Angus and Dundee · Scotland
Underpinning in Angus and Dundee
If you live in Angus and Dundee and are looking at underpinning, the first question is why the wall moved. 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.
Guide price from£950per metre of wall inc VAT
- Area
- Angus and Dundee
- Pricing region
- Scotland
- Ground
- Mostly firmer ground
- Towns listed
- 5
What is the ground like 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. Housing stock in Angus and Dundee: Sandstone tenements in Dundee, fishing-town houses and post-war estates.
How we usually approach underpinning
Mini-piled underpinning
Small-diameter piles are driven or bored down to firm ground and linked by a reinforced beam or needles that pick up the wall. Compact rigs fit through narrow access, and the method reaches depths that would be impractical to excavate by hand.
Best for: Deep soft ground, tree roots, or restricted access
Mass concrete underpinning
The traditional method. Short sections under the wall are dug out in a set sequence, usually about a metre at a time, and filled with concrete before the next section is opened. It suits moderate depths and good access, and it needs little specialist plant.
Best for: Shallow failures on firm ground found at moderate depth
Beam-and-base underpinning
A reinforced concrete beam is cast beneath or alongside the existing footing and carries the wall onto mass concrete bases at intervals. It spreads load well across variable ground and can mean less digging than continuous underpinning along the whole wall.
Best for: Longer runs of wall or heavier loads over variable ground
What happens during underpinning, step by step?
Engineer’s investigation
An independent chartered structural engineer studies the monitoring results, trial pits and soil tests, then decides whether underpinning is needed and which method suits. We can arrange the engineer if you do not already have one.
Fixed written price
With the design in hand we confirm a fixed price in writing, setting out the method, the length of wall, access arrangements and the making good. For insurance work we can price to the loss adjuster’s or engineer’s schedule.
Crack repairs and handover
Once the new foundation has cured, cracks are stitched and repointed, inside walls are made good, and paths or patios disturbed by the dig are reinstated. You receive the building control completion paperwork for your records.
What to look for before calling about underpinning
- Floors sloping noticeably towards one external wall
- Footings found to be very shallow during a trial pit
- Movement continuing through more than one winter of monitoring
- Cracks that keep widening after the drains have been repaired
Underpinning prices in Angus and Dundee
These are guide prices for Angus and Dundee, 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 |
|---|---|---|
| Mass-concrete underpinning | £950 – £1,400 | per metre of wall |
| Beam-and-base underpinning | £1,400 – £2,400 | per metre of wall |
| Mini-piled underpinning | £1,900 – £3,300 | per metre of wall |
| Engineer's design and building control feesest. | £760 – £2,400 | per scheme |
Do you need approval for underpinning 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.
Underpinning near you in Angus and Dundee
Questions about underpinning in Angus and Dundee
Does the ground around Dundee cause cracking?
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 underpinning cost in Angus and Dundee?
On Scotland rates, underpinning starts from about £950 per metre of wall, including VAT. The written price depends on the extent of the damage, access and whether an engineer or building control is needed.
Does my house really need underpinning?
Often not, because most subsidence is fixed by repairing drains or managing trees and then repairing the cracks. Underpinning is justified when monitoring shows movement continuing after the cause has been dealt with, or when the ground itself is unsuitable. An independent engineer should make that call.
Does underpinning need building control approval?
Yes, underpinning is building work and needs approval and inspections in England and Wales, a building warrant in Scotland, and council building control in Northern Ireland. Inspectors usually check the excavations before concrete is poured. We deal with building control as part of the job.
Can you underpin only part of a house?
Yes, partial underpinning of one corner or one wall is common, though the engineer must think about the junction with the unstrengthened part. A sudden change in foundation depth can cause new cracking, so the scheme may step down gradually or include a movement joint.