Lincoln · Lincolnshire
Extension pulling away repairs in Lincoln
If the corner joint in your Lincoln 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£590per junction inc VAT
- Postcodes
- LN6
- Population
- about 100,000
- Area
- Lincolnshire
- Pricing region
- East Midlands
Why does the ground in Lincolnshire matter for extension pulling away repairs?
With roughly 100,000 people, Lincoln spans postcode districts LN6 in Lincolnshire. We also take enquiries from nearby Gainsborough (14 miles), Newark-on-Trent (16 miles) and Sleaford (17 miles).
Clay soils are found in parts of Lincolnshire. Ground movement here is more often linked to soils, drains and trees than to mining. Across Lincolnshire, most homes are Victorian terraces in Lincoln and Grimsby, fenland brick houses, seaside bungalows and post-war estates.
Guide prices for extension pulling away repairs in Lincoln
Guide prices below are for homes in Lincoln, on East Midlands 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. | £590 – £1,950 | per junction |
| Movement joint and making goodest. | £390 – £1,200 | per junction |
| Underpinning the extension where needed | £980 – £2,450 | per metre of wall |
Methods for extension pulling away repairs
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
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.
Repair the junction
Drains are repaired first if they are leaking. The joint is then tied, formed as a movement joint or rebuilt after underpinning, with roof flashings reset so the junction stays watertight. Building control is handled where needed.
Symptoms that point to extension pulling away repairs
- Patio doors or windows in the extension starting to bind
- A vertical crack or gap where the extension meets the house
- Daylight or draughts showing through the internal corner joint
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 Lincoln?
Guide prices for extension pulling away repairs in Lincoln start from about £590 per junction, including VAT, on East Midlands rates. Your fixed written price follows photos or a survey and depends on the extent of the work and access.
Do you cover Lincoln?
Yes. We take enquiries from across Lincoln, including LN6, and from nearby places such as Gainsborough and Newark-on-Trent. Send photos for a free initial view and we will tell you what happens next.
Is the ground in Lincolnshire prone to subsidence?
Lincolnshire has Lias, Oxford and Kimmeridge clays on the vales, chalk on the Wolds and soft silts and peat in the fens around Boston and Spalding. Fen ground and clay can both settle or shrink in dry years. Only an investigation can say why a particular building has moved.
Who is responsible if a recent extension is moving?
If the extension is recent, the original builder, the designer or building control records may be relevant, and you may have rights against the builder. Gather the plans, completion certificate and contract. Insurance often excludes defects in new construction, so check your policy.
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.
Other structural repairs in Lincoln
Extension pulling away repairs near Lincoln
Send photos of the extension junction at your Lincoln home, inside and out, and we will give a free initial assessment and a guide price.