England · London
Structural repairs in Greater London
Structural repairs across Greater London: subsidence, cracks, underpinning, wall ties, lintels and claim repairs. Much of Greater London sits on clay that shrinks in dry summers and swells in wet winters.
- Nation
- England
- Pricing region
- London
- Towns listed
- 32
- Mining legacy
- Not a major factor
What is the ground like in Greater London?
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.
Ground movement here is more often linked to soils, drains and trees than to mining.
What usually causes cracking in Greater London?
In Greater London, cracking usually comes back to one of these. We rule each in or out before recommending a repair.
- Shrinkable clay drying out in hot summers, worst within reach of tree roots
- Rotten timber lintels and bressummers over bays and openings
- Shallow footings and corroded wall ties in older brick houses
- Garden and boundary walls leaning as tree roots and frost get to them
- Extensions and bays moving differently from the main house
What kind of buildings are common here?
Victorian and Edwardian terraces with shallow footings, inter-war semis in the outer boroughs, and converted flats and mansion blocks.
Which repairs do we carry out in Greater London?
- Bay window subsidence repairs
- Structural surveys and crack monitoring
- Retaining wall repairs
- Bowing wall repairs
- Structural crack repairs
- Crack stitching
- Concrete repairs
- Underpinning
- Subsidence repairs
- Chimney stack repairs
- Extension pulling away repairs
- Roof structure repairs
- Floor joist repairs
- Gable end wall repairs
- Boundary and garden wall repairs
- Subsidence insurance claim repairs
- Lintel replacement
- Brick arch repairs
- Wall tie replacement
- Resin injection ground stabilisation
Guide prices in Greater London
A selection of guide prices on London rates, including VAT. Each repair page has the full table.
| Item | Guide price | Per |
|---|---|---|
| Resin injection ground stabilisation: resin injection ground stabilisation | £1,000 – £1,900 | per metre of wall treated |
| Lintel replacement: standard window or door opening | £940 – £3,100 | per opening |
| Bowing wall repairs: lateral restraint for a typical gable | £1,250 – £3,750 | per wall |
| Structural surveys and crack monitoring: structural engineer's inspection and report | £625 – £2,500 | per property |
Towns we cover in Greater London
We list 32 towns in Greater London, covering 217 postcode districts in the BR, CR, DA, E, EC, EN, HA, IG, KT, N, RM, SE, SM, SW and TW postcode areas. The largest are Croydon (about 390,000 people), Barnet (about 390,000 people) and Ealing (about 370,000 people). Each town page has local postcodes, nearby places and the repairs we carry out there.
- Croydon
- Barnet
- Ealing
- Newham
- Brent
- Bromley
- Enfield
- Wandsworth
- Lambeth
- Tower Hamlets
- Redbridge
- Southwark
- Hillingdon
- Lewisham
- Greenwich
- Hounslow
- Waltham Forest
- Haringey
- Havering
- Harrow
- Hackney
- Bexley
- Barking and Dagenham
- Islington
- Merton
- Camden
- Sutton
- Westminster
- Richmond upon Thames
- Hammersmith and Fulham
- Kingston upon Thames
- Kensington and Chelsea
Do repairs in Greater London need approval?
In England, building control approves and inspects structural work such as underpinning; small like-for-like repairs usually do not need it. Party wall notices apply where work affects a shared wall.
Questions about structural repairs in Greater London
Do you cover the whole of Greater London?
Yes. We take enquiries from across Greater London, including Croydon, Barnet, Ealing and Newham. A free initial assessment from your photos is the first step.
Is Greater London affected by subsidence?
Shrinkable clay is widespread in Greater London. Ground movement here is more often linked to soils, drains and trees than to mining. Whether a particular building has moved, and why, needs an investigation on site.
How much do structural repairs cost in Greater London?
It depends on the repair. On London rates, resin injection from about £1,000 per metre of wall treated and a standard window or door lintel from about £940 per opening, including VAT. Your written price follows photos or a survey.
What should I send for a free assessment in Greater London?
Photos of each crack inside and out with a coin or tape for scale, a wider shot showing where it is on the building, your postcode in Greater London, and when you first noticed it. If an insurer is involved, include the claim reference.