Caerphilly · Mid Glamorgan
Wall tie replacement in Caerphilly
Plenty of cavity-walled houses, in Caerphilly 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
- CF83
- Population
- about 31,000
- Area
- Mid Glamorgan
- Pricing region
- Wales
What is the ground like in Mid Glamorgan?
Caerphilly, Mid Glamorgan: about 31,000 residents across postcode districts CF83. We also take enquiries from nearby Risca (6 miles), Pontypridd (6 miles) and Nelson (6 miles).
Parts of Mid Glamorgan have clay that can shrink near trees in dry spells. 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.
Methods for 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
Isolating the old ties
Where the old ties are swelling and cracking the brickwork, fitting new ties alone may not stop further damage. Each old tie can be isolated, usually by cutting it through within the cavity or sleeving its outer end, so it can no longer lift the outer leaf as it continues to corrode.
Best for: Thick mild steel ties still causing horizontal cracking
From first photo to finished repair
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.
Symptoms that point to wall tie replacement
- A house built before the 1980s on an exposed or coastal site
- Horizontal cracks along mortar joints, repeating every few brick courses
- Mortar joints that look wider or opened up on one elevation
Guide prices for wall tie replacement in Caerphilly
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 |
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.
Frequently asked questions
What is the price of wall tie replacement in Caerphilly?
Guide prices for wall tie replacement in Caerphilly 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 Caerphilly?
Yes, Caerphilly is covered, along with postcode districts CF83. We also cover nearby Risca and Pontypridd.
Does the ground around Caerphilly 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 the old wall ties have to be removed?
Not always, because thin wire ties that cannot swell are usually left in place once new ties are fitted. Thicker ties that are still expanding and cracking the wall are isolated or removed so they stop causing damage. The survey decides which applies.
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.
More repairs we carry out in Caerphilly
Wall tie replacement near Caerphilly
If your Caerphilly home has a bulging outer wall, send photos from a few angles and we will help you decide what needs checking first.