Leeds · West Yorkshire
Extension pulling away repairs in Leeds
If the corner joint in your Leeds extension keeps splitting after you fill it, something is still moving. Measuring the gap over a few months, with dated photos, gives an engineer the evidence to recommend the right repair.
Guide price from£570per junction inc VAT
- Postcodes
- LS1, LS2, LS3
- Population
- about 540,000
- Area
- West Yorkshire
- Pricing region
- Yorkshire and the Humber
Why does the ground in West Yorkshire matter for extension pulling away repairs?
We cover Leeds and its postcode districts LS1, LS2, LS3, part of West Yorkshire, with a population of roughly 540,000. Nearby, we also cover Morley (4 miles), Pudsey (5 miles) and Horsforth (5 miles).
Parts of West Yorkshire have clay that can shrink near trees in dry spells. Historic coal workings are recorded beneath parts of West Yorkshire, and a coal mining search is worth checking where movement is unexplained. Typical buildings in West Yorkshire: Stone back-to-backs and terraces, mill housing, Victorian villas and post-war estates.
Guide prices for extension pulling away repairs in Leeds
Guide prices below are for homes in Leeds, on Yorkshire and the Humber 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. | £570 – £1,900 | per junction |
| Movement joint and making goodest. | £380 – £1,150 | per junction |
| Underpinning the extension where needed | £950 – £2,400 | per metre of wall |
Methods for extension pulling away repairs
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
Movement joint and making good
Where some seasonal movement is expected to continue, the junction is formed into a proper flexible movement joint with a compressible filler and sealant, so the two parts can move without cracking. Flashings and internal finishes are detailed to suit.
Best for: Minor ongoing movement that does not threaten the structure
From first photo to finished repair
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.
Find what is moving
An independent chartered structural engineer can inspect, and we can arrange one. A drain survey under the extension, a trial pit at its footing and tell-tale monitoring across the joint are common checks before choosing the repair.
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.
Symptoms that point to extension pulling away repairs
- Mastic or render at the joint repeatedly splitting open
- Daylight or draughts showing through the internal corner joint
- Extension roof flashing lifting off the original wall
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.
Frequently asked questions
How much will extension pulling away repairs cost in Leeds?
Guide prices for extension pulling away repairs in Leeds start from about £570 per junction, including VAT, on Yorkshire and the Humber rates. Your fixed written price follows photos or a survey and depends on the extent of the work and access.
Do you cover Leeds?
We do. Leeds and the surrounding area are covered, including nearby Morley and Pudsey. A free initial assessment from your photos is the first step.
Is the ground in West Yorkshire prone to subsidence?
West Yorkshire lies largely on the Coal Measures, with shallow historic workings around Leeds, Wakefield and Kirklees, and gritstone hills to the west. Steep sites mean retaining walls are common. 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.
Why is my extension pulling away from my house?
Usually because the extension and the house sit on different foundations that react differently to the ground. Shallow extension footings, leaking drains under the extension, nearby roots and weak tie-ins between old and new walls are the common causes.
Other structural repairs in Leeds
Extension pulling away repairs near Leeds
Send photos of the extension junction at your Leeds home, inside and out, and we will give a free initial assessment and a guide price.