Winchester · Hampshire
Bowing wall repairs in Winchester
A slight lean is common on houses of a certain age in Winchester, and many have stood that way for generations. A growing bow, crushing bricks or a gap opening at the skirting is different, and is worth checking promptly.
Guide price from£1,100per wall inc VAT

- Postcodes
- SO21, SO22, SO23
- Population
- about 46,000
- Area
- Hampshire
- Pricing region
- South East
What should you know about the ground under Winchester?
Winchester is in Hampshire and takes in postcode districts SO21, SO22, SO23. About 46,000 people live there. Nearby, we also cover Eastleigh (7 miles), Romsey (9 miles) and Hedge End (11 miles).
Shrinkable clay is widespread in Hampshire. 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.
What to expect when we carry out bowing wall repairs
Assess the bow
We look at where the wall bows, how far it is out of plumb and how the floors and roof meet it. Photographs from your phone held flat against the wall often show the shape clearly before anyone visits.
Decide restrain or rebuild
If the wall is badly out of plumb, has bricks crushing or follows removed internal walls, we recommend an engineer, and can arrange one. Their view sets whether restraint is enough or a section needs rebuilding.
Open up inside
Floorboards or a ceiling strip are lifted along the affected wall to expose the joists. We fit noggins where joists run alongside, and plan furniture moves with you, since this is the most disruptive part of the job.
Is it time for bowing wall repairs? Common signs
- A visible belly in the wall when you sight along it
- Gaps opening between floorboards and the skirting on an outside wall
- Gutters or the roof edge no longer lining up with the wall
What should you budget for bowing wall repairs in Winchester?
The ranges below reflect typical South East costs for bowing wall repairs, including VAT. Scaffold, access and making good can push a job to the top of the range.
| Item | Guide price | Per |
|---|---|---|
| Lateral restraint for a typical gable | £1,100 – £3,350 | per wall |
| Remedial restraint ties installed | £30 – £65 | per tie |
| Partial rebuild of a badly distorted sectionest. | £3,350 – £8,950 | per section |
Repair options we may recommend
Lateral restraint straps
Galvanised or stainless straps are fixed across three or more joists or rafters, turned down against the inside face of the wall and fixed into the masonry. They work well at ceiling and roof level, where the fixings stay hidden.
Best for: Gables and walls bowing near ceiling or roof level
Restraint ties into the floor
Stainless restraint ties are drilled through the wall and fixed into the floor joists or into blocking between them. Where joists run parallel, noggins are fitted across several joists so the tie has something solid to hold. A neat plate or a buried fixing is left on the outside face.
Best for: Walls bowing at floor level where joists run alongside
Rules for bowing wall 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 bowing wall repairs questions
How much should I budget for bowing wall repairs in Winchester?
Guide prices for bowing wall repairs in Winchester start from about £1,100 per 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 Winchester?
Yes. We take enquiries from across Winchester, including SO21, SO22, SO23, and from nearby places such as Eastleigh and Romsey. Send photos for a free initial view and we will tell you what happens next.
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.
Do restraint ties show on the outside?
Some do and some do not. Certain ties leave a small round or square plate on the outside face, while others are fully recessed and pointed over. Straps fitted from inside leave no outside trace at all. We agree the finish with you before work starts.
Is a bowing wall dangerous?
A bowing wall is not always dangerous, but it should never be ignored. Many have been slightly out of line for decades. A bow that is growing, crushing bricks or appeared after building work is more serious, and an engineer should look at it promptly. Your engineer will confirm.
Related work in Winchester
- Underpinning
- Chimney stack repairs
- Structural surveys and crack monitoring
- Subsidence repairs
- Gable end wall repairs
Bowing wall repairs near Winchester
Send photos of the bowing wall at your Winchester property, including a level held against it, for a free initial assessment.