Carrickfergus · County Antrim
Structural crack repairs in Carrickfergus
A cracked wall in Carrickfergus does not automatically mean subsidence. Thermal movement, rusting wall ties, tired lintels and old drains each leave their own pattern, and we look at the whole picture before recommending any repair to the brickwork.
Guide price from£70per metre of crack inc VAT
- Postcodes
- BT38
- Population
- about 29,000
- Area
- County Antrim
- Pricing region
- Northern Ireland
What should you know about the ground under Carrickfergus?
Carrickfergus (BT38) has around 29,000 residents and sits in County Antrim. Nearby places we cover include Newtownabbey (6 miles), Larne (9 miles) and Belfast (10 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. Across County Antrim, most homes are red-brick terraces in Belfast, Victorian villas, and post-war and newer estates.
Symptoms that point to structural crack repairs
- Diagonal cracks running from the corners of windows and doors
- Cracks that reappear in the same place after filling and painting
- A crack noticeably wider at the top than the bottom, or the reverse
Guide prices for structural crack repairs in Carrickfergus
These are guide prices for Carrickfergus, 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 |
|---|---|---|
| Crack stitching with helical bars | £70 – £160 | per metre of crack |
| Single crack, outside only (up to about 2 m)est. | £350 – £790 | per crack |
| Internal making good and redecoration of the crack lineest. | £130 – £440 | per room |
Methods for structural crack repairs
Crack stitching with helical bars
Stainless steel helical bars are grouted into slots cut along the bed joints, bridging the crack so the masonry works as one piece again. It is the standard repair for wider stepped and vertical cracks once whatever caused them has stopped.
Best for: Stable cracks wider than about 5 mm, or ones that keep reopening
Filling and repointing
For hairline and narrow cracks that have stopped moving, the crack line is raked out and repointed in mortar matched to the original for strength, colour and texture. Inside, plaster cracks are cut out, filled with a flexible filler and redecorated.
Best for: Cracks up to about 5 mm that are no longer moving
From first photo to finished repair
Send photos
Photograph the crack from a distance and close up, with a coin or tape measure for scale. From these we say whether it looks cosmetic, needs a visit or calls for an engineer.
Deal with the cause
Leaking drains, failed ties, a sagging lintel or ground movement are put right first, sometimes through an insurance claim. Repairing a crack before its cause is fixed usually means paying for the same job twice.
Repair and make good
Cracks are stitched, repointed or rebuilt as specified, with mortar matched to the existing wall. Internal crack lines are filled and redecorated where included, and you get a written note of what was done.
Rules for structural crack 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.
Frequently asked questions
How much will structural crack repairs cost in Carrickfergus?
Guide prices for structural crack repairs in Carrickfergus start from about £70 per metre of crack, 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.
Do you cover Carrickfergus?
We do. Carrickfergus and the surrounding area are covered, including nearby Newtownabbey and Larne. A free initial assessment from your photos is the first step.
Is the ground in County Antrim prone to subsidence?
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.
When is a crack in a wall structural?
A crack is more likely to be structural when it is wider than about 5 mm, tapers, passes through the whole wall or keeps growing. BRE Digest 251 treats damage up to about 5 mm as aesthetic and over 25 mm as a stability concern. Width is a guide, not a diagnosis.
Do I need a structural engineer for a cracked wall?
Not always, since many cracks can be judged from photos and a visit. An engineer is worthwhile when cracks are wide, tapered, growing or part of a claim. Where the repair needs an engineer’s design or sign-off, an independent chartered structural engineer is appointed, and we can arrange this.
Other structural repairs in Carrickfergus
- Structural surveys and crack monitoring
- Wall tie replacement
- Extension pulling away repairs
- Boundary and garden wall repairs
- Subsidence repairs
Structural crack repairs near Carrickfergus
Each crack at your Carrickfergus property is priced separately in our written quote, so you can see exactly what you are paying for and why.