If you're planning korniche roof lanterns in Llandaff, you're in the right place. We supply made-to-measure lanterns with delivery across Cardiff, and our installation teams fit throughout the area — so you can buy supply-only or have the whole job handled.
Free, no-obligation quotes · response within 1 working hour · supply-only or fully installed
Like much of Cardiff, Llandaff features Victorian terraces and bay-fronted semis where side-return and rear extensions make lanterns a staple. It's the kind of work our surveyors and fitting teams handle week in, week out across the Wales region.
You get the same product either way — thermally broken aluminium, self-clean and solar-control glass options, made to the millimetre. The only choice is who fits it: your builder with our documentation, or our own nationwide teams.
Coverage takes in Llandaff, Cardiff, Penarth and Whitchurch (Cardiff) and every corner of Cardiff. Surveys and quotes are free, with a response within 1 working hour on every enquiry.
The frame itself can be assembled on the kerb in under 30 minutes by a competent installer; a full fit including glazing and flashing is comfortably a one-day job. Manufacture lead time is typically one to two weeks.
Yes — the system is fully thermally broken with no metal-to-metal path from outside to inside, and paired with argon-filled units it achieves U-values that comfortably satisfy Building Regulations for extensions.
Every Korniche is made to order, so 'custom' is the standard. You give us the external kerb size and the lantern arrives fabricated to those exact dimensions.
Yes — supply-only Korniche orders are dispatched UK-wide with assembly instructions, and our team is on the phone if your builder has questions on the day.
Yes — Llandaff is inside our standard Cardiff coverage. Our fitting teams survey and install throughout the area, and supply-only deliveries run to Llandaff on dedicated glass transport.
Stocked standard sizes typically deliver to Llandaff within 7–10 working days; made-to-measure fabrication adds to that, and we confirm the slot when you order so it lands with your build programme.
Send the form and we’ll come back with honest prices — supply-only or installed — with a response within 1 working hour.
Prefer to talk? Call 0800 088 6248 or WhatsApp · sales@lantern-roof.com