Fareham · Hampshire
Underpinning in Fareham
The ground under Fareham 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
- Postcodes
- PO14, PO15, PO16
- Population
- about 42,000
- Area
- Hampshire
- Pricing region
- South East
Why does the ground in Hampshire matter for underpinning?
With roughly 42,000 people, Fareham spans postcode districts PO14, PO15, PO16 in Hampshire. Neighbouring towns we cover: Portsmouth (5 miles), Hedge End (7 miles) and Waterlooville (7 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. Housing stock in Hampshire: Victorian terraces in Portsmouth and Southampton, 1930s semis, and large post-war and new-build estates.
Is it time for underpinning? Common signs
- Movement continuing through more than one winter of monitoring
- Cracks that keep widening after the drains have been repaired
- Floors sloping noticeably towards one external wall
What should you budget for underpinning in Fareham?
The ranges below reflect typical South East 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 | £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 |
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
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
What to expect when we carry out underpinning
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.
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.
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 Fareham?
Guide prices for underpinning in Fareham 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 Fareham?
We do. Fareham and the surrounding area are covered, including nearby Portsmouth and Hedge End. 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 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.
Does underpinning need building control approval?
Yes, underpinning is building work and needs approval and inspections in England and Wales, a building warrant in Scotland, and council building control in Northern Ireland. Inspectors usually check the excavations before concrete is poured. We deal with building control as part of the job.
Related work in Fareham
- Subsidence insurance claim repairs
- Chimney stack repairs
- Crack stitching
- Resin injection ground stabilisation
- Extension pulling away repairs
Underpinning near Fareham
Call or send photos about your Fareham property, and we will explain the likely method, the approvals involved and a guide price before anything is booked.