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Lisburn · County Antrim

Bowing wall repairs in Lisburn

When a wall at a Lisburn property starts to belly outward, the important question is whether it is still moving. We look at the shape, the floors and the roof, then recommend restraint, an engineer’s view or both.

Guide price from£880per wall inc VAT

Gable wall of an end-terrace with round restraint tie plates fixed through it
Postcodes
BT17, BT27, BT28
Population
about 78,000
Area
County Antrim
Pricing region
Northern Ireland

What should you know about the ground under Lisburn?

Postcode districts BT17, BT27, BT28 cover Lisburn, a County Antrim town of about 78,000 people. We also take enquiries from nearby Belfast (7 miles), Newtownabbey (11 miles) and Craigavon (15 miles).

Clay shrinkage is less of a concern in County Antrim, so other causes such as drains, poor footings or older walls are checked first. Historic brine and salt working has caused ground movement in parts of County Antrim in the past. Housing stock in County Antrim: Red-brick terraces in Belfast, Victorian villas, and post-war and newer estates.

Bowing wall repairs prices in Lisburn

Prices in Lisburn are worked out on Northern Ireland rates. They include VAT and are a starting point: access, the extent of the damage and whether an engineer or building control is involved all move the figure.

Guide prices inc VAT on Northern Ireland rates. Items marked est. are our estimates.
ItemGuide pricePer
Lateral restraint for a typical gable£880 – £2,650per wall
Remedial restraint ties installed£20 – £55per tie
Partial rebuild of a badly distorted sectionest.£2,650 – £7,050per section

How we usually approach bowing wall repairs

Partial rebuild

A section that has bowed beyond safe limits, or where bricks have crushed, is propped, taken down and rebuilt plumb with restraint built in. It is the most disruptive option, so it is kept to the area that genuinely needs it.

Best for: Badly distorted sections that cannot be tied back

Restraint ties into the floor

Stainless restraint ties are drilled through the wall and fixed into the floor joists or into blocking between them. Where joists run parallel, noggins are fitted across several joists so the tie has something solid to hold. A neat plate or a buried fixing is left on the outside face.

Best for: Walls bowing at floor level where joists run alongside

What happens during bowing wall repairs, step by step?

  1. Assess the bow

    We look at where the wall bows, how far it is out of plumb and how the floors and roof meet it. Photographs from your phone held flat against the wall often show the shape clearly before anyone visits.

  2. Decide restrain or rebuild

    If the wall is badly out of plumb, has bricks crushing or follows removed internal walls, we recommend an engineer, and can arrange one. Their view sets whether restraint is enough or a section needs rebuilding.

  3. Open up inside

    Floorboards or a ceiling strip are lifted along the affected wall to expose the joists. We fit noggins where joists run alongside, and plan furniture moves with you, since this is the most disruptive part of the job.

What to look for before calling about bowing wall repairs

  • Gutters or the roof edge no longer lining up with the wall
  • Horizontal cracking at first-floor or ceiling level
  • Gaps opening between floorboards and the skirting on an outside wall

Rules for bowing wall repairs in Northern Ireland

In Northern Ireland, the Building Regulations (Northern Ireland) 2012 apply and the council’s building control service approves structural work such as underpinning; minor like-for-like repairs usually need no approval. The Party Wall Act does not apply in Northern Ireland, so work to shared walls depends on deeds and agreement with neighbours.

Questions about bowing wall repairs in Lisburn

What is the price of bowing wall repairs in Lisburn?

Guide prices for bowing wall repairs in Lisburn start from about £880 per wall, 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 bowing wall 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.

Will I need to move out during bowing wall repairs?

Usually not. Restraint work means lifting some floorboards or a strip of ceiling along one wall, so a room or two is disrupted for a few days. A partial rebuild of an external wall can be more involved, and we will talk it through with you first.

Does a bowing wall need an engineer?

Often it does, especially if the bow is large, growing or linked to removed internal walls or chimney breasts. Small, long-standing bows can sometimes be restrained to a standard detail. Where the repair needs an engineer’s design or sign-off, we can arrange an independent chartered structural engineer.

More repairs we carry out in Lisburn

Bowing wall repairs near Lisburn

A no-obligation written quote for a bowing wall in Lisburn sets out the ties, the straps and any rebuild as separate items.

Next step

Send us photos of the crack or movement

A free initial assessment from your photos, then a no-obligation written quote. If an engineer, drain survey or monitoring is needed first, we say so before you spend anything.

CallGet a quote