Forfar · Angus and Dundee
Extension pulling away repairs in Forfar
Rear and side extensions are common across Forfar, 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£570per junction inc VAT
- Postcodes
- DD8
- Population
- about 14,000
- Area
- Angus and Dundee
- Pricing region
- Scotland
Is Angus and Dundee prone to ground movement?
Forfar (DD8) has around 14,000 residents and sits in Angus and Dundee. Neighbouring towns we cover: Carnoustie (12 miles), Dundee (12 miles) and Arbroath (13 miles).
Most of Angus and Dundee is on firmer ground than the clay belts of the south-east. Ground movement here is more often linked to soils, drains and trees than to mining. Typical buildings in Angus and Dundee: Sandstone tenements in Dundee, fishing-town houses and post-war estates.
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
What to expect when we carry out extension pulling away repairs
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.
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.
Is it time for extension pulling away repairs? Common signs
- Mastic or render at the joint repeatedly splitting open
- Patio doors or windows in the extension starting to bind
- Daylight or draughts showing through the internal corner joint
What should you budget for extension pulling away repairs in Forfar?
These are guide prices for Forfar, using Scotland rates and including VAT. Your written quote follows photos or a survey, and is fixed once the repair is specified.
| 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 |
Rules 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.
Your extension pulling away repairs questions
How much will extension pulling away repairs cost in Forfar?
Guide prices for extension pulling away repairs in Forfar start from about £570 per junction, including VAT, on Scotland rates. Your fixed written price follows photos or a survey and depends on the extent of the work and access.
Do you cover Forfar?
We do. Forfar and the surrounding area are covered, including nearby Carnoustie and Dundee. A free initial assessment from your photos is the first step.
Is the ground in Angus and Dundee prone to subsidence?
Angus and Dundee sit on Old Red Sandstone and igneous rock with glacial and raised-beach deposits. Hillside sites in Dundee mean retaining walls are common. Only an investigation can say why a particular building has moved.
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.
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.
Other structural repairs in Forfar
- Floor joist repairs
- Bay window subsidence repairs
- Bowing wall repairs
- Boundary and garden wall repairs
- Wall tie replacement
Extension pulling away repairs near Forfar
If the junction at your Forfar property keeps reopening, send dated photos and we will suggest whether monitoring, a drain survey or a repair comes next.