Oban · Argyll and Bute
Underpinning in Oban
Underpinning a house in Oban starts with proof that it is needed, not with a digger. An independent engineer looks at the monitoring and ground investigation, then chooses between mass concrete, beam-and-base or mini-piles for that particular wall and soil.
Guide price from£950per metre of wall inc VAT
- Postcodes
- PA34
- Population
- about 8,500
- Area
- Argyll and Bute
- Pricing region
- Scotland
Is Argyll and Bute prone to ground movement?
Postcode districts PA34 cover Oban, a Argyll and Bute town of about 8,500 people.
Clay shrinkage is less of a concern in Argyll and Bute, so other causes such as drains, poor footings or older walls are checked first. Ground movement here is more often linked to soils, drains and trees than to mining. What you mostly find across Argyll and Bute: Victorian villas, stone terraces and cottages, and post-war estates.
What happens when we carry out underpinning in Oban?
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.
Signs you may need underpinning
- Cracks that keep widening after the drains have been repaired
- Movement continuing through more than one winter of monitoring
- Floors sloping noticeably towards one external wall
How much will underpinning cost in Oban?
The ranges below reflect typical Scotland costs for underpinning, including VAT. Scaffold, access and making good can push a job to the top of the range.
| 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 |
Which repair method suits a home in Oban?
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
Rules 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 in Oban: questions and answers
How much will underpinning cost in Oban?
Guide prices for underpinning in Oban start from about £950 per metre of wall, 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 Oban?
Survey visits to Oban are by arrangement because of travel and access. We can still give a free initial view from photos, and we tell you any travel cost before a visit is booked.
Is the ground in Argyll and Bute prone to subsidence?
Argyll is hard rock with thin glacial soils and raised beaches along the coast; mainland towns such as Helensburgh and Oban sit on steep coastal slopes. Only an investigation can say why a particular building has moved.
Can I stay in my house during underpinning?
Most people stay at home during external underpinning, because the digging happens outside along the wall. Expect noise, restricted access to that side of the house and some dust. If the work has to be done from inside, through the floor, moving out for part of the job is sometimes advised.
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.
Other structural repairs in Oban
- Gable end wall repairs
- Subsidence insurance claim repairs
- Boundary and garden wall repairs
- Retaining wall repairs
- Brick arch repairs
Have an engineer’s underpinning design for your Oban property? Send it over and we will return a fixed price in writing once the scheme is specified.