Covering Colwyn Bay
Our coverage around Colwyn Bay (LL29) also includes Rhyl, Bangor and Llangefni.
Homes in Clwyd
Welsh homes include long terraces built into hillsides, stone cottages and modern estates, and sloping sites often shape how and where an extension can go.
What is a structural alteration?
Structural alterations change the load-bearing parts of a house, most often removing a wall between two rooms and putting in a steel beam to create an open-plan layout. The work needs a structural engineer’s design and building regulations approval.
- Steel beam installation on padstones
- Fire protection and plaster encasement
- Making good floors, walls and ceilings
How much does a structural alteration cost in Colwyn Bay?
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 |
Planning and building rules in Colwyn Bay
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. Building regulations approval is needed for the structural work.
What should Colwyn Bay homeowners check first?
- Removing walls can affect the fire escape route on open-plan ground floors in three-storey houses.
- Pipes and cables in the wall need rerouting first.
From first call to completion
- Tell us about the project. Call, use the guide price tool or send the form with a few photos and a postcode.
- 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.
- We build it. Work follows an agreed programme, with inspections at each stage and a final sign-off.
What people ask before starting
How long does it take?
The structural work is usually done in a few days, with one to three weeks including making good.
Can the steel be hidden in the ceiling?
Often it can be set within the floor depth, avoiding a downstand. The engineer confirms what is possible.
Do you work in Colwyn Bay?
Yes. Colwyn Bay is within our coverage for structural alterations, along with nearby Rhyl and Bangor.
Structural alterations in nearby towns
- Structural alterations in Rhyl
- Structural alterations in Bangor
- Structural alterations in Llangefni
- Structural alterations in Flint
Learn more about structural alterations, or see every project we cover in Colwyn Bay.

