Horsham · West Sussex
Wall tie replacement in Horsham
The first clue to failing wall ties in Horsham 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£2,000per house inc VAT
- Postcodes
- RH12
- Population
- about 51,000
- Area
- West Sussex
- Pricing region
- South East
How do local ground conditions affect wall tie replacement in Horsham?
Horsham is in West Sussex and takes in postcode districts RH12. About 51,000 people live there. We also take enquiries from nearby Crawley (7 miles), Horley (11 miles) and Haywards Heath (11 miles).
Much of West Sussex sits on clay that shrinks in dry summers and swells in wet winters. Ground movement here is more often linked to soils, drains and trees than to mining. Typical buildings in West Sussex: Wealden cottages, 1930s semis and bungalows on the coast, and new-town estates in Crawley.
Is it time for wall tie replacement? Common signs
- Outer brickwork bowing or bulging, often worst near the top
- The roof edge or verge lifting slightly above the brickwork
- Cracked render with a regular horizontal pattern
What should you budget for wall tie replacement in Horsham?
Prices in Horsham are worked out on South East 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.
| Item | Guide price | Per |
|---|---|---|
| Mid-terrace houseest. | £2,000 – £3,900 | per house |
| Semi-detached house | £2,800 – £5,600 | per house |
| Detached houseest. | £3,900 – £7,850 | per house |
| Scaffolding where neededest. | £670 – £2,000 | per elevation |
Repair options we may recommend
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
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 to expect when we carry out wall tie replacement
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.
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.
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 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.
Your wall tie replacement questions
How much will wall tie replacement cost in Horsham?
Guide prices for wall tie replacement in Horsham start from about £2,000 per house, including VAT, on South East rates. Your fixed written price follows photos or a survey and depends on the extent of the work and access.
Do you cover Horsham?
Yes, Horsham is covered, along with postcode districts RH12. We also cover nearby Crawley and Horley.
Is the ground in West Sussex prone to subsidence?
North West Sussex around Crawley and Horsham sits on Weald Clay, the South Downs are chalk, and the coastal plain has brickearth and gravels. The Weald Clay is prone to shrink-swell movement near trees. Only an investigation can say why a particular building has moved.
How do I know if my wall ties have failed?
The clearest sign is horizontal cracking in the mortar joints repeating every few courses, often with a bulge or a lifted roofline. Wire ties can fail with no cracking at all, so a tie survey with a metal detector and borescope is the only reliable check.
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 Horsham
- Crack stitching
- Underpinning
- Resin injection ground stabilisation
- Roof structure repairs
- Structural surveys and crack monitoring
Wall tie replacement near Horsham
If your Horsham home has a bulging outer wall, send photos from a few angles and we will help you decide what needs checking first.