Alexandria · Dunbartonshire
Subsidence repairs in Alexandria
Subsidence in Alexandria, as anywhere in Dunbartonshire, usually comes back to the ground beneath the footings: clay drying out, a drain leaking or roots taking water. Knowing which applies decides whether the repair is a few days of crack work or a longer foundation scheme.
Guide price from£2,400per property inc VAT

- Postcodes
- G83
- Population
- about 25,000
- Area
- Dunbartonshire
- Pricing region
- Scotland
What is the ground like in Dunbartonshire?
With roughly 25,000 people, Alexandria spans postcode districts G83 in Dunbartonshire. Neighbouring towns we cover: Port Glasgow (5 miles), Helensburgh (6 miles) and Greenock (7 miles).
Clay shrinkage is less of a concern in Dunbartonshire, so other causes such as drains, poor footings or older walls are checked first. Parts of Dunbartonshire lie on a former coalfield, so a coal mining search is worth checking if movement has no obvious cause. Across Dunbartonshire, most homes are tenements, Victorian villas in Bearsden and Milngavie, and post-war estates.
Signs you may need subsidence repairs
- Diagonal cracks wider at the top, running from window or door corners
- Wallpaper rippling or tearing where the wall meets the ceiling
- A gap opening between the skirting board and the floor
How much will subsidence repairs cost in Alexandria?
Guide prices below are for homes in Alexandria, on Scotland rates and including VAT. A survey or good photos let us turn them into a fixed written price.
| Item | Guide price | Per |
|---|---|---|
| Structural engineer's investigation and report | £475 – £1,900 | per property |
| CCTV drain survey (common first check) | £140 – £330 | per survey |
| Typical repair once the cause is dealt with: crack stitching and making goodest. | £2,400 – £11,400 | per property |
| Foundation strengthening where it is needed (see underpinning) | £950 – £3,300 | per metre of wall |
Which repair method suits a home in Alexandria?
Remove the cause, then repair
Most subsidence is dealt with this way. The drain is repaired or the vegetation managed, the house is watched to confirm it has stabilised, and then the cracks are stitched, repointed and made good inside. It is the least disruptive route and usually the cheapest.
Best for: Clay movement or drain leaks where the cause can be removed
Crack stitching and making good
Once movement has stopped, cracked brickwork is cut along the bed joints, stainless helical bars are bonded in to tie the wall together, and the joints are repointed to match. Inside, plaster is renewed along the crack line before redecoration.
Best for: Category 1 to 3 cracking in walls that are otherwise sound
What happens when we carry out subsidence repairs in Alexandria?
Find the cause
An independent chartered structural engineer inspects the house and, where needed, arranges a drain survey, trial pits or soil tests. We can arrange the engineer. The aim is to know what is moving, and why, before money goes on repairs.
Deal with the cause
Drains are repaired, vegetation is managed on the engineer’s advice, or a foundation scheme is designed if nothing else will work. Where monitoring is recommended, readings run for several months to show the movement has stopped.
Written quote
We price the agreed repair and confirm a fixed price in writing once it is specified. If there is an insurance claim, we can price to the loss adjuster’s or engineer’s schedule instead of our own scope.
Rules for 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.
Subsidence repairs in Alexandria: questions and answers
How much should I budget for subsidence repairs in Alexandria?
Guide prices for subsidence repairs in Alexandria start from about £2,400 per property, including VAT, on Scotland rates. Your fixed written price follows photos or a survey and depends on the extent of the work and access.
Can you survey a property in Alexandria?
Yes, Alexandria is covered, along with postcode districts G83. We also cover nearby Port Glasgow and Helensburgh.
Why do houses in Dunbartonshire crack?
Dunbartonshire has glacial till over sandstone and volcanic rock, with coal and ironstone workings recorded around Kirkintilloch and Bishopbriggs and soft river ground along the Clyde and Leven. Only an investigation can say why a particular building has moved.
Can I sell a house that has had subsidence?
Yes, though buyers and lenders will want paperwork. Keep the engineer’s report, monitoring results, the repair specification and any building control sign-off. A repaired house shown to be stable is far easier to sell than one with an open problem.
How do I know if cracks are subsidence?
Subsidence cracks are usually tapered, run diagonally from door and window corners, and show on both faces of the wall. Fine vertical cracks in new plaster are more often shrinkage. An engineer’s inspection, sometimes with monitoring, is the reliable way to tell.
Related work in Alexandria
- Subsidence insurance claim repairs
- Bowing wall repairs
- Retaining wall repairs
- Bay window subsidence repairs
- Concrete repairs
Subsidence repairs near Alexandria
Photos of the inside and outside of the cracked wall are the quickest way to start; send them and we will reply about your Alexandria home with a guide price.