Greenwich · Greater London
Wall tie replacement in Greenwich
On exposed sites around Greenwich, 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£2,250per house inc VAT
- Postcodes
- SE3, SE7, SE9, SE10, SE18
- Population
- about 290,000
- Area
- Greater London
- Pricing region
- London
How do local ground conditions affect wall tie replacement in Greenwich?
We cover the whole of Greenwich, including postcode districts SE3, SE7, SE9, SE10, SE18; about 290,000 people live in the borough. We also take enquiries from nearby Lewisham (4 miles), Newham (4 miles) and Bexley (4 miles).
Much of Greater London 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 Greater London: Victorian and Edwardian terraces with shallow footings, inter-war semis in the outer boroughs, and converted flats and mansion blocks.
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
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
What to expect when we carry out wall tie replacement
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.
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.
Is it time for wall tie replacement? Common signs
- Outer brickwork bowing or bulging, often worst near the top
- Horizontal cracks along mortar joints, repeating every few brick courses
- A house built before the 1980s on an exposed or coastal site
What should you budget for wall tie replacement in Greenwich?
Prices in Greenwich 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 |
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
What is the price of wall tie replacement in Greenwich?
Guide prices for wall tie replacement in Greenwich 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.
Do you carry out wall tie replacement in Greenwich?
Yes, Greenwich is covered, along with postcode districts SE3, SE7, SE9, SE10. We also cover nearby Lewisham and Newham.
Does the ground around Greenwich cause cracking?
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.
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.
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.
More repairs we carry out in Greenwich
- Retaining wall repairs
- Underpinning
- Resin injection ground stabilisation
- Floor joist repairs
- Brick arch repairs
Wall tie replacement near Greenwich
If your Greenwich home has a bulging outer wall, send photos from a few angles and we will help you decide what needs checking first.