Stirling, Falkirk and Clackmannanshire · Scotland
Extension pulling away repairs in Stirling, Falkirk and Clackmannanshire
Extension pulling away repairs in Stirling, Falkirk and Clackmannanshire starts with the ground. Shrinkable clay is less common in Stirling, Falkirk and Clackmannanshire than in south-east England, and the buildings here are mostly stone tenements and villas, so the repair has to suit both.
Guide price from£570per junction inc VAT
- Area
- Stirling, Falkirk and Clackmannanshire
- Pricing region
- Scotland
- Ground
- Mostly firmer ground
- Towns listed
- 5
Why does the ground in Stirling, Falkirk and Clackmannanshire matter for extension pulling away repairs?
The Forth valley has soft carse clays near the river, which can settle, and coalfields beneath Falkirk, Clackmannanshire and the south of Stirling with recorded historic workings.
Historic coal workings are recorded beneath parts of Stirling, Falkirk and Clackmannanshire, and a coal mining search is worth checking where movement is unexplained. Typical buildings in Stirling, Falkirk and Clackmannanshire: Stone tenements and villas, miners' rows and post-war estates.
How much will extension pulling away repairs cost in Stirling, Falkirk and Clackmannanshire?
The ranges below reflect typical Scotland costs for extension pulling away repairs, including VAT. Scaffold, access and making good can push a job to the top of the range.
| 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 |
Which repair method suits a home in Stirling, Falkirk and Clackmannanshire?
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
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
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
What happens when we carry out extension pulling away repairs in Stirling, Falkirk and Clackmannanshire?
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.
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.
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.
Signs you may need extension pulling away repairs
- Patio doors or windows in the extension starting to bind
- Mastic or render at the joint repeatedly splitting open
- Floor level dropping where the extension and house floors meet
- A vertical crack or gap where the extension meets the house
Do you need approval for extension pulling away repairs in Scotland?
In Scotland, underpinning and other structural alterations generally need a building warrant from the council’s building standards service before work starts, and a completion certificate at the end; small like-for-like repairs often do not. There is no Party Wall Act in Scotland; shared walls are covered by title deeds and, for flats, the Tenements (Scotland) Act 2004.
Extension pulling away repairs near you in Stirling, Falkirk and Clackmannanshire
Extension pulling away repairs in Stirling, Falkirk and Clackmannanshire: questions and answers
Does the ground around Stirling cause cracking?
The Forth valley has soft carse clays near the river, which can settle, and coalfields beneath Falkirk, Clackmannanshire and the south of Stirling with recorded historic workings. Historic coal workings are recorded beneath parts of Stirling, Falkirk and Clackmannanshire, and a coal mining search is worth checking where movement is unexplained. Only an investigation on site can say why a particular building has moved.
How much will extension pulling away repairs cost in Stirling, Falkirk and Clackmannanshire?
On Scotland rates, extension pulling away repairs starts from about £570 per junction, including VAT. The written price depends on the extent of the damage, access and whether an engineer or building control is needed.
Will my extension need underpinning?
Often not. Many separating extensions are fixed by repairing a drain, tying the junction or forming a movement joint. Underpinning is for extensions that keep dropping because their footings are too shallow or the ground beneath is poor, as shown by monitoring.
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 I just fill the gap with mastic?
Mastic can keep water out short term, but it does not stop movement or reconnect the walls. If the gap reopens after filling, something is still moving. Photograph and measure it over a few months first, so an engineer can see the trend.