Yeovil · Somerset
Underpinning in Yeovil
Homeowners in Yeovil often ask whether underpinning can be avoided, and in many cases it can. When movement continues after drains and trees have been dealt with, a well-designed scheme carries the house down to ground that no longer shifts with the seasons.
Guide price from£1,050per metre of wall inc VAT
- Postcodes
- BA20, BA21
- Population
- about 50,000
- Area
- Somerset
- Pricing region
- South West
How do local ground conditions affect underpinning in Yeovil?
Yeovil is in Somerset and takes in postcode districts BA20, BA21. About 50,000 people live there. If you are just outside Yeovil, we also cover Dorchester (18 miles), Bridgwater (21 miles) and Taunton (21 miles).
Parts of Somerset have clay that can shrink near trees in dry spells. Parts of Somerset lie on a former coalfield, so a coal mining search is worth checking if movement has no obvious cause. What you mostly find across Somerset: Bath stone Georgian terraces, Victorian houses in Taunton and Weston-super-Mare, and post-war estates.
Signs you may need underpinning
- Cracks that keep widening after the drains have been repaired
- Movement continuing through more than one winter of monitoring
- A large tree nearby that cannot be removed or reduced
How much will underpinning cost in Yeovil?
These are guide prices for Yeovil, using South West 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 | £1,050 – £1,550 | per metre of wall |
| Beam-and-base underpinning | £1,550 – £2,600 | per metre of wall |
| Mini-piled underpinning | £2,050 – £3,600 | per metre of wall |
| Engineer's design and building control feesest. | £825 – £2,600 | per scheme |
Which repair method suits a home in Yeovil?
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
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 when we carry out underpinning in Yeovil?
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.
Design and approvals
The engineer produces drawings and calculations. We make the building control or building warrant application, and party wall notices are served where the law requires them, before any digging starts.
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.
Rules for underpinning in England
In England, underpinning and other work that alters or strengthens a wall or foundation is building work under the Building Regulations (Part A, structure), so building control approves and inspects it. Like-for-like repairs often are not, and we tell you which applies before a price is agreed. Work to a party wall, or excavation close to a neighbour’s foundations, can also need a notice under the Party Wall etc. Act 1996.
Underpinning in Yeovil: questions and answers
What is the price of underpinning in Yeovil?
Guide prices for underpinning in Yeovil start from about £1,050 per metre of wall, including VAT, on South West rates. Your fixed written price follows photos or a survey and depends on the extent of the work and access.
Do you carry out underpinning in Yeovil?
We do. Yeovil and the surrounding area are covered, including nearby Dorchester and Bridgwater. A free initial assessment from your photos is the first step.
Does the ground around Yeovil cause cracking?
Somerset mixes Lias clays, Mercia Mudstone, limestone hills and the peat and alluvium of the Levels around Bridgwater, which can settle. The former Somerset coalfield around Radstock and Midsomer Norton left recorded workings. Only an investigation can say why a particular building has moved.
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.
More repairs we carry out in Yeovil
- Mining subsidence repairs
- Concrete repairs
- Structural surveys and crack monitoring
- Roof structure repairs
- Floor joist repairs
Underpinning near Yeovil
Have an engineer’s underpinning design for your Yeovil property? Send it over and we will return a fixed price in writing once the scheme is specified.