From Penarth kitchen extensions to full orangery builds, our slimline 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
Around Penarth and the wider county, housing stock runs to Victorian terraces and bay-fronted semis where side-return and rear extensions make lanterns a staple. We've specified and supplied for exactly these property types across Cardiff, so recommendations come from real local precedent.
Every lantern is thermally broken aluminium as standard, glazed with 28mm argon-filled units, and available with self-clean and solar-control coatings. Supply-only orders include kerb specifications and fitting documentation; installed projects carry our written workmanship guarantee on top of the 10-year product cover.
Penarth, Whitchurch (Cardiff), Radyr and Cardiff and the rest of Cardiff all sit inside standard coverage: free surveys, free quotes, and a response within 1 working hour.
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
On current systems, around 40mm at the ridge externally. Claims much below that usually measure a different part of the frame — we'll always quote like-for-like ridge and hip dimensions so you can compare honestly.
No — the slimness comes from structural bonding and better alloys, not thinner-for-the-sake-of-it metal. Each lantern is engineered for its span and site wind loading.
Tighter tolerances, structural glazing and higher-spec profiles all add manufacturing cost, and installation needs more care. It's the premium tier of the lantern market and priced accordingly.
Very much so — they're a favourite on architect-designed projects. We work from your drawings, check kerb dimensions before fabrication and coordinate delivery with your build programme.
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