Kensington and Chelsea · Greater London
Wall tie replacement in Kensington and Chelsea
If a mortgage valuation on a Kensington and Chelsea property has flagged possible wall tie failure, the next step is a tie survey and a written quote. We explain what the borescope found on each elevation and price only the walls that need work.
Guide price from£2,250per house inc VAT
- Postcodes
- SW3, SW5, SW7, SW10, W2
- Population
- about 140,000
- Area
- Greater London
- Pricing region
- London
What is the ground like in Greater London?
Kensington and Chelsea is one of the 32 London boroughs, with around 140,000 residents in districts such as SW3, SW5, SW7, SW10, W2. If you are just outside Kensington and Chelsea, we also cover Hammersmith and Fulham (1 miles), Westminster (2 miles) and Wandsworth (3 miles).
Shrinkable clay is widespread in Greater London. Ground movement here is more often linked to soils, drains and trees than to mining. What you mostly find across Greater London: Victorian and Edwardian terraces with shallow footings, inter-war semis in the outer boroughs, and converted flats and mansion blocks.
What happens when we carry out wall tie replacement in Kensington and Chelsea?
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.
Signs you may need wall tie replacement
- Mortar joints that look wider or opened up on one elevation
- Horizontal cracks along mortar joints, repeating every few brick courses
- Cracked render with a regular horizontal pattern
How much will wall tie replacement cost in Kensington and Chelsea?
Prices in Kensington and Chelsea are worked out on London 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. | £2,250 – £4,400 | per house |
| Semi-detached house | £3,100 – £6,250 | per house |
| Detached houseest. | £4,400 – £8,750 | per house |
| Scaffolding where neededest. | £750 – £2,250 | per elevation |
Which repair method suits a home in Kensington and Chelsea?
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
Removing old ties and rebedding
On badly cracked elevations the old ties are cut out from the outer face, the joints raked and rebedded, and the brickwork repointed. It is more work than isolation but removes the source of expansion entirely. An engineer or the survey report usually specifies where this is needed.
Best for: Elevations with severe cracking or lifting
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 Kensington and Chelsea: questions and answers
How much should I budget for wall tie replacement in Kensington and Chelsea?
Guide prices for wall tie replacement in Kensington and Chelsea start from about £2,250 per house, including VAT, on London rates. Your fixed written price follows photos or a survey and depends on the extent of the work and access.
Can you survey a property in Kensington and Chelsea?
Yes. We take enquiries from across Kensington and Chelsea, including SW3, SW5, SW7, SW10, and from nearby places such as Hammersmith and Fulham and Westminster. Send photos for a free initial view and we will tell you what happens next.
Why do houses in Greater London crack?
Most of Greater London sits on London Clay, among the most shrinkage-prone ground in the UK, with river gravels along the Thames. Subsidence claims here are among the most frequent in the country, especially after dry summers and near street and garden trees. Only an investigation can say why a particular building has moved.
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.
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.
Related work in Kensington and Chelsea
- Subsidence repairs
- Retaining wall repairs
- Lintel replacement
- Resin injection ground stabilisation
- Bowing wall repairs
Wall tie replacement near Kensington and Chelsea
Our no-obligation written quote for wall ties in Kensington and Chelsea shows each elevation and the scaffold on its own line, so nothing is bundled together.