estates.
How much will concrete repairs cost in Lisburn?
These are guide prices for Lisburn, using Northern Ireland 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 | £75 – £160 | per m² |
| Crack injection | £160 – £420 | per metre |
| Small jobs (minimum visit)est. | £395 – £790 | per visit |
Which repair method suits a home in Lisburn?
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
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
What happens when we carry out concrete repairs in Lisburn?
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.
Signs you may need concrete repairs
- Damp patches, white deposits or drips on a balcony or canopy underside
- Chunks or flakes of concrete breaking away from edges and soffits
- Hollow sound when the surface is tapped with a hammer
Rules for concrete repairs in Northern Ireland
In Northern Ireland, minor repairs usually need no approval, but structural work comes under the Building Regulations (Northern Ireland) 2012 and council building control. There is no Party Wall Act in Northern Ireland.
Concrete repairs in Lisburn: questions and answers
How much should I budget for concrete repairs in Lisburn?
Guide prices for concrete repairs in Lisburn start from about £75 per m², including VAT, on Northern Ireland 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 Lisburn?
We do. Lisburn and the surrounding area are covered, including nearby Belfast and Newtownabbey. A free initial assessment from your photos is the first step.
Why do houses in County Antrim crack?
County Antrim is largely basalt over chalk, with soft estuarine 'sleech' along Belfast Lough that is notorious for settlement. Historic salt mining is recorded near Carrickfergus. Only an investigation can say why a particular building has moved.
Is spalling concrete dangerous?
It can be, mainly because pieces may fall from balconies, canopies and soffits above doors or paths. It also means the steel is losing strength over time. Fence off the area below any loose concrete, keep people off a balcony that is badly affected, and have it assessed soon.
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.
Related work in Lisburn
- Floor joist repairs
- Bay window subsidence repairs
- Structural surveys and crack monitoring
- Underpinning
- Resin injection ground stabilisation
Concrete repairs near Lisburn
Send close-up and wide photos of the damaged concrete at your Lisburn property for a free initial assessment and a no-obligation written quote.