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County Down · Northern Ireland

Wall tie replacement in County Down

Homes in County Down are mostly Victorian seaside houses in Bangor and Holywood. That matters for wall tie replacement: footings, wall construction and mortar all vary with the age of the building. Clay shrinkage is less of a concern in County Down, so other causes such as drains, poor footings or older walls are checked first.

Guide price from£1,600per house inc VAT

Drilling a mortar joint for a remedial wall tie on a 1960s cavity wall
Area
County Down
Pricing region
Northern Ireland
Ground
Mostly firmer ground
Towns listed
6

What is the ground like in County Down?

County Down is mostly drumlin till over older rock and granite in the Mournes, with soft estuarine ground around Belfast Lough and Strangford.

Ground movement here is more often linked to soils, drains and trees than to mining. What you mostly find across County Down: Victorian seaside houses in Bangor and Holywood, brick terraces and post-war estates.

How much will wall tie replacement cost in County Down?

The ranges below reflect typical Northern Ireland costs for wall tie replacement, including VAT. Scaffold, access and making good can push a job to the top of the range.

Guide prices inc VAT on Northern Ireland rates. Items marked est. are our estimates.
ItemGuide pricePer
Mid-terrace houseest.£1,600 – £3,100per house
Semi-detached house£2,200 – £4,400per house
Detached houseest.£3,100 – £6,150per house
Scaffolding where neededest.£530 – £1,600per elevation

Which repair method suits a home in County Down?

Removing old ties and rebedding

On badly cracked elevations the old ties are cut out from the outer face, the joints raked and rebedded, and the brickwork repointed. It is more work than isolation but removes the source of expansion entirely. An engineer or the survey report usually specifies where this is needed.

Best for: Elevations with severe cracking or lifting

Partial rebuild of the outer leaf

If a section of the outer leaf has bulged too far to be tied back, it is carefully taken down and rebuilt with new ties built in as the work goes up. This is uncommon, and is usually limited to a gable top, a parapet or a panel under a window.

Best for: Outer leaf too distorted to tie back safely

Remedial tie installation

New stainless ties are drilled through the outer leaf into the inner leaf, then fixed by mechanical expansion or resin, depending on the masonry. They are placed to a set grid across each elevation, with extra ties around openings and at the edges. Holes are made good in matching mortar.

Best for: Walls where the original ties have failed or are missing

What happens when we carry out wall tie replacement in County Down?

  1. Tie survey

    A metal detector locates the existing ties and shows their pattern. Small holes are then drilled at sample points and a borescope passed into the cavity to see the tie condition, type and embedment. The holes are made good afterwards.

  2. Access

    Ties are fitted across the whole of each affected elevation, so scaffold or a tower is usually needed above ground floor. We plan access around conservatories, extensions, neighbours’ land and any parking that must be suspended.

  3. Install the new ties

    New stainless ties are drilled and fixed to the specified grid, with closer spacing around windows, doors and the roofline. Sample ties can be pull-tested to confirm they are holding in your particular brick and block.

Signs you may need wall tie replacement

  • Mortar joints that look wider or opened up on one elevation
  • Horizontal cracks along mortar joints, repeating every few brick courses
  • A house built before the 1980s on an exposed or coastal site
  • Cracked render with a regular horizontal pattern
Wall tie replacement: corroded ties isolated and new remedial ties fixed across the cavityCAVITYOLD TIECORRODEDNEW REMEDIALTIEINDICATIVE · NOT TO SCALE
Wall tie replacement: corroded ties isolated and new remedial ties fixed across the cavity. Indicative drawing, not to scale.

Do you need approval for wall tie replacement 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.

Wall tie replacement near you in County Down

Wall tie replacement in County Down: questions and answers

Does the ground around Bangor cause cracking?

County Down is mostly drumlin till over older rock and granite in the Mournes, with soft estuarine ground around Belfast Lough and Strangford. Ground movement here is more often linked to soils, drains and trees than to mining. Only an investigation on site can say why a particular building has moved.

How much will wall tie replacement cost in County Down?

On Northern Ireland rates, wall tie replacement starts from about £1,600 per house, including VAT. The written price depends on the extent of the damage, access and whether an engineer or building control is needed.

Can wall ties be replaced on a rendered house?

Yes, new ties can be fitted through render, with each drill hole made good afterwards. The repairs can show on painted render, so redecoration of the affected elevation is often worth including. Render can also hide the cracking pattern, so a survey matters more.

Do all walls of the house need new ties?

Not necessarily, because ties often fail on one exposed elevation long before the others. The survey checks each wall, and the quote covers only the elevations where ties have failed or are close to it. Sheltered walls may simply be noted for future checks.

Which houses are most at risk of wall tie failure?

Cavity-walled houses built before the 1980s are most at risk, especially those with mild steel ties, black ash mortar or an exposed position. Coastal and hilltop houses, and elevations facing the prevailing weather, tend to fail first.

More repairs we carry out in County Down

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