Clydach · West Glamorgan
Extension pulling away repairs in Clydach
The ground under Clydach and West Glamorgan varies street by street, and extensions built on shallower footings feel those differences first. A trial pit and a drain survey usually tell an engineer how the extension’s foundation is coping.
Guide price from£550per junction inc VAT
- Postcodes
- SA6, SA7
- Population
- about 19,000
- Area
- West Glamorgan
- Pricing region
- Wales
What is the ground like in West Glamorgan?
We cover Clydach and its postcode districts SA6, SA7, part of West Glamorgan, with a population of roughly 19,000. If you are just outside Clydach, we also cover Neath (4 miles), Swansea (5 miles) and Gorseinon (6 miles).
Clay soils are found in parts of West Glamorgan. Historic coal workings are recorded beneath parts of West Glamorgan, and a coal mining search is worth checking where movement is unexplained. Across West Glamorgan, most homes are hillside terraces, Victorian villas in Swansea and post-war estates.
What should you budget for extension pulling away repairs in Clydach?
The ranges below reflect typical Wales costs for extension pulling away repairs, including VAT. Scaffold, access and making good can push a job to the top of the range.
| Item | Guide price | Per |
|---|---|---|
| Junction crack repair with stainless tiesest. | £550 – £1,850 | per junction |
| Movement joint and making goodest. | £370 – £1,100 | per junction |
| Underpinning the extension where needed | £920 – £2,300 | per metre of wall |
Repair options we may recommend
Underpinning the extension
If the extension is still dropping because its footings are too shallow or on poor ground, they are taken deeper by mass concrete, beam-and-base or mini-piles. The engineer designs the scheme, and the junction is repaired once the new foundation is in.
Best for: Active movement from shallow footings, roots or soft ground
Junction crack repair with stainless ties
The open joint is cut out, stainless ties or helical bars are fixed across it into both the old and new masonry, and the joint is repointed or rendered to match. Inside, the corner is replastered. This suits extensions that moved once and have since stopped.
Best for: Settled extensions with a stable gap at the junction
What to expect when we carry out extension pulling away repairs
Find what is moving
An independent chartered structural engineer can inspect, and we can arrange one. A drain survey under the extension, a trial pit at its footing and tell-tale monitoring across the joint are common checks before choosing the repair.
Choose the fix
The engineer decides between ties, a movement joint or underpinning. We confirm a fixed price in writing once the repair is specified, covering the junction, flashings, internal finishes and any foundation work.
Finish and hand over
Internal corners are replastered, skirtings and coving refixed, and doors or windows in the extension eased where the movement affected them. Records of the repair and any approvals are passed to you.
Is it time for extension pulling away repairs? Common signs
- Mastic or render at the joint repeatedly splitting open
- Patio doors or windows in the extension starting to bind
- Extension roof flashing lifting off the original wall
Rules for extension pulling away 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.
Your extension pulling away repairs questions
How much should I budget for extension pulling away repairs in Clydach?
Guide prices for extension pulling away repairs in Clydach start from about £550 per junction, including VAT, on Wales rates. Your fixed written price follows photos or a survey and depends on the extent of the work and access.
Can you survey a property in Clydach?
Yes. We take enquiries from across Clydach, including SA6, SA7, and from nearby places such as Neath and Swansea. Send photos for a free initial view and we will tell you what happens next.
Why do houses in West Glamorgan crack?
Swansea and Neath Port Talbot lie on the South Wales coalfield, with historic workings, tips and steep valley sides, and softer estuarine ground around the docks. Only an investigation can say why a particular building has moved.
Who is responsible if a recent extension is moving?
If the extension is recent, the original builder, the designer or building control records may be relevant, and you may have rights against the builder. Gather the plans, completion certificate and contract. Insurance often excludes defects in new construction, so check your policy.
Can I just fill the gap with mastic?
Mastic can keep water out short term, but it does not stop movement or reconnect the walls. If the gap reopens after filling, something is still moving. Photograph and measure it over a few months first, so an engineer can see the trend.
Related work in Clydach
- Mining subsidence repairs
- Chimney stack repairs
- Bay window subsidence repairs
- Floor joist repairs
- Lintel replacement
Extension pulling away repairs near Clydach
Photos of the crack, the internal corner and the roof flashing are a good start; send them about your Clydach home and we will reply with a view.