Nelson · Mid Glamorgan
Wall tie replacement in Nelson
Plenty of cavity-walled houses, in Nelson as elsewhere, were built when galvanised steel ties were standard, and those ties are now reaching the end of their life. A survey shows whether yours are sound, thinning or actively swelling and cracking the brickwork.
Guide price from£1,650per house inc VAT
- Postcodes
- CF46, CF82
- Population
- about 13,000
- Area
- Mid Glamorgan
- Pricing region
- Wales
Why does the ground in Mid Glamorgan matter for wall tie replacement?
Postcode districts CF46, CF82 cover Nelson, a Mid Glamorgan town of about 13,000 people. We also take enquiries from nearby Blackwood (3 miles), Pontypridd (4 miles) and Mountain Ash (5 miles).
Clay soils are found in parts of Mid Glamorgan. Historic coal workings are recorded beneath parts of Mid Glamorgan, and a coal mining search is worth checking where movement is unexplained. Housing stock in Mid Glamorgan: Long stone and brick terraces on valley sides, Victorian houses in Bridgend and post-war estates.
What happens during wall tie replacement, step by step?
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.
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.
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
- A house built before the 1980s on an exposed or coastal site
- Cracked render with a regular horizontal pattern
Wall tie replacement prices in Nelson
The ranges below reflect typical Wales 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. | £1,650 – £3,200 | per house |
| Semi-detached house | £2,300 – £4,600 | per house |
| Detached houseest. | £3,200 – £6,450 | per house |
| Scaffolding where neededest. | £550 – £1,650 | per elevation |
How we usually approach wall tie replacement
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
Rules for wall tie replacement in Wales
In Wales, small like-for-like repairs do not usually need approval, but work that alters or strengthens the structure needs building control under the Welsh Building Regulations, and the Party Wall etc. Act 1996 can apply to shared walls.
Questions about wall tie replacement in Nelson
What is the price of wall tie replacement in Nelson?
Guide prices for wall tie replacement in Nelson start from about £1,650 per house, including VAT, on Wales rates. Your fixed written price follows photos or a survey and depends on the extent of the work and access.
Do you carry out wall tie replacement in Nelson?
Yes. We take enquiries from across Nelson, including CF46, CF82, and from nearby places such as Blackwood and Pontypridd. Send photos for a free initial view and we will tell you what happens next.
Does the ground around Nelson cause cracking?
Mid Glamorgan lies on the South Wales coalfield, with dense historic workings, spoil tips and steep valley sides. Landslip, retaining walls and mining legacy are all live issues in the valleys. Only an investigation can say why a particular building has moved.
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.
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 Nelson
- Resin injection ground stabilisation
- Crack stitching
- Subsidence repairs
- Bowing wall repairs
- Extension pulling away repairs
Wall tie replacement near Nelson
If your Nelson home has a bulging outer wall, send photos from a few angles and we will help you decide what needs checking first.