Argyll and Bute · Scotland
Extension pulling away repairs in Argyll and Bute
We carry out extension pulling away repairs across Argyll and Bute, from the larger towns to smaller places nearby. Clay shrinkage is less of a concern in Argyll and Bute, so other causes such as drains, poor footings or older walls are checked first. Every job starts with the cause, then the repair is specified to match it.
Guide price from£570per junction inc VAT

- Area
- Argyll and Bute
- Pricing region
- Scotland
- Ground
- Mostly firmer ground
- Towns listed
- 3
What is the ground like in Argyll and Bute?
Argyll is hard rock with thin glacial soils and raised beaches along the coast; mainland towns such as Helensburgh and Oban sit on steep coastal slopes.
Ground movement here is more often linked to soils, drains and trees than to mining. What you mostly find across Argyll and Bute: Victorian villas, stone terraces and cottages, and post-war estates.
Repair options we may recommend
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
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
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.
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.
Is it time for extension pulling away repairs? Common signs
- Daylight or draughts showing through the internal corner joint
- Mastic or render at the joint repeatedly splitting open
- A vertical crack or gap where the extension meets the house
- Patio doors or windows in the extension starting to bind
What should you budget for extension pulling away repairs in Argyll and Bute?
Guide prices below are for homes in Argyll and Bute, on Scotland 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 |
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.
Survey visits in parts of Argyll and Bute are by arrangement because of travel and access. We can still give a free initial view from photos, and we tell you any travel cost before a visit is booked.
Towns in Argyll and Bute we cover for extension pulling away repairs
Your extension pulling away repairs questions
Is the ground in Argyll and Bute prone to subsidence?
Argyll is hard rock with thin glacial soils and raised beaches along the coast; mainland towns such as Helensburgh and Oban sit on steep coastal slopes. Ground movement here is more often linked to soils, drains and trees than to mining. Only an investigation on site can say why a particular building has moved.
How much will extension pulling away repairs cost in Argyll and Bute?
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.
Is it normal for an extension to crack at the join?
A fine crack at the junction is fairly common, especially in the first few years as a new extension settles. It becomes a concern when the gap is widening, tapering, letting in water or matched by sticking doors and sloping floors. Those signs point to continuing movement.
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.
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.