Alton · Hampshire
Subsidence repairs in Alton
Whatever the ground is like under Alton, the order of work for subsidence stays the same. Confirm the cause, deal with it, check the movement has stopped, and only then repair the walls so the cracks do not simply return.
Guide price from£2,800per property inc VAT
- Postcodes
- GU34
- Population
- about 19,000
- Area
- Hampshire
- Pricing region
- South East
What should you know about the ground under Alton?
Alton is in Hampshire and takes in postcode districts GU34. About 19,000 people live there. We also take enquiries from nearby Bordon (5 miles), Farnham (9 miles) and Basingstoke (9 miles).
Much of Hampshire sits on clay that shrinks in dry summers and swells in wet winters. 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.
Repair options we may recommend
Foundation strengthening
Where the ground cannot be made stable, the load is carried down to firmer soil by underpinning, a beam-and-base scheme, mini-piles or resin injection, depending on the soil and access. It is designed by an engineer and is the exception, not the rule.
Best for: Ongoing movement where removing the cause has not worked
Crack stitching and making good
Once movement has stopped, cracked brickwork is cut along the bed joints, stainless helical bars are bonded in to tie the wall together, and the joints are repointed to match. Inside, plaster is renewed along the crack line before redecoration.
Best for: Category 1 to 3 cracking in walls that are otherwise sound
What to expect when we carry out subsidence repairs
Send photos or call
Send photos of the cracks with a coin or tape for scale, and say when you first noticed them. We give a free initial assessment and suggest whether an engineer, a drain survey or your insurer comes first.
Find the cause
An independent chartered structural engineer inspects the house and, where needed, arranges a drain survey, trial pits or soil tests. We can arrange the engineer. The aim is to know what is moving, and why, before money goes on repairs.
Deal with the cause
Drains are repaired, vegetation is managed on the engineer’s advice, or a foundation scheme is designed if nothing else will work. Where monitoring is recommended, readings run for several months to show the movement has stopped.
Is it time for subsidence repairs? Common signs
- Cracks that open in summer and partly close again in winter
- Fresh cracks showing on both the inside and outside of one wall
- Wallpaper rippling or tearing where the wall meets the ceiling
What should you budget for subsidence repairs in Alton?
The ranges below reflect typical South East costs for subsidence repairs, including VAT. Scaffold, access and making good can push a job to the top of the range.
| Item | Guide price | Per |
|---|---|---|
| Structural engineer's investigation and report | £560 – £2,250 | per property |
| CCTV drain survey (common first check) | £170 – £390 | per survey |
| Typical repair once the cause is dealt with: crack stitching and making goodest. | £2,800 – £13,400 | per property |
| Foundation strengthening where it is needed (see underpinning) | £1,100 – £3,900 | per metre of wall |
Rules for subsidence repairs 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 subsidence repairs questions
What is the price of subsidence repairs in Alton?
Guide prices for subsidence repairs in Alton start from about £2,800 per property, 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.
Do you carry out subsidence repairs in Alton?
Yes. We take enquiries from across Alton, including GU34, and from nearby places such as Bordon and Farnham. Send photos for a free initial view and we will tell you what happens next.
Does the ground around Alton cause cracking?
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.
How do I know if cracks are subsidence?
Subsidence cracks are usually tapered, run diagonally from door and window corners, and show on both faces of the wall. Fine vertical cracks in new plaster are more often shrinkage. An engineer’s inspection, sometimes with monitoring, is the reliable way to tell.
Does subsidence always need underpinning?
No, most subsidence is repaired without underpinning. When a leaking drain is fixed or nearby vegetation is managed, the ground usually stabilises and the house needs only crack repairs. Foundation work is kept for movement that continues after the cause has gone.
More repairs we carry out in Alton
- Structural surveys and crack monitoring
- Structural crack repairs
- Boundary and garden wall repairs
- Chimney stack repairs
- Subsidence insurance claim repairs
Subsidence repairs near Alton
For a no-obligation written quote on subsidence repairs in Alton, call us or send a few photos and a short note on when the cracks appeared.