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Wiltshire · England

Wall tie replacement in Wiltshire

If you live in Wiltshire and are looking at wall tie replacement, the first question is why the wall moved. Wiltshire has a mix of ground, with clay in some places and firmer rock in others; ground movement here is more often linked to soils, drains and trees than to mining.

Guide price from£1,850per house inc VAT

Drilling a mortar joint for a remedial wall tie on a 1960s cavity wall
Area
Wiltshire
Pricing region
South West
Ground
Clay in parts
Towns listed
9

Is Wiltshire prone to ground movement?

Southern Wiltshire is chalk, while the north around Swindon, Chippenham and Trowbridge sits on Oxford and Kimmeridge Clays that are prone to seasonal movement near trees. Bath stone was mined underground around Corsham.

Ground movement here is more often linked to soils, drains and trees than to mining. Housing stock in Wiltshire: Stone cottages, railway terraces in Swindon, and large post-war and new-build estates.

Wall tie replacement prices in Wiltshire

Prices in Wiltshire are worked out on South West rates. They include VAT and are a starting point: access, the extent of the damage and whether an engineer or building control is involved all move the figure.

Guide prices inc VAT on South West rates. Items marked est. are our estimates.
ItemGuide pricePer
Mid-terrace houseest.£1,850 – £3,600per house
Semi-detached house£2,600 – £5,150per house
Detached houseest.£3,600 – £7,200per house
Scaffolding where neededest.£620 – £1,850per 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

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

What happens during wall tie replacement, step by step?

  1. 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.

  2. 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.

  3. 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

  • Cracked render with a regular horizontal pattern
  • Horizontal cracks along mortar joints, repeating every few brick courses
  • A house built before the 1980s on an exposed or coastal site
  • Outer brickwork bowing or bulging, often worst near the top
Wall tie replacement: corroded ties isolated and new remedial ties fixed across the cavityCAVITYOLD TIECORRODEDNEW REMEDIALTIEINDICATIVE · NOT TO SCALE
Wall tie replacement: corroded ties isolated and new remedial ties fixed across the cavity. Indicative drawing, not to scale.

Do you need approval for wall tie replacement in England?

Like-for-like repairs such as crack stitching and repointing do not usually need building control approval in England, but anything that changes or strengthens the structure, such as underpinning or rebuilding a wall, does. If the work touches a party wall, the Party Wall etc. Act 1996 may apply.

Find wall tie replacement in your Wiltshire town

Questions about wall tie replacement in Wiltshire

Why do houses in Wiltshire crack?

Southern Wiltshire is chalk, while the north around Swindon, Chippenham and Trowbridge sits on Oxford and Kimmeridge Clays that are prone to seasonal movement near trees. Bath stone was mined underground around Corsham. Ground movement here is more often linked to soils, drains and trees than to mining. Only an investigation on site can say why a particular building has moved.

How much will wall tie replacement cost in Wiltshire?

On South West rates, wall tie replacement starts from about £1,850 per house, including VAT. The written price depends on the extent of the damage, access and whether an engineer or building control is needed.

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.

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.

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.

Related work in Wiltshire

Next step

Send us photos of the crack or movement

A free initial assessment from your photos, then a no-obligation written quote. If an engineer, drain survey or monitoring is needed first, we say so before you spend anything.

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