For roof lantern repairs in Cardiff, we offer both routes: supply-only with delivery for builders and DIYers, and full installation by our own teams in Cardiff, Penarth, Llandaff and county-wide.
Free, no-obligation quotes · response within 1 working hour · supply-only or fully installed
The county's housing stock — Victorian terraces and bay-fronted semis where side-return and rear extensions make lanterns a staple — shapes our recommendations here more than any brochure could.
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.
Could be five things: ridge capping, hip junction, perimeter seal, kerb flashing or the flat roof itself, with condensation a sixth impostor. We trace the actual path before quoting, so you pay to fix the real fault.
Yes — repairs cover all major aluminium, uPVC and timber systems regardless of who installed them. Photos of the lantern and the fault speed up the first visit.
The pane itself isn't — once a sealed unit's edge seal fails it's replaced, not resealed. The frame stays; only the glass unit changes.
When the frame itself has failed: non-thermally-broken early aluminium running with condensation, or softwood gone soft. We'll tell you straight on survey and price both routes.
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 · installation@lantern-roof.com