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Mountain Ash · Mid Glamorgan

Bowing wall repairs in Mountain Ash

When a wall at a Mountain Ash property starts to belly outward, the important question is whether it is still moving. We look at the shape, the floors and the roof, then recommend restraint, an engineer’s view or both.

Guide price from£920per wall inc VAT

Gable wall of an end-terrace with round restraint tie plates fixed through it
Postcodes
CF45
Population
about 11,000
Area
Mid Glamorgan
Pricing region
Wales

Is Mid Glamorgan prone to ground movement?

With roughly 11,000 people, Mountain Ash spans postcode districts CF45 in Mid Glamorgan. We also take enquiries from nearby Rhondda (3 miles), Aberdare (4 miles) and Merthyr Tydfil (4 miles).

Clay soils are found in parts of Mid Glamorgan. Historic coal workings are recorded beneath parts of Mid Glamorgan, and a coal mining search is worth checking where movement is unexplained. What you mostly find across Mid Glamorgan: long stone and brick terraces on valley sides, Victorian houses in Bridgend and post-war estates.

Bowing wall repairs prices in Mountain Ash

These are guide prices for Mountain Ash, using Wales rates and including VAT. Your written quote follows photos or a survey, and is fixed once the repair is specified.

Guide prices inc VAT on Wales rates. Items marked est. are our estimates.
ItemGuide pricePer
Lateral restraint for a typical gable£920 – £2,750per wall
Remedial restraint ties installed£25 – £55per tie
Partial rebuild of a badly distorted sectionest.£2,750 – £7,350per section

How we usually approach bowing wall repairs

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

Partial rebuild

A section that has bowed beyond safe limits, or where bricks have crushed, is propped, taken down and rebuilt plumb with restraint built in. It is the most disruptive option, so it is kept to the area that genuinely needs it.

Best for: Badly distorted sections that cannot be tied back

What happens during bowing wall repairs, step by step?

  1. 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.

  2. 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.

  3. Close up and make good

    Boards are relaid, plaster and outside fixings made good, and cracked joints repointed. You receive a record of the restraint positions, which helps if you sell or if an engineer needs to check the wall again later.

What to look for before calling about bowing wall repairs

  • A visible belly in the wall when you sight along it
  • Window frames pulling away from the brickwork at the sides
  • Gaps opening between floorboards and the skirting on an outside wall

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.

Questions about bowing wall repairs in Mountain Ash

What is the price of bowing wall repairs in Mountain Ash?

Guide prices for bowing wall repairs in Mountain Ash 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.

Do you carry out bowing wall repairs in Mountain Ash?

Yes, Mountain Ash is covered, along with postcode districts CF45. We also cover nearby Rhondda and Aberdare.

Does the ground around Mountain Ash cause cracking?

Mid Glamorgan lies on the South Wales coalfield, with dense historic workings, spoil tips and steep valley sides. Landslip, retaining walls and mining legacy are all live issues in the valleys. 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.

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.

More repairs we carry out in Mountain Ash

Bowing wall repairs near Mountain Ash

Send photos of the bowing wall at your Mountain Ash property, including a level held against it, for a free initial assessment.

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.

CallGet a quote