Whether it's a single lantern over a Penarth kitchen or a multi-roof development, our roof lanterns service pairs supply-only pricing with nationwide installation — and Cardiff is core territory for both.
Free, no-obligation quotes · response within 1 working hour · supply-only or fully installed
Cardiff property here means Victorian terraces and bay-fronted semis where side-return and rear extensions make lanterns a staple. That local context shapes what we recommend in Penarth — from glass specification to frame colour — before a single quote is written.
Frames are thermally broken aluminium, glazing is 28mm argon-filled with self-clean and solar options, and everything is made to measure. Buy supply-only with kerbside delivery, or have our fitters handle the lot under a written workmanship guarantee.
From Penarth we also serve Llandaff, Whitchurch (Cardiff) and Radyr and the wider county — so if you're comparing quotes anywhere in Cardiff, ours is free, fast and without obligation.
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
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.
Most single-lantern installations are completed in a day once the upstand is ready. Larger or multiple-lantern projects typically run one to two days including flashing and internal making good.
Yes — installation is available across Penarth and Cardiff, and if you'd rather buy supply-only, kerbside delivery to Penarth is included in our standard service.
Standard-size supply-only prices are on the site now; made-to-measure quotes for Penarth 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