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Home / External Wall Insulation / Cardiff

External Wall Insulation in Cardiff

Professional external wall insulation across Cardiff — free survey, fixed written quotes and guaranteed work.

Looking for external wall insulation in Cardiff? S&K Property Investments & Improvement is a trusted local team covering Cardiff and the surrounding area.

We keep sites clean, schedules honest and communication clear from start to finish. Solid-wall and hard-to-heat homes lose a lot of warmth through the walls. External wall insulation (EWI) wraps the outside of the building in insulation and a fresh render or cladding finish — cutting bills, warming rooms and transforming the look in one job.

Our external wall insulation service in Cardiff includes

  • Insulation boards fixed to external walls
  • Mesh, basecoat and weatherproof finish
  • Silicone render or cladding top-coat
  • Detailing around windows, doors and eaves
  • Warmer rooms and lower heating bills
  • Refreshed exterior appearance

We fix insulation boards to the wall, reinforce with mesh and basecoat, and finish in a durable render or cladding. It is ideal for solid-wall properties that cannot take cavity insulation, and it keeps the disruption outside.

External wall insulation across Cardiff

We carry out external wall insulation throughout Cardiff, including Cardiff, Llandaff, Whitchurch, Llanishen, Radyr, Rhiwbina, Roath, Canton and the surrounding villages.

CardiffLlandaffWhitchurchLlanishenRadyrRhiwbinaRoathCantonGrangetownSt Mellons

External Wall Insulation in Cardiff — FAQs

How thick is the insulation?
Typically 50–100mm depending on the target performance and wall build-up; we specify it at survey.
Will EWI change how my house looks?
Yes — for the better. It is finished in fresh render or cladding in your choice of colour and texture.
How thick is the insulation?
Typically 50–100mm depending on the target performance and wall build-up; we specify it at survey.
Do you cover Cardiff?
Yes — S&K Property Investments & Improvement covers Cardiff and the surrounding towns and villages for external wall insulation. 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.

Call 0800 088 6341 or request a free quote online and we will get straight back to you.

External Wall Insulation in Cardiff?

Call 0800 088 6341 or request a free survey and a fixed written quote for your external wall insulation project in Cardiff.

Call 0800 088 6341Request a quote
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