From Radyr kitchen extensions to full orangery builds, our roof lanterns service covers supply-only delivery and complete installation throughout Cardiff — same product, your choice of who fits it.
Free, no-obligation quotes · response within 1 working hour · supply-only or fully installed
Like much of Cardiff, Radyr 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 Radyr, Cardiff, Penarth and Llandaff and every corner of Cardiff. Surveys and quotes are free, with a response within 1 working hour on every enquiry.
Standard sizes below — made to measure quoted same day. Installation available nationwide if you’d rather we fit it.
Thermally broken aluminium · self-clean & solar glass options · 7–10 working days
Thermally broken aluminium · self-clean & solar glass options · 7–10 working days
Thermally broken aluminium · self-clean & solar glass options · 7–10 working days
Supply-only prices depend on size and glass specification — our online price list covers the standard sizes, and made-to-measure quotes usually come back the same day. Installed prices add the fitting, flashing and making good, and vary with roof access and upstand condition, so we confirm those on a free survey.
A 150mm minimum upstand is the standard requirement. It lifts the lantern clear of standing water on the flat roof and gives the flashing somewhere to dress. If your upstand isn't built yet, we'll supply the exact external kerb dimensions so your builder can form it ready for the lantern.
A correctly installed modern lantern shouldn't leak. Failures almost always trace back to the upstand or flashing rather than the lantern itself, which is why our installation teams dress and seal the junction as part of every fit, and why supply-only orders ship with full fitting instructions.
Yes — thermally broken frames and argon-filled units mean a modern lantern performs far better than the polycarbonate roofs people remember. With a solar-control upgrade the room stays comfortable in summer too.
Yes — installation is available across Radyr and Cardiff, and if you'd rather buy supply-only, kerbside delivery to Radyr is included in our standard service.
Standard-size supply-only prices are on the site now; made-to-measure quotes for Radyr usually come back the same working day, and installed projects are priced after a free survey.
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