Caernarfon · Gwynedd
Bowing wall repairs in Caernarfon
Sighting along a wall at your Caernarfon home and seeing a curve can be unsettling. Send us photos with a level held against it, and we will explain what is likely holding it, or not, and what the repair involves.
Guide price from£920per wall inc VAT
- Postcodes
- LL55
- Population
- about 10,000
- Area
- Gwynedd
- Pricing region
- Wales
What should you know about the ground under Caernarfon?
We cover Caernarfon and its postcode districts LL55, part of Gwynedd, with a population of roughly 10,000. Nearby places we cover include Llangefni (8 miles), Bangor (9 miles) and Pwllheli (18 miles).
Shrinkable clay is less common in Gwynedd than in south-east England. Old metal-mine shafts and workings are recorded in places, so mining searches are routine for some properties. Across Gwynedd, most homes are slate and stone terraces, chapels and cottages, Victorian seaside houses and post-war estates.
Methods for bowing wall repairs
Stitching a delaminating wall
Where the layers of a solid wall have separated, long stainless ties are drilled in from the face and bonded into the inner layer to bind the wall together again. This is often combined with restraint ties, so the wall is both reconnected through its thickness and tied back to the structure.
Best for: Solid walls where the outer layer has pulled away
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
From first photo to finished repair
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.
Fit the ties and straps
Ties are drilled through and fixed, or straps fitted and secured, at the spacing specified. Any rebuild is carried out at this stage, with temporary propping in place until the new brickwork has gained strength.
Symptoms that point to bowing wall repairs
- Internal plaster cracks where a wall meets the ceiling
- Gutters or the roof edge no longer lining up with the wall
- Gaps opening between floorboards and the skirting on an outside wall
Guide prices for bowing wall repairs in Caernarfon
For Caernarfon we use Wales rates. Treat the table as a budget guide, inc VAT; the price you pay is the one on your written quote.
| Item | Guide price | Per |
|---|---|---|
| Lateral restraint for a typical gable | £920 – £2,750 | per wall |
| Remedial restraint ties installed | £25 – £55 | per tie |
| Partial rebuild of a badly distorted sectionest. | £2,750 – £7,350 | per section |
Rules for bowing wall repairs in Wales
In Wales, the Welsh version of the Building Regulations applies. Underpinning and other work that alters or strengthens the structure needs building control approval and inspection; like-for-like repairs often do not. The Party Wall etc. Act 1996 applies to work on party walls and excavation close to a neighbour’s foundations.
Frequently asked questions
How much should I budget for bowing wall repairs in Caernarfon?
Guide prices for bowing wall repairs in Caernarfon start from about £920 per wall, including VAT, on Wales 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 Caernarfon?
Yes, Caernarfon is covered, along with postcode districts LL55. We also cover nearby Llangefni and Bangor.
Why do houses in Gwynedd crack?
Gwynedd and Anglesey are mostly hard rock with glacial deposits, so clay shrinkage is uncommon. Historic slate quarrying and metal mining have left tips and workings in places. Only an investigation can say why a particular building has moved.
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.
Will I need to move out during bowing wall repairs?
Usually not. Restraint work means lifting some floorboards or a strip of ceiling along one wall, so a room or two is disrupted for a few days. A partial rebuild of an external wall can be more involved, and we will talk it through with you first.
Related work in Caernarfon
- Extension pulling away repairs
- Subsidence insurance claim repairs
- Resin injection ground stabilisation
- Bay window subsidence repairs
- Boundary and garden wall repairs
Bowing wall repairs near Caernarfon
If an engineer has already drawn a restraint design for your Caernarfon home, we will price the scheme exactly as specified, tie by tie.