Monmouth · Gwent
Structural crack repairs in Monmouth
Cracks in walls in Monmouth come in many shapes, and the shape usually says more than the size. We assess stepped, vertical, horizontal and tapered cracks from your photos first, then explain whether yours looks cosmetic or needs a closer look.
Guide price from£75per metre of crack inc VAT
- Postcodes
- NP25
- Population
- about 10,000
- Area
- Gwent
- Pricing region
- Wales
What is the ground like in Gwent?
We cover Monmouth and its postcode districts NP25, part of Gwent, with a population of roughly 10,000. Neighbouring towns we cover: Chepstow (12 miles), Abergavenny (13 miles) and Pontypool (16 miles).
Parts of Gwent have clay that can shrink near trees in dry spells. Historic coal workings are recorded beneath parts of Gwent, and a coal mining search is worth checking where movement is unexplained. What you mostly find across Gwent: valley terraces on steep hillsides, Victorian houses in Newport and Abergavenny, and post-war estates.
What happens when we carry out structural crack repairs in Monmouth?
Survey and record
On site we measure the width along the crack, note its pattern and check nearby drains, trees and openings. If the cause is unclear, gauges can be fixed across it and read over several months.
Deal with the cause
Leaking drains, failed ties, a sagging lintel or ground movement are put right first, sometimes through an insurance claim. Repairing a crack before its cause is fixed usually means paying for the same job twice.
Repair and make good
Cracks are stitched, repointed or rebuilt as specified, with mortar matched to the existing wall. Internal crack lines are filled and redecorated where included, and you get a written note of what was done.
Signs you may need structural crack repairs
- Diagonal cracks running from the corners of windows and doors
- Stepped cracks zigzagging through the mortar joints of outside brickwork
- A crack noticeably wider at the top than the bottom, or the reverse
How much will structural crack repairs cost in Monmouth?
These are guide prices for Monmouth, 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 |
|---|---|---|
| Crack stitching with helical bars | £75 – £165 | per metre of crack |
| Single crack, outside only (up to about 2 m)est. | £370 – £830 | per crack |
| Internal making good and redecoration of the crack lineest. | £140 – £460 | per room |
Which repair method suits a home in Monmouth?
Filling and repointing
For hairline and narrow cracks that have stopped moving, the crack line is raked out and repointed in mortar matched to the original for strength, colour and texture. Inside, plaster cracks are cut out, filled with a flexible filler and redecorated.
Best for: Cracks up to about 5 mm that are no longer moving
Rebuilding a cracked section
Where bricks have split or the wall has moved out of line, the damaged area is taken down and rebuilt, bonded into sound masonry on either side. Reclaimed or matched bricks keep the repair discreet, with temporary support used where needed.
Best for: Badly displaced or broken brickwork
Rules for structural crack 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.
Structural crack repairs in Monmouth: questions and answers
How much will structural crack repairs cost in Monmouth?
Guide prices for structural crack repairs in Monmouth start from about £75 per metre of crack, 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 cover Monmouth?
Yes. We take enquiries from across Monmouth, including NP25, and from nearby places such as Chepstow and Abergavenny. Send photos for a free initial view and we will tell you what happens next.
Is the ground in Gwent prone to subsidence?
The valleys of Blaenau Gwent, Torfaen and Islwyn lie on the South Wales coalfield with extensive historic workings and spoil tips, while Newport and Monmouthshire have Mercia Mudstone, alluvium and Old Red Sandstone. Only an investigation can say why a particular building has moved.
Can I just fill a crack and paint over it?
You can fill a fine crack that is not moving, and for many hairline cracks that is the right repair. Filling a crack that is still opening hides the evidence, and it will usually come back. If a filled crack returns within a year or two, have it assessed.
What do stepped cracks in brickwork mean?
Stepped cracks usually mean part of the wall has moved and the weakest path, the mortar joints, has given way. They are common with subsidence and around openings. A thin stepped crack unchanged for years is often cosmetic, while a wide or tapered one should be looked at.
Other structural repairs in Monmouth
- Lintel replacement
- Extension pulling away repairs
- Crack stitching
- Gable end wall repairs
- Subsidence insurance claim repairs
Structural crack repairs near Monmouth
Send photos of the crack at your Monmouth property, close up and from a distance, for a free initial assessment and a no-obligation written quote.