Sevenoaks · Kent
Wall tie replacement in Sevenoaks
On exposed sites around Sevenoaks, the elevation facing the weather often loses its wall ties first. Remedial stainless ties reconnect the two leaves, and the old ties are isolated or removed where they are still pushing the brickwork apart.
Guide price from£2,000per house inc VAT
- Postcodes
- TN13
- Population
- about 30,000
- Area
- Kent
- Pricing region
- South East
What is the ground like in Kent?
Sevenoaks (TN13) has around 30,000 residents and sits in Kent. Neighbouring towns we cover: Tonbridge (6 miles), Swanley (9 miles) and Bromley (10 miles).
Shrinkable clay is widespread in Kent. Parts of Kent lie on a former coalfield, so a coal mining search is worth checking if movement has no obvious cause. Housing stock in Kent: Victorian terraces in the Medway towns, weatherboarded and Wealden houses, 1930s semis and seaside bungalows.
Signs you may need wall tie replacement
- Outer brickwork bowing or bulging, often worst near the top
- Horizontal cracks along mortar joints, repeating every few brick courses
- The roof edge or verge lifting slightly above the brickwork
How much will wall tie replacement cost in Sevenoaks?
The ranges below reflect typical South East 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. | £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 |
Which repair method suits a home in Sevenoaks?
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 happens when we carry out wall tie replacement in Sevenoaks?
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.
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.
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.
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.
Wall tie replacement in Sevenoaks: questions and answers
What is the price of wall tie replacement in Sevenoaks?
Guide prices for wall tie replacement in Sevenoaks 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 carry out wall tie replacement in Sevenoaks?
Yes. We take enquiries from across Sevenoaks, including TN13, and from nearby places such as Tonbridge and Swanley. Send photos for a free initial view and we will tell you what happens next.
Does the ground around Sevenoaks cause cracking?
North Kent sits on London Clay, central Kent on Gault and Weald Clays and the Downs on chalk, so shrinkable clay is widespread. East Kent around Deal and Dover had a small deep coalfield, worked until the late 1980s. 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.
Can wall ties be replaced on a rendered house?
Yes, new ties can be fitted through render, with each drill hole made good afterwards. The repairs can show on painted render, so redecoration of the affected elevation is often worth including. Render can also hide the cracking pattern, so a survey matters more.
More repairs we carry out in Sevenoaks
- Mining subsidence repairs
- Bowing wall repairs
- Resin injection ground stabilisation
- Underpinning
- Structural surveys and crack monitoring
Wall tie replacement near Sevenoaks
Suspect failed wall ties in Sevenoaks? We offer a free initial assessment from your photos or a call, and a fixed price after the tie survey.