Cwmbran · Gwent
Wall tie replacement in Cwmbran
The first clue to failing wall ties in Cwmbran is usually a crack pattern: fine horizontal lines every few courses on one elevation. We confirm what is happening inside the cavity with a metal detector and borescope before recommending any new ties.
Guide price from£1,650per house inc VAT
- Postcodes
- NP44
- Population
- about 49,000
- Area
- Gwent
- Pricing region
- Wales
What is the ground like in Gwent?
We cover Cwmbran and its postcode districts NP44, part of Gwent, with a population of roughly 49,000. If you are just outside Cwmbran, we also cover Pontypool (3 miles), Risca (5 miles) and Newport (5 miles).
Parts of Gwent have clay that can shrink near trees in dry spells. Historic coal workings are recorded beneath parts of Gwent, and a coal mining search is worth checking where movement is unexplained. What you mostly find across Gwent: valley terraces on steep hillsides, Victorian houses in Newport and Abergavenny, and post-war estates.
Is it time for wall tie replacement? Common signs
- A house built before the 1980s on an exposed or coastal site
- Mortar joints that look wider or opened up on one elevation
- Cracked render with a regular horizontal pattern
What should you budget for wall tie replacement in Cwmbran?
For Cwmbran we use Wales rates. Treat the table as a budget guide, inc VAT; the price you pay is the one on your written quote.
| 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 |
Repair options we may recommend
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 to expect when we carry out wall tie replacement
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.
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.
Your wall tie replacement questions
How much will wall tie replacement cost in Cwmbran?
Guide prices for wall tie replacement in Cwmbran 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 cover Cwmbran?
We do. Cwmbran and the surrounding area are covered, including nearby Pontypool and Risca. A free initial assessment from your photos is the first step.
Is the ground in Gwent prone to subsidence?
The valleys of Blaenau Gwent, Torfaen and Islwyn lie on the South Wales coalfield with extensive historic workings and spoil tips, while Newport and Monmouthshire have Mercia Mudstone, alluvium and Old Red Sandstone. Only an investigation can say why a particular building has moved.
Is wall tie failure covered by insurance?
Usually not, because insurers treat it as gradual deterioration. Damage caused by a sudden event, such as part of a wall collapsing in a storm, may be treated differently under some policies. Check your policy wording, and tell your insurer if you are unsure.
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.
Other structural repairs in Cwmbran
- Brick arch repairs
- Floor joist repairs
- Mining subsidence repairs
- Roof structure repairs
- Bay window subsidence repairs
Wall tie replacement near Cwmbran
If your Cwmbran home has a bulging outer wall, send photos from a few angles and we will help you decide what needs checking first.