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Home / Foundations & Underpinning / Cardiff

Foundations & Underpinning in Cardiff

Professional foundations and underpinning across Cardiff — free survey, fixed written quotes and guaranteed work.

Homeowners and landlords in Cardiff choose S&K Property Investments & Improvement for foundations and underpinning that is planned properly and finished to a high standard.

We keep sites clean, schedules honest and communication clear from start to finish. Every solid build starts below ground. We dig and pour foundations for extensions and new builds, and carry out underpinning where existing foundations need strengthening — for example where a property has movement, subsidence, or where you're adding load with an extra storey. This is specialist work and we handle it with proper structural engineering and building-control sign-off.

Our foundations & underpinning service in Cardiff includes

  • Strip and trench-fill foundations
  • Mass concrete and traditional underpinning
  • Subsidence and movement remedial works
  • Foundations for extensions and new builds
  • Structural engineer's drawings arranged
  • Building-control inspections managed

We work from engineer's drawings, manage building-control inspections at each stage, and keep you updated throughout. Underpinning is disruptive by nature, so we plan the sequence carefully to keep your property safe and the work moving.

Foundations and underpinning across Cardiff

We carry out foundations and underpinning throughout Cardiff, including Cardiff, Llandaff, Whitchurch, Llanishen, Radyr, Rhiwbina, Roath, Canton and the surrounding villages.

CardiffLlandaffWhitchurchLlanishenRadyrRhiwbinaRoathCantonGrangetownSt Mellons

Foundations & Underpinning in Cardiff — FAQs

What is underpinning?
Underpinning strengthens or deepens existing foundations, usually where there's been movement or subsidence, or where extra load is being added. It transfers the building's weight onto more stable ground.
Do you handle building control?
Yes — foundation and underpinning work is inspected by building control at set stages, and we manage those inspections as part of the job.
What is underpinning?
Underpinning strengthens or deepens existing foundations, usually where there's been movement or subsidence, or where extra load is being added. It transfers the building's weight onto more stable ground.
Do you cover Cardiff?
Yes — S&K Property Investments & Improvement covers Cardiff and the surrounding towns and villages for foundations and underpinning. Call 0800 088 6341 to confirm and book a free survey.
How quickly can you start work in Cardiff?
It depends on the size of the job and our current schedule, but we will give you a realistic start date with your quote. Call 0800 088 6341 to check availability.

Ready to start? Call 0800 088 6341 or send an enquiry and we will arrange a convenient survey.

Foundations & Underpinning in Cardiff?

Call 0800 088 6341 or request a free survey and a fixed written quote for your foundations and underpinning project in Cardiff.

Call 0800 088 6341Request a quote
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