Structural Engineers in Cardiff
Structural calculations, drawings and practical engineering support for Cardiff homeowners, architects and contractors — from city-centre refurbishments to family extensions across the suburbs.
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We regularly support projects across Cardiff neighbourhoods — from apartments and refurbishments around Cardiff Bay to traditional terraces in Canton, Pontcanna and Riverside, and family homes around Roath, Cathays, Heath, Llanishen, Rhiwbina, Whitchurch and Llandaff.
Structural engineering for Cardiff homes and small commercial projects
Cardiff has a diverse mix of housing: Victorian terraces, traditional bays-and-gables, post-war estates, and modern developments around the Bay and city centre. Typical structural queries include chimney breast alterations, party-wall considerations, wall removals, floor strengthening and beam bearings.
We keep deliverables practical: clear assumptions, buildable details, and drawings that builders can follow — while keeping Building Regulations compliance front and centre.
1) Internal alterations (open-plan living)
Removing or widening openings in load-bearing walls, installing steel beams, posts, and padstones, and checking bearings and stability.
- Beam sizing + connection notes
- Padstone / bearing checks
- Temporary works guidance (high-level)
2) Extensions & renovations
Rear/side/wraparound extensions, structural tie-ins to existing houses, and details for steelwork, lintels, and supporting walls.
- Load paths + member design
- Opening/lintel design
- Coordination with architect layouts
3) Loft conversions
Dormers, ridge beams, floor upgrades, and trimming around stair openings — keeping headroom and buildability in mind.
- Floor joist / beam design
- Support to existing walls/frames
- Notes for builder sequencing
Local Cardiff “project fit” examples (typical)
These are examples of the kind of work we often see across Cardiff. If yours is similar, we can usually move quickly.
- Terrace refurb (CF10/CF11/CF24): opening up kitchen/living, beam + bearings, stability notes.
- Extension to family home (CF14/CF15/CF23): rear extension steel, lintels, and tie-in details.
- Loft conversion (CF5/CF11/CF14): new floor structure, trimming to stairwell, dormer framing.
- Chimney breast alteration (various): support strategy and load transfer checks.
If you share your postcode, a couple of photos, and your plan/sketch, we’ll tell you what information is needed and the best next step.
Areas we cover in Cardiff
City Centre, Cardiff Bay, Butetown, Grangetown, Riverside, Canton, Pontcanna, Llandaff, Fairwater, Ely, Heath, Gabalfa, Whitchurch, Rhiwbina, Llanishen, Lisvane, Penylan, Roath, Cathays, Adamsdown, Splott, Rumney, Llanrumney, Pentwyn, St Mellons and surrounding districts.
Common postcode districts include: CF10–CF11, CF14–CF15, CF23–CF24, CF3 (and nearby areas depending on the project).
Browse all locationsHow the process works
- Quick review of your scope, photos and any drawings.
- Site visit if required (or remote-first where appropriate).
- Design & checks (ULS/SLS where relevant) + buildable details.
- Issue pack: calculations + drawings/notes for Building Control.
- Support during build if questions come up.
You’ll get straightforward deliverables, not vague commentary — and we’ll clearly state assumptions and limitations.
Cardiff FAQs
Can you help if I only have photos and rough dimensions?
Do you work with Building Control and builders?
What do you need from me to price the job accurately?
Do you cover Cardiff Bay and city-centre apartments?
Request a structural engineer in Cardiff
Tell us what you’re doing and where (postcode), and we’ll recommend the most efficient route: desktop assessment, measured survey requirements, or a site visit.
Tip: If you’re removing a wall, include which rooms it separates, the span you want, and whether there’s a wall above.