Dunoon · Argyll and Bute
Bay window subsidence repairs in Dunoon
A cracked bay in Dunoon can be anything from an old, stable joint to a foundation that is still dropping. Photos of the outside junction and the inside corners usually show which is more likely and whether an engineer should look.
Guide price from£570per bay inc VAT
- Postcodes
- PA23
- Population
- about 8,000
- Area
- Argyll and Bute
- Pricing region
- Scotland
Is Argyll and Bute prone to ground movement?
Postcode districts PA23 cover Dunoon, a Argyll and Bute town of about 8,000 people. Nearby, we also cover Helensburgh (9 miles), Largs (11 miles) and Alexandria (13 miles).
Most of Argyll and Bute 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. Housing stock in Argyll and Bute: Victorian villas, stone terraces and cottages, and post-war estates.
What to look for before calling about bay window subsidence repairs
- Bay roof or lead flashing pulling away from the main wall
- Bay window sash or casement sticking or binding
- A step or slope in the bay floor towards the window
Bay window subsidence repairs prices in Dunoon
Guide prices below are for homes in Dunoon, on Scotland rates and including VAT. A survey or good photos let us turn them into a fixed written price.
| Item | Guide price | Per |
|---|---|---|
| Bay junction crack repair and tie-inest. | £570 – £1,700 | per bay |
| Traditional underpinning of a bay | £2,850 – £6,650 | per bay |
| Mini-piled bay underpinning | £4,750 – £11,400 | per bay |
How we usually approach bay window subsidence repairs
Mini-piled bay underpinning
Small piles are installed to depth around or beneath the bay and linked by a reinforced beam or needles that pick up its weight. It suits deeper soft ground and heavy root activity, and the compact rigs fit into a front garden.
Best for: Deep clay, nearby trees, or poor ground below the bay
Junction crack repair and tie-in
Where movement has stopped, the open joint between bay and house is raked out, stainless ties or helical bars are fixed across it, and the joint is repointed to match. Internal plaster along the crack is cut back and renewed before redecoration.
Best for: Old, stable cracks where the bay is no longer moving
What happens during bay window subsidence repairs, step by step?
Photos and first view
Send photos of the outside junction, the inside corners and the window, with a scale. We give a free initial assessment and tell you whether the crack looks old and stable or whether an engineer should inspect first.
Engineer and checks
Where the cause is unclear, an independent chartered structural engineer inspects, sometimes with a trial pit at the bay and a drain survey. We can arrange the engineer. Monitoring may be suggested if the movement could be seasonal.
Agree the repair
The engineer decides between tie-in repairs and underpinning. We confirm a fixed price in writing once the repair is specified, including scaffolding if needed, the bay window, roof flashing and internal making good.
Rules for bay window subsidence 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.
Questions about bay window subsidence repairs in Dunoon
What is the price of bay window subsidence repairs in Dunoon?
Guide prices for bay window subsidence repairs in Dunoon start from about £570 per bay, 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 carry out bay window subsidence repairs in Dunoon?
Survey visits to Dunoon 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.
Does the ground around Dunoon cause cracking?
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. Only an investigation can say why a particular building has moved.
Why do bay windows crack away from the house?
Bays often stand on shallower footings than the main walls, so they react to drying clay, roots and drain leaks that the deeper house foundations escape. Many bays were also never properly tied in, so any movement opens a clean vertical crack at the junction.
Is a crack between my bay and the house serious?
It is often not serious, especially if it is old, fine and unchanged for years. A crack that is widening, tapering or matched by sticking windows and a sloping bay floor needs looking at. An engineer’s inspection, sometimes with monitoring, will confirm whether the bay is still moving.
More repairs we carry out in Dunoon
- Roof structure repairs
- Gable end wall repairs
- Resin injection ground stabilisation
- Extension pulling away repairs
- Chimney stack repairs
Bay window subsidence repairs near Dunoon
If your insurer is handling a bay claim at your Dunoon property, share the schedule and we will price the repair to it in writing.