Mountain Ash · Mid Glamorgan
Wall tie replacement in Mountain Ash
Plenty of cavity-walled houses, in Mountain Ash 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
- CF45
- Population
- about 11,000
- Area
- Mid Glamorgan
- Pricing region
- Wales
What should you know about the ground under Mountain Ash?
With roughly 11,000 people, Mountain Ash spans postcode districts CF45 in Mid Glamorgan. Nearby, we also cover Rhondda (3 miles), Aberdare (4 miles) and Merthyr Tydfil (4 miles).
Mid Glamorgan has a mix of ground, with clay in some places and firmer rock in others. Historic coal workings are recorded beneath parts of Mid Glamorgan, and a coal mining search is worth checking where movement is unexplained. What you mostly find across Mid Glamorgan: long stone and brick terraces on valley sides, Victorian houses in Bridgend and post-war estates.
Wall tie replacement prices in Mountain Ash
These are guide prices for Mountain Ash, using Wales rates and including VAT. Your written quote follows photos or a survey, and is fixed once the repair is specified.
| 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
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
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
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.
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.
What to look for before calling about wall tie replacement
- The roof edge or verge lifting slightly above the brickwork
- Cracked render with a regular horizontal pattern
- Horizontal cracks along mortar joints, repeating every few brick courses
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 Mountain Ash
What is the price of wall tie replacement in Mountain Ash?
Guide prices for wall tie replacement in Mountain Ash 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 Mountain Ash?
Yes. We take enquiries from across Mountain Ash, including CF45, and from nearby places such as Rhondda and Aberdare. Send photos for a free initial view and we will tell you what happens next.
Does the ground around Mountain Ash 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.
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 Mountain Ash
- Resin injection ground stabilisation
- Structural crack repairs
- Structural surveys and crack monitoring
- Subsidence repairs
- Mining subsidence repairs
Wall tie replacement near Mountain Ash
Suspect failed wall ties in Mountain Ash? We offer a free initial assessment from your photos or a call, and a fixed price after the tie survey.