Aberdeen and Aberdeenshire · Scotland
Underpinning in Aberdeen and Aberdeenshire
We arrange surveys and price underpinning throughout Aberdeen and Aberdeenshire. Clay shrinkage is less of a concern in Aberdeen and Aberdeenshire, so other causes such as drains, poor footings or older walls are checked first, and we take that into account before recommending a method.
Guide price from£950per metre of wall inc VAT
- Area
- Aberdeen and Aberdeenshire
- Pricing region
- Scotland
- Ground
- Mostly firmer ground
- Towns listed
- 7
How do local ground conditions affect underpinning in Aberdeen and Aberdeenshire?
The north-east is mostly granite and other hard rock with glacial till and sands, so clay shrinkage is uncommon. Granite buildings, older lime mortars and coastal exposure shape most repairs.
Ground movement here is more often linked to soils, drains and trees than to mining. Housing stock in Aberdeen and Aberdeenshire: Granite tenements and terraces in Aberdeen, fishing-town cottages and post-war estates.
Symptoms that point to underpinning
- Cracks that keep widening after the drains have been repaired
- Footings found to be very shallow during a trial pit
- A large tree nearby that cannot be removed or reduced
- One corner of the house visibly lower than the others
Guide prices for underpinning in Aberdeen and Aberdeenshire
For Aberdeen and Aberdeenshire we use Scotland rates. Treat the table as a budget guide, inc VAT; the price you pay is the one on your written quote.
| 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 |
Methods for underpinning
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
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
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
From first photo to finished repair
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.
Excavation and concrete
Work runs in the sequence the engineer sets so the wall is never left unsupported over a long length. Building control inspects the excavations before concrete goes in, and each section is dry-packed tight to the footing above.
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.
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.
Towns in Aberdeen and Aberdeenshire we cover for underpinning
Frequently asked questions
Is the ground in Aberdeen and Aberdeenshire prone to subsidence?
The north-east is mostly granite and other hard rock with glacial till and sands, so clay shrinkage is uncommon. Granite buildings, older lime mortars and coastal exposure shape most repairs. 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 Aberdeen and Aberdeenshire?
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.
Which underpinning method is best?
The right method depends on how deep firm ground lies, the load on the wall and the access. Mass concrete suits moderate depths, beam-and-base spreads heavier loads, and mini-piles reach deep soft ground or work through tight access. The engineer chooses the method from the site investigation.
Do I need to tell my neighbours about underpinning?
In England and Wales you usually do. Underpinning a party wall normally needs two months’ notice, and excavating near a neighbour’s foundations needs one month’s notice under the Party Wall etc. Act 1996. Scotland and Northern Ireland have no equivalent Act, but agreeing the work in writing still helps.
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.