South Ockendon · Essex
Extension pulling away repairs in South Ockendon
Rear and side extensions are common across South Ockendon, and so is the crack where new meets old. Usually it reflects the two parts sitting on different foundations, and the first question is whether the gap is still opening.
Guide price from£630per junction inc VAT

- Postcodes
- RM15, RM19, RM20
- Population
- about 22,000
- Area
- Essex
- Pricing region
- East of England
How do local ground conditions affect extension pulling away repairs in South Ockendon?
South Ockendon is in Essex and takes in postcode districts RM15, RM19, RM20. About 22,000 people live there. If you are just outside South Ockendon, we also cover Grays (3 miles), Havering (4 miles) and Stanford-le-Hope (7 miles).
Shrinkable clay is widespread in Essex. Ground movement here is more often linked to soils, drains and trees than to mining. Housing stock in Essex: Victorian terraces, 1930s semis and bungalows, and large post-war new-town estates in Basildon and Harlow.
What to expect when we carry out extension pulling away repairs
Show us the junction
Send photos of the crack outside, the internal corner and any flashing above, with a measure for scale. We give a free initial assessment and an initial view on whether the gap is likely old or still opening.
Choose the fix
The engineer decides between ties, a movement joint or underpinning. We confirm a fixed price in writing once the repair is specified, covering the junction, flashings, internal finishes and any foundation work.
Finish and hand over
Internal corners are replastered, skirtings and coving refixed, and doors or windows in the extension eased where the movement affected them. Records of the repair and any approvals are passed to you.
Is it time for extension pulling away repairs? Common signs
- Daylight or draughts showing through the internal corner joint
- Floor level dropping where the extension and house floors meet
- Extension roof flashing lifting off the original wall
What should you budget for extension pulling away repairs in South Ockendon?
Guide prices below are for homes in South Ockendon, on East of England rates and including VAT. A survey or good photos let us turn them into a fixed written price.
| Item | Guide price | Per |
|---|---|---|
| Junction crack repair with stainless tiesest. | £630 – £2,100 | per junction |
| Movement joint and making goodest. | £420 – £1,250 | per junction |
| Underpinning the extension where needed | £1,050 – £2,600 | per metre of wall |
Repair options we may recommend
Junction crack repair with stainless ties
The open joint is cut out, stainless ties or helical bars are fixed across it into both the old and new masonry, and the joint is repointed or rendered to match. Inside, the corner is replastered. This suits extensions that moved once and have since stopped.
Best for: Settled extensions with a stable gap at the junction
Underpinning the extension
If the extension is still dropping because its footings are too shallow or on poor ground, they are taken deeper by mass concrete, beam-and-base or mini-piles. The engineer designs the scheme, and the junction is repaired once the new foundation is in.
Best for: Active movement from shallow footings, roots or soft ground
Rules for extension pulling away repairs in England
In England, underpinning and other work that alters or strengthens a wall or foundation is building work under the Building Regulations (Part A, structure), so building control approves and inspects it. Like-for-like repairs often are not, and we tell you which applies before a price is agreed. Work to a party wall, or excavation close to a neighbour’s foundations, can also need a notice under the Party Wall etc. Act 1996.
Your extension pulling away repairs questions
How much will extension pulling away repairs cost in South Ockendon?
Guide prices for extension pulling away repairs in South Ockendon start from about £630 per junction, including VAT, on East of England rates. Your fixed written price follows photos or a survey and depends on the extent of the work and access.
Do you cover South Ockendon?
Yes. We take enquiries from across South Ockendon, including RM15, RM19, RM20, and from nearby places such as Grays and Havering. Send photos for a free initial view and we will tell you what happens next.
Is the ground in Essex prone to subsidence?
London Clay covers much of south and central Essex and boulder clay much of the north, making it one of the counties most affected by clay shrinkage in dry summers. Street and garden trees close to houses add to the risk. Only an investigation can say why a particular building has moved.
What is a movement joint?
A movement joint is a deliberate, flexible break in a wall that lets two parts of a building move slightly without cracking. It is filled with a compressible material and sealed. At an extension junction it can replace a rigid joint that keeps cracking.
Can a drain under my extension cause it to move?
Yes, a cracked or displaced drain beneath or beside an extension can soften clay or wash away fine soil. A CCTV drain survey usually finds it. Repairing the drain is often the first and most important step before any repair to the walls.
Other structural repairs in South Ockendon
- Retaining wall repairs
- Roof structure repairs
- Wall tie replacement
- Gable end wall repairs
- Subsidence insurance claim repairs
Extension pulling away repairs near South Ockendon
If the junction at your South Ockendon property keeps reopening, send dated photos and we will suggest whether monitoring, a drain survey or a repair comes next.