Covering Caerphilly
Our coverage around Caerphilly (CF83) also includes Whitchurch (4 miles to the south) and Pontypridd.
Homes in Gwent
Housing in Wales ranges from terraced streets in the valleys and older industrial towns to stone-built homes in rural areas and modern estates around the cities.
What does a structural alteration involve?
We arrange the structural calculations, support the floors and roof above with temporary props while the wall comes out, install the steel on padstones, then encase it for fire protection and make good. Chimney breast removals and new openings in external walls follow the same process.
- Building control application and inspections
- Temporary works and propping
- Fire protection and plaster encasement
What will a structural alteration cost?
Typical ranges for structural alterations. Ground conditions, access and specification move the final figure, which we fix in writing before work starts.
| Structural alterations | Guide price incl. VAT |
|---|---|
| Single load-bearing wall removal with steel | £3,000 to £7,500 |
| Chimney breast removal with support | £1,800 to £4,500 |
| Multiple walls or full open-plan remodel | £8,000 to £20,000 |
What approvals does a structural alteration need in Wales?
In Wales the planning rules, including what counts as permitted development, are set by the Welsh Government, and Welsh building regulations differ in places from England’s. We check both against your house before drawings are finalised, and handle party wall notices where needed.
Internal work like this does not usually need planning permission in Wales unless the building is listed.
What can affect a structural alteration?
- Shared chimney breasts and walls can involve the Party Wall Act.
- Pipes and cables in the wall need rerouting first.
What happens after I enquire?
- Send us the details. Give us a postcode, a rough idea of size and some photos, by phone, form or the guide price tool.
- Survey at your house. We look at the existing structure, services and access, and agree what the design needs to achieve.
- Design and fixed price. You get drawings and a written price for the agreed specification before anything is ordered.
- Build and hand over. Our teams build to the programme, building control inspects, and you get the completion paperwork at the end.
What people ask before starting
How much does it cost to remove a load-bearing wall?
Usually £3,000 to £7,500 including VAT for a single wall with a steel beam, calculations and making good.
How do I know if a wall is load-bearing?
We check on site and confirm with the structural engineer.
Who deals with the council for a project in Caerphilly?
We do. We prepare the drawings, submit planning or permitted development paperwork if needed, and arrange building control inspections.
Structural alterations in nearby towns
- Structural alterations in Whitchurch
- Structural alterations in Pontypridd
- Structural alterations in Cardiff
- Structural alterations in Newport
Learn more about structural alterations, or see every project we cover in Caerphilly.

