Lisburn · County Antrim
Structural crack repairs in Lisburn
If you have found a crack in a wall at your Lisburn property, the first job is to work out why it appeared. Our crack repairs start with the cause, so the stitching, repointing or rebuilding that follows has a fair chance of lasting.
Guide price from£70per metre of crack 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?
Lisburn is in County Antrim and takes in postcode districts BT17, BT27, BT28. About 78,000 people live there. Nearby, we also cover 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. What you mostly find across County Antrim: red-brick terraces in Belfast, Victorian villas, and post-war and newer estates.
Guide prices for structural crack repairs in Lisburn
Guide prices below are for homes in Lisburn, on Northern Ireland rates and including VAT. A survey or good photos let us turn them into a fixed written price.
| 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
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
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
From first photo to finished repair
Survey and record
On site we measure the width along the crack, note its pattern and check nearby drains, trees and openings. If the cause is unclear, gauges can be fixed across it and read over several months.
Written quote
You receive a no-obligation written quote listing each crack, the repair method chosen for it and the making good inside and out. Once the scope is settled, that becomes a fixed price in writing.
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.
Symptoms that point to structural crack repairs
- A crack noticeably wider at the top than the bottom, or the reverse
- Diagonal cracks running from the corners of windows and doors
- Stepped cracks zigzagging through the mortar joints of outside brickwork
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
What is the price of structural crack repairs in Lisburn?
Guide prices for structural crack repairs in Lisburn 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 carry out structural crack repairs in Lisburn?
Yes. We take enquiries from across Lisburn, including BT17, BT27, BT28, and from nearby places such as Belfast and Newtownabbey. Send photos for a free initial view and we will tell you what happens next.
Does the ground around Lisburn cause cracking?
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.
Can I just fill a crack and paint over it?
You can fill a fine crack that is not moving, and for many hairline cracks that is the right repair. Filling a crack that is still opening hides the evidence, and it will usually come back. If a filled crack returns within a year or two, have it assessed.
Should I tell my insurer about cracks in my house?
Yes, if you think the cracks could come from subsidence or heave, tell your insurer before any permanent repair, because repairing first can make a claim harder to prove. Cracks from normal shrinkage or ageing are not usually covered, and the insurer decides which applies.
More repairs we carry out in Lisburn
- Crack stitching
- Roof structure repairs
- Lintel replacement
- Extension pulling away repairs
- Subsidence repairs
Structural crack repairs near Lisburn
Worried about a crack in Lisburn? Photograph it with a tape measure across it, send it over, and we will tell you plainly whether it needs repair.