Magherafelt · County Londonderry
Wall tie replacement in Magherafelt
For landlords with older housing stock in Magherafelt, wall ties are worth checking before the cracks appear. A short survey on each elevation gives you a clear record and a priced plan if replacement is needed.
Guide price from£1,600per house inc VAT

- Postcodes
- BT45
- Population
- about 9,000
- Area
- County Londonderry
- Pricing region
- Northern Ireland
Is County Londonderry prone to ground movement?
With roughly 9,000 people, Magherafelt spans postcode districts BT45 in County Londonderry. Nearby, we also cover Cookstown (9 miles), Ballymena (15 miles) and Antrim (16 miles).
Clay shrinkage is less of a concern in County Londonderry, so other causes such as drains, poor footings or older walls are checked first. Ground movement here is more often linked to soils, drains and trees than to mining. What you mostly find across County Londonderry: Georgian and Victorian houses in Derry, brick terraces and post-war estates.
Wall tie replacement prices in Magherafelt
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.
| Item | Guide price | Per |
|---|---|---|
| Mid-terrace houseest. | £1,600 – £3,100 | per house |
| Semi-detached house | £2,200 – £4,400 | per house |
| Detached houseest. | £3,100 – £6,150 | per house |
| Scaffolding where neededest. | £530 – £1,600 | per elevation |
How we usually approach wall tie replacement
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
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
What happens during wall tie replacement, step by step?
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.
Report and quote
You receive a written summary of what the survey found on each elevation, which walls need new ties, whether old ties should be isolated or removed, and a no-obligation written quote with scaffold shown separately.
Deal with the old ties and make good
Old ties are isolated or removed where the report calls for it, cracked joints are raked out and repointed, and drilled holes are filled in matching mortar. A written note of tie positions and findings goes in your property file.
What to look for before calling about wall tie replacement
- Outer brickwork bowing or bulging, often worst near the top
- Mortar joints that look wider or opened up on one elevation
- Horizontal cracks along mortar joints, repeating every few brick courses
Rules 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.
Questions about wall tie replacement in Magherafelt
How much should I budget for wall tie replacement in Magherafelt?
Guide prices for wall tie replacement in Magherafelt start from about £1,600 per house, 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 Magherafelt?
We do. Magherafelt and the surrounding area are covered, including nearby Cookstown and Ballymena. A free initial assessment from your photos is the first step.
Why do houses in County Londonderry crack?
County Londonderry has basalt, older hard rock and glacial deposits, with soft river ground along the Foyle and Bann. Only an investigation can say why a particular building has moved.
How do I know if my wall ties have failed?
The clearest sign is horizontal cracking in the mortar joints repeating every few courses, often with a bulge or a lifted roofline. Wire ties can fail with no cracking at all, so a tie survey with a metal detector and borescope is the only reliable check.
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.
Related work in Magherafelt
- Underpinning
- Gable end wall repairs
- Extension pulling away repairs
- Roof structure repairs
- Structural surveys and crack monitoring
Wall tie replacement near Magherafelt
Suspect failed wall ties in Magherafelt? We offer a free initial assessment from your photos or a call, and a fixed price after the tie survey.