Cardiff · South Glamorgan
Structural surveys and crack monitoring in Cardiff
If a valuer or insurer has asked for a structural report on your Cardiff property, we can arrange an independent engineer. Their findings, and any monitoring they recommend, give buyers, lenders and insurers the evidence they need.
Guide price from£460per property inc VAT
- Postcodes
- CF10, CF11, CF24
- Population
- about 370,000
- Area
- South Glamorgan
- Pricing region
- Wales
What should you know about the ground under Cardiff?
With roughly 370,000 people, Cardiff spans postcode districts CF10, CF11, CF24 in South Glamorgan. If you are just outside Cardiff, we also cover Penarth (3 miles), Caerphilly (7 miles) and Barry (7 miles).
Parts of South Glamorgan have clay that can shrink near trees in dry spells. Ground movement here is more often linked to soils, drains and trees than to mining. What you mostly find across South Glamorgan: Victorian terraces in Cardiff and Penarth, inter-war semis and post-war estates.
Guide prices for structural surveys and crack monitoring in Cardiff
Prices in Cardiff are worked out on Wales rates. They include VAT and are a starting point: access, the extent of the damage and whether an engineer or building control is involved all move the figure.
| Item | Guide price | Per |
|---|---|---|
| Structural engineer's inspection and report | £460 – £1,850 | per property |
| Crack monitoring: installation and three seasonal readings | £1,350 – £2,200 | per programme |
| Extra monitoring visit | £385 | per visit |
Methods for structural surveys and crack monitoring
Level monitoring
Survey points are fixed around the building and their heights measured against a stable datum on each visit. This shows whether one part of the house is dropping or rising compared with the rest, which crack widths alone cannot reveal.
Best for: Suspected subsidence or heave across a whole house
Engineer’s structural inspection and report
A chartered structural engineer visits, records the cracks, checks the walls, floors, drains and nearby trees, and writes a report on the likely cause and next steps. It may recommend monitoring, investigations such as trial pits, or a repair specification.
Best for: A first expert opinion on any significant cracking
From first photo to finished repair
Free initial assessment
Send photos of the cracks with something for scale and tell us when they appeared. We give a free view on whether an engineer’s inspection is worthwhile, and whether your insurer should be told first.
Install monitoring points
Tell-tales, measuring studs or level points are fixed at the locations the engineer chooses. A base reading is taken on the first visit, so every later reading can be compared against it.
Repair or close
If the readings show the house is stable, the engineer specifies the repair and we confirm a fixed price in writing. If movement continues, the cause is investigated further before a foundation repair is designed.
Symptoms that point to structural surveys and crack monitoring
- Doors and windows sticking at some times of year only
- Cracks that seem wider after a hot, dry summer
- A crack you are unsure is old or new
Rules for structural surveys and crack monitoring 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.
Frequently asked questions
How much will structural surveys and crack monitoring cost in Cardiff?
Guide prices for structural surveys and crack monitoring in Cardiff start from about £460 per property, 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 Cardiff?
We do. Cardiff and the surrounding area are covered, including nearby Penarth and Caerphilly. A free initial assessment from your photos is the first step.
Is the ground in South Glamorgan prone to subsidence?
Cardiff is built on Mercia Mudstone, river gravels and alluvium, and the Vale of Glamorgan on Lias limestone and clay. Soft alluvium near the rivers and docks can settle. Only an investigation can say why a particular building has moved.
How long does crack monitoring take?
Monitoring normally runs for 6 to 12 months, because readings need to cover both the dry and wet seasons on clay soils. Shorter periods can be enough where the cause is clearly non-seasonal, such as a drain leak that has been repaired. The engineer decides when there is enough evidence.
Can I monitor cracks myself?
You can keep a useful record by photographing cracks with a ruler and pencilling dated marks at their ends. That helps an engineer, but it does not replace measured monitoring, which insurers and lenders usually expect. Do not fill or decorate over cracks while monitoring.
Other structural repairs in Cardiff
- Retaining wall repairs
- Roof structure repairs
- Bowing wall repairs
- Extension pulling away repairs
- Floor joist repairs
Structural surveys and crack monitoring near Cardiff
For a no-obligation written quote on crack monitoring in Cardiff, send photos and a note of when the cracks appeared and how they have changed.