Llantrisant · Mid Glamorgan
Brick arch repairs in Llantrisant
Before repairing a brick arch at a Llantrisant property, we check what sits behind it. A rotting timber lintel on the inner face is a frequent hidden cause, and fixing only the visible arch would leave the real problem in place.
Guide price from£370per arch inc VAT
- Postcodes
- CF38, CF72
- Population
- about 14,000
- Area
- Mid Glamorgan
- Pricing region
- Wales
Is Mid Glamorgan prone to ground movement?
Llantrisant (CF38, CF72) has around 14,000 residents and sits in Mid Glamorgan. If you are just outside Llantrisant, we also cover Pontypridd (4 miles), Tonypandy (7 miles) and Caerphilly (7 miles).
Parts of Mid Glamorgan have clay that can shrink near trees in dry spells. Historic coal workings are recorded beneath parts of Mid Glamorgan, and a coal mining search is worth checking where movement is unexplained. Across Mid Glamorgan, most homes are long stone and brick terraces on valley sides, Victorian houses in Bridgend and post-war estates.
Which repair method suits a home in Llantrisant?
Reinforcing a sound arch
Where the arch has only dropped slightly and the bricks are sound, stainless helical bars are bonded into the bed joints just above it, extending well into the wall on each side. The bars turn the courses above into a reinforced band of masonry, so the arch no longer has to carry the full load. Joints are repointed to match.
Best for: Slightly dropped or cracked arches with sound bricks
Rebuilding over a former
A timber former is cut to the arch profile and propped under the opening. The old arch is carefully taken down, bricks cleaned for reuse, and the arch rebuilt over the former with tight joints and a properly set keystone. The former stays until the mortar is strong enough to carry the load.
Best for: Badly dropped arches or ones with loose voussoirs
What happens when we carry out brick arch repairs in Llantrisant?
Support the opening
Props carry the brickwork above, and for a rebuild a former is made to the exact profile of the arch. The window or door frame is protected so it is not asked to carry any load.
Repair the arch
Bars are bonded into the joints above a sound arch, or the arch is taken down and relaid over the former using the original bricks where possible, with matched replacements for any that are damaged.
Strike the former and point
Once the mortar has cured enough, the former and props are removed. Joints are finished to match the surrounding wall, and any cracks running from the arch into the wall are repaired at the same visit.
Signs you may need brick arch repairs
- A vertical crack running up from the middle of the arch
- A flat arch that has started to sag into a shallow curve
- Mortar falling out of the arch joints after frosty weather
How much will brick arch repairs cost in Llantrisant?
These are guide prices for Llantrisant, using Wales rates and including VAT. Your written quote follows photos or a survey, and is fixed once the repair is specified.
| Item | Guide price | Per |
|---|---|---|
| Stitching and reinforcing a sound archest. | £370 – £1,100 | per arch |
| Rebuilding an arch (one side) | £830 – £1,200 | per opening |
| Rebuilding an arch (both sides) | £1,650 – £2,400 | per opening |
Rules for brick arch repairs in Wales
In Wales, small like-for-like repairs do not usually need approval, but work that alters or strengthens the structure needs building control under the Welsh Building Regulations, and the Party Wall etc. Act 1996 can apply to shared walls.
Brick arch repairs in Llantrisant: questions and answers
What is the price of brick arch repairs in Llantrisant?
Guide prices for brick arch repairs in Llantrisant start from about £370 per arch, 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 brick arch repairs in Llantrisant?
Yes, Llantrisant is covered, along with postcode districts CF38, CF72. We also cover nearby Pontypridd and Tonypandy.
Does the ground around Llantrisant 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.
Can you match the original bricks?
Usually, because most arches are rebuilt with their own cleaned bricks, which is the best match of all. Damaged bricks are replaced with reclaimed or new bricks chosen for size, colour and texture, and the mortar is matched to the surrounding joints.
Do flat brick arches need a lintel?
Many flat soldier arches were built with a hidden steel bar or timber behind, because they have little true arch action. When repairing one, we check what is supporting it and, where needed, reinforce it with bars or add suitable support behind.
More repairs we carry out in Llantrisant
- Bay window subsidence repairs
- Subsidence insurance claim repairs
- Gable end wall repairs
- Structural crack repairs
- Chimney stack repairs
Brick arch repairs near Llantrisant
Have several dropped arches along one Llantrisant elevation? We can price them together and suggest the order that makes sense.