Wishaw · Lanarkshire
Bay window subsidence repairs in Wishaw
If your Wishaw bay window has started sticking and a gap has opened at the junction, it is worth finding out whether the bay is still moving. A stable crack needs a straightforward tie-in, whereas an active one may need a new foundation.
Guide price from£570per bay inc VAT

- Postcodes
- ML2
- Population
- about 30,000
- Area
- Lanarkshire
- Pricing region
- Scotland
What should you know about the ground under Wishaw?
Wishaw (ML2) has around 30,000 residents and sits in Lanarkshire. Neighbouring towns we cover: Larkhall (3 miles), Motherwell (3 miles) and Carluke (4 miles).
Shrinkable clay is less common in Lanarkshire than in south-east England. Historic coal workings are recorded beneath parts of Lanarkshire, and a coal mining search is worth checking where movement is unexplained. Typical buildings in Lanarkshire: Miners' rows, sandstone tenements, inter-war council houses and new-town estates in East Kilbride and Cumbernauld.
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.
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.
Carry out the work
Ties are fitted across the junction, or the bay is underpinned in sequence with building control inspecting the dig. The bay window and flashings are checked and eased or resealed where the movement has disturbed them.
What to look for before calling about bay window subsidence repairs
- A step or slope in the bay floor towards the window
- Bay roof or lead flashing pulling away from the main wall
- Cracks above the bay window head or below the sill
Bay window subsidence repairs prices in Wishaw
Prices in Wishaw are worked out on Scotland rates. They include VAT and are a starting point: access, the extent of the damage and whether an engineer or building control is involved all move the figure.
| 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
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
Traditional underpinning of the bay
The bay footing is excavated in short sections and new mass concrete is placed down to firmer ground below the zone affected by roots and seasons. Because a bay is a short length of wall, the work is compact, but it needs building control approval.
Best for: Active bay movement on firm ground at moderate depth
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 Wishaw
How much will bay window subsidence repairs cost in Wishaw?
Guide prices for bay window subsidence repairs in Wishaw 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 cover Wishaw?
We do. Wishaw and the surrounding area are covered, including nearby Larkhall and Motherwell. A free initial assessment from your photos is the first step.
Is the ground in Lanarkshire prone to subsidence?
Lanarkshire lies on the Central Coalfield, mined intensively in the past around Hamilton, Motherwell, Airdrie and Coatbridge, so recorded workings are common beneath towns. Only an investigation can say why a particular building has moved.
Does a bay window always need underpinning?
No, many bays are fixed by tying the junction and repointing, once any cause such as a leaking gully is put right. Underpinning is for bays still dropping after the cause has been dealt with, or with footings too shallow for the ground they sit on.
Can I just fill the crack myself?
Filling it hides the evidence without dealing with the cause, and if the bay is still moving the crack will reopen. Photograph it with a scale and date first. If you plan to claim on insurance, tell your insurer before any repair, including filling.
Other structural repairs in Wishaw
- Lintel replacement
- Crack stitching
- Resin injection ground stabilisation
- Gable end wall repairs
- Mining subsidence repairs
Bay window subsidence repairs near Wishaw
Send photos of the bay junction inside and out at your Wishaw home for a free initial assessment and a guide price.