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Fleet · Hampshire

Underpinning in Fleet

The ground under Fleet and the wider Hampshire decides how deep an underpinning scheme has to go. Where firm ground lies close to the surface, mass concrete is usually the practical choice, while deeper soft ground often points to mini-piles.

Guide price from£1,100per metre of wall inc VAT

Underpinning bay excavated beneath a brick house footing with fresh concrete placed
Postcodes
GU13, GU51, GU52
Population
about 39,000
Area
Hampshire
Pricing region
South East

Is Hampshire prone to ground movement?

With roughly 39,000 people, Fleet spans postcode districts GU13, GU51, GU52 in Hampshire. If you are just outside Fleet, we also cover Farnborough (3 miles), Aldershot (4 miles) and Farnham (5 miles).

Hampshire is one of the parts of the UK where clay soils are most likely to move with the seasons. Ground movement here is more often linked to soils, drains and trees than to mining. Typical buildings in Hampshire: Victorian terraces in Portsmouth and Southampton, 1930s semis, and large post-war and new-build estates.

Repair options we may recommend

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

What to expect when we carry out underpinning

  1. 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.

  2. 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.

  3. 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.

Is it time for underpinning? Common signs

  • A large tree nearby that cannot be removed or reduced
  • One corner of the house visibly lower than the others
  • Movement continuing through more than one winter of monitoring

What should you budget for underpinning in Fleet?

Guide prices below are for homes in Fleet, on South East rates and including VAT. A survey or good photos let us turn them into a fixed written price.

Guide prices inc VAT on South East rates. Items marked est. are our estimates.
ItemGuide pricePer
Mass-concrete underpinning£1,100 – £1,700per metre of wall
Beam-and-base underpinning£1,700 – £2,800per metre of wall
Mini-piled underpinning£2,250 – £3,900per metre of wall
Engineer's design and building control feesest.£895 – £2,800per scheme

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.

Your underpinning questions

How much should I budget for underpinning in Fleet?

Guide prices for underpinning in Fleet 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 Fleet?

We do. Fleet and the surrounding area are covered, including nearby Farnborough and Aldershot. A free initial assessment from your photos is the first step.

Why do houses in Hampshire crack?

Central Hampshire is chalk, while the south around Portsmouth, Southampton and the New Forest fringe and the north-east around Farnborough sit on London Clay, Reading Beds and other clays and sands. The clay areas see seasonal movement near trees. Only an investigation can say why a particular building has moved.

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.

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.

Related work in Fleet

Underpinning near Fleet

For a no-obligation written quote on underpinning in Fleet, send photos of the cracking and any engineer’s report you already hold.

Next step

Send us photos of the crack or movement

A free initial assessment from your photos, then a no-obligation written quote. If an engineer, drain survey or monitoring is needed first, we say so before you spend anything.

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