Bicester · Oxfordshire
Underpinning in Bicester
Most underpinning in Bicester, as elsewhere, is partial, strengthening one corner or a single wall rather than the whole house. The engineer plans how the new foundation meets the old so that the junction does not become the next place to crack.
Guide price from£1,100per metre of wall inc VAT
- Postcodes
- OX6, OX26
- Population
- about 34,000
- Area
- Oxfordshire
- Pricing region
- South East
Is Oxfordshire prone to ground movement?
Bicester (OX6, OX26) has around 34,000 residents and sits in Oxfordshire. We also take enquiries from nearby Oxford (11 miles), Banbury (14 miles) and Aylesbury (16 miles).
Shrinkable clay is widespread in Oxfordshire. Ground movement here is more often linked to soils, drains and trees than to mining. Typical buildings in Oxfordshire: Cotswold stone villages, Victorian terraces in Oxford and Banbury, and large post-war and new-build estates around Didcot and Bicester.
Guide prices for underpinning in Bicester
These are guide prices for Bicester, using South East 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 | £1,100 – £1,700 | per metre of wall |
| Beam-and-base underpinning | £1,700 – £2,800 | per metre of wall |
| Mini-piled underpinning | £2,250 – £3,900 | per metre of wall |
| Engineer's design and building control feesest. | £895 – £2,800 | 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
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.
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.
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.
Symptoms that point to underpinning
- Movement continuing through more than one winter of monitoring
- One corner of the house visibly lower than the others
- Footings found to be very shallow during a trial pit
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.
Frequently asked questions
How much should I budget for underpinning in Bicester?
Guide prices for underpinning in Bicester start from about £1,100 per metre of wall, including VAT, on South East 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 Bicester?
Yes, Bicester is covered, along with postcode districts OX6, OX26. We also cover nearby Oxford and Banbury.
Why do houses in Oxfordshire crack?
Oxfordshire's vales sit on Oxford, Kimmeridge and Gault Clays, among the more shrinkage-prone clays in England, with Cotswold limestone in the north-west and chalk downs in the south. Only an investigation can say why a particular building has moved.
Will underpinning affect selling my house?
It needs explaining to buyers, but a properly documented scheme is far better than unresolved movement. Keep the engineer’s design, the building control completion certificate and any insurance paperwork. Lenders and surveyors will usually ask for these before agreeing a sale.
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.
Related work in Bicester
- Extension pulling away repairs
- Bowing wall repairs
- Wall tie replacement
- Concrete repairs
- Lintel replacement
Underpinning near Bicester
Call or send photos about your Bicester property, and we will explain the likely method, the approvals involved and a guide price before anything is booked.