Angus and Dundee · Scotland
Bay window subsidence repairs in Angus and Dundee
Homes in Angus and Dundee are mostly sandstone tenements in Dundee. That matters for bay window subsidence repairs: footings, wall construction and mortar all vary with the age of the building. Clay shrinkage is less of a concern in Angus and Dundee, so other causes such as drains, poor footings or older walls are checked first.
Guide price from£570per bay inc VAT

- Area
- Angus and Dundee
- Pricing region
- Scotland
- Ground
- Mostly firmer ground
- Towns listed
- 5
How do local ground conditions affect bay window subsidence repairs in Angus and Dundee?
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.
Ground movement here is more often linked to soils, drains and trees than to mining. What you mostly find across Angus and Dundee: sandstone tenements in Dundee, fishing-town houses and post-war estates.
Signs you may need bay window subsidence repairs
- A step or slope in the bay floor towards the window
- Cracks above the bay window head or below the sill
- Gaps opening around the internal bay window board
- Bay window sash or casement sticking or binding
How much will bay window subsidence repairs cost in Angus and Dundee?
The ranges below reflect typical Scotland costs for bay window subsidence repairs, including VAT. Scaffold, access and making good can push a job to the top of the range.
| 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 |
Which repair method suits a home in Angus and Dundee?
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
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
What happens when we carry out bay window subsidence repairs in Angus and Dundee?
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.
Make good inside
Plaster around the bay and along the junction is renewed, the window board is refixed and the room is ready for decoration. Building control paperwork, where it applies, is passed to you for your records.
Do you need approval 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.
Find bay window subsidence repairs in your Angus and Dundee town
Bay window subsidence repairs in Angus and Dundee: questions and answers
Why do houses in Angus and Dundee crack?
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. 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 bay window subsidence repairs cost in Angus and Dundee?
On Scotland rates, bay window subsidence repairs starts from about £570 per bay, including VAT. The written price depends on the extent of the damage, access and whether an engineer or building control is needed.
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.
Will the bay window need replacing?
Usually not. Most windows can be eased, packed or resealed once the bay is stable. If the frame has twisted badly or the glass has cracked, replacement may be worth considering. Under a claim, upgrades beyond like-for-like are normally priced separately.
Can a bay be underpinned without underpinning the house?
Yes, underpinning only the bay is common because it is usually the part on shallower footings. The engineer designs the junction so the strengthened bay and the existing house can move slightly without cracking, sometimes with a movement joint or ties.