Mid Glamorgan · Wales
Structural surveys and crack monitoring in Mid Glamorgan
Mid Glamorgan has its own mix of ground and building types, and that shapes how structural surveys and crack monitoring is done here. Mid Glamorgan has a mix of ground, with clay in some places and firmer rock in others.
Guide price from£460per property inc VAT

- Area
- Mid Glamorgan
- Pricing region
- Wales
- Ground
- Clay in parts
- Towns listed
- 12
Why does the ground in Mid Glamorgan matter for structural surveys and crack monitoring?
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.
Historic coal workings are recorded beneath parts of Mid Glamorgan, and a coal mining search is worth checking where movement is unexplained. Typical buildings in Mid Glamorgan: Long stone and brick terraces on valley sides, Victorian houses in Bridgend and post-war estates.
Guide prices for structural surveys and crack monitoring in Mid Glamorgan
Prices in Mid Glamorgan 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
Tell-tales and crack-width monitoring
Gauges are fixed across key cracks and read at set intervals, or reference studs are measured with callipers to a fraction of a millimetre. The readings show whether each crack is widening, closing or stable, and whether any change follows the seasons.
Best for: Tracking individual cracks over the seasons
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
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
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.
Seasonal readings
Readings are taken at intervals across the seasons, typically including late summer when clay is driest and late winter when it is wettest. The engineer checks each set against the base reading and decides whether more visits are needed.
Symptoms that point to structural surveys and crack monitoring
- Cracks reopening after being filled and decorated
- A mortgage valuation recommending a structural engineer’s report
- An insurer or loss adjuster asking for monitoring
- Doors and windows sticking at some times of year only
Do you need approval 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.
Structural surveys and crack monitoring near you in Mid Glamorgan
- Rhondda
- Tonypandy
- Bridgend
- Merthyr Tydfil
- Pontypridd
- Aberdare
- Caerphilly
- Maesteg
- Porthcawl
- Llantrisant
- Nelson
- Mountain Ash
Frequently asked questions
Does the ground around Rhondda 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. Historic coal workings are recorded beneath parts of Mid Glamorgan, and a coal mining search is worth checking where movement is unexplained. Only an investigation on site can say why a particular building has moved.
How much will structural surveys and crack monitoring cost in Mid Glamorgan?
On Wales rates, structural surveys and crack monitoring starts from about £460 per property, including VAT. The written price depends on the extent of the damage, access and whether an engineer or building control is needed.
What is a tell-tale on a crack?
A tell-tale is a small gauge fixed across a crack, with two overlapping plates marked in millimetres. As the crack opens, closes or shears, the plates move against each other and the reading changes. It gives a simple, repeatable record that anyone can check between visits.
Who carries out the crack monitoring?
An independent chartered structural engineer designs the monitoring and interprets the readings. We can arrange the engineer for you. We are the repair contractor, so we carry out the repair the engineer specifies once the monitoring has shown what is needed.
What happens after the monitoring ends?
If the readings show the building is stable, the engineer specifies a repair, usually crack stitching and making good. If movement continues, further investigation and a foundation repair design follow. Either way, we confirm a fixed price in writing once the repair is specified.